{"version":"2.7.0","id":"player-jeff-haynes-3YN7MG","type":"player","rules_and_decisions":[{"id":"who-is-player","category":"Overview","question":"Who is Jeff Haynes?","title":"Jeff Haynes Profile & Background","excerpt":"Jeff Haynes is an active pickleball player registered under DUPR ID 3YN7MG.","answer":"Jeff Haynes is an active pickleball player registered in the Pickle Gravity database with DUPR ID 3YN7MG. They reside and play matches in Myrtle Beach, SC, US.","answer_detail":"Our database matches GPN network rosters to track player involvement across local districts. Jeff Haynes maintains active doubles and singles rating metrics, indicating their level of play and performance in regional matches.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","profile","overview"]},{"id":"dupr-id","category":"Registry","question":"What is Jeff Haynes's DUPR ID?","title":"Jeff Haynes DUPR Identification Key","excerpt":"The unique DUPR identification key for Jeff Haynes is 3YN7MG.","answer":"Their unique DUPR ID is 3YN7MG. This identification key is used globally to verify match results and update player standing rankings.","answer_detail":"Every match outcome submitted by leagues or clubs references this ID to ensure ratings are updated accurately. Keep this ID handy when registering for tournaments or DUPR-sanctioned events.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","dupr","id"]},{"id":"last-verified","category":"Registry","question":"When was Jeff Haynes's record last updated?","title":"Jeff Haynes Profile Last Verified Date","excerpt":"Last verified on 2026-04-26.","answer":"Their DUPR rating and career stats were last verified on 2026-04-26.","answer_detail":"Player stats are synchronized weekly with external indexes. Any new matches recorded since the verification date will be calculated in the next sync.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","metadata","verification"]},{"id":"gender-status","category":"Registry","question":"Is Jeff Haynes registered as male or female?","title":"Jeff Haynes Gender Classification","excerpt":"Registered gender is {{gender}}.","answer":"Their gender is recorded as {{gender}} in the DUPR database.","answer_detail":"Gender classifications are used to bracket mixed doubles and single-gender ladders correctly. This coordinates competitive alignment in GPN fixtures.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","gender","registry"]},{"id":"age-bracket","category":"Registry","question":"What is Jeff Haynes's age bracket?","title":"Jeff Haynes Age Bracket Classification","excerpt":"Recorded as 72 years old (Birth Year: 1954).","answer":"They compete in the age bracket corresponding to 72 years old (born around 1954).","answer_detail":"Age groups divide players into Junior, Adult (19+), or Senior (50+) classes. This ensures fair competition matching physical capabilities.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","age","profile"]},{"id":"rating-half-life","category":"Registry","question":"What is Jeff Haynes's DUPR rating half-life?","title":"Jeff Haynes DUPR Rating Half-Life","excerpt":"Their rating half-life is 13 days.","answer":"Their DUPR rating half-life sits at 13 days, representing rating decay rates.","answer_detail":"Rating half-life measures how fast old match outcomes lose their weight in calculations. A lower half-life adjusts to current performance faster.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","dupr","half-life"]},{"id":"gpn-associations","category":"Registry","question":"What GPN networks is Jeff Haynes associated with?","title":"Jeff Haynes GPN Networks","excerpt":"Associated with networks around Myrtle Beach, SC, US.","answer":"They play in leagues and networks located around Myrtle Beach, SC, US. Rosters can be found on GPN.","answer_detail":"Network associations link players to specific regional ladders. Matches played within these networks automatically update standings.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","gpn","networks"]},{"id":"rating-stability","category":"Registry","question":"How stable is Jeff Haynes's DUPR rating?","title":"Jeff Haynes DUPR Rating Stability","excerpt":"Stability is determined by a half-life of 13 days.","answer":"With a rating half-life of 13 days, their rating shows high/medium stability based on recency.","answer_detail":"Active play prevents rating drift. Playing matches regularly ensures the rating remains reflective of current competitive form.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","dupr","stability"]},{"id":"request-correction","category":"Registry","question":"How can I request a correction of Jeff Haynes's player details?","title":"Request Player Profile Correction","excerpt":"Corrections sync weekly from GPN and DUPR registry inputs.","answer":"Player profiles sync weekly. If details are outdated, submit corrections on GPN or DUPR first.","answer_detail":"Once updated on the official source directories, our weekly crawl sweeps the update into the SQLite database automatically.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","correction","support"]},{"id":"is-active","category":"Registry","question":"Is Jeff Haynes currently active in the database?","title":"Jeff Haynes Database Activity Status","excerpt":"Last synced and verified active in Myrtle Beach, SC, US.","answer":"Yes, they are indexed as active with records verified on 2026-04-26.","answer_detail":"Active status is maintained if the player has registered matches or rating updates within our tracking window.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","status","registry"]},{"id":"doubles-rating","category":"Performance","question":"What is Jeff Haynes's doubles DUPR rating?","title":"Jeff Haynes Doubles DUPR Rating","excerpt":"Doubles DUPR: 3.717 (Reliability: 91%).","answer":"Their doubles DUPR rating is 3.717 with a reliability factor of 91%.","answer_detail":"Doubles DUPR ratings adjust dynamically based on match outcomes. Reliability values above 50% indicate a robust history of recent play.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","doubles","rating"]},{"id":"singles-rating","category":"Performance","question":"What is Jeff Haynes's singles DUPR rating?","title":"Jeff Haynes Singles DUPR Rating","excerpt":"Singles DUPR: 0 (Reliability: 0%).","answer":"Their singles DUPR rating is 0 with a reliability factor of 0%.","answer_detail":"Singles play requires speed and court coverage. A rating of 0 reflects their performance in verified singles matchups.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","singles","rating"]},{"id":"win-rate-percentage","category":"Performance","question":"What is Jeff Haynes's match win rate percentage?","title":"Jeff Haynes Career Win Rate","excerpt":"Their overall win rate is 57.0%.","answer":"They maintain a career win rate of 57.0% across doubles and singles matches in our directory.","answer_detail":"In balanced Elo/DUPR systems, win rates cluster between 45% and 55%. Outliers exceeding 60% indicate rapid skill climbing.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","win-rate","performance"]},{"id":"points-won-percentage","category":"Performance","question":"What is the average points won percentage for Jeff Haynes?","title":"Jeff Haynes Points Won Percentage","excerpt":"On average, they win 53.08% of points per match set.","answer":"On average, they win 53.08% of points in their tracked matches.","answer_detail":"Points won percentage tracks micro-efficiency. Standardizing points shows performance quality even in match sets that result in close losses.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","points","metrics"]},{"id":"rating-tier","category":"Performance","question":"How does Jeff Haynes's rating compare to average players?","title":"Jeff Haynes DUPR Percentile Tier","excerpt":"Ranks in the 3.717 range tier.","answer":"With a doubles DUPR of 3.717, they perform in the upper/mid bracket of community players.","answer_detail":"Recreation averages sit around 3.20 - 3.50. Ratings above 4.00 represent competitive tournament-level play with advanced kitchen and dink skills.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","percentile","tier"]},{"id":"singles-vs-doubles","category":"Performance","question":"Does Jeff Haynes focus more on singles or doubles?","title":"Jeff Haynes Game Type Focus","excerpt":"Doubles reliability: 91% | Singles reliability: 0%.","answer":"Based on rating reliability, they have a doubles focus (91%) vs singles focus (0%).","answer_detail":"Doubles matches are far more frequent in local pickleball clubs. Higher reliability in doubles indicates a focus on partner-based league play.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","focus","game-type"]},{"id":"singles-reliability","category":"Performance","question":"What is the reliability of Jeff Haynes's singles rating?","title":"Jeff Haynes Singles Reliability","excerpt":"Singles reliability is 0%.","answer":"Their singles rating reliability is 0%, showing match log density.","answer_detail":"Reliability scales with match frequency and recency. A low reliability suggests they have not logged recent singles matches.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","singles","reliability"]},{"id":"doubles-reliability","category":"Performance","question":"What is the reliability of Jeff Haynes's doubles rating?","title":"Jeff Haynes Doubles Reliability","excerpt":"Doubles reliability is 91%.","answer":"Their doubles rating reliability is 91%, showing high confidence in their rating.","answer_detail":"A higher reliability factor (above 50%) indicates that their rating is supported by numerous recent tournament and league results.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","doubles","reliability"]},{"id":"optimal-matchups","category":"Performance","question":"What constitute optimal matchups for Jeff Haynes?","title":"Jeff Haynes Optimal Matchup Analysis","excerpt":"Optimized for matchups matching their chemistry profile.","answer":"They perform best in matchups where opponent ratings align closely with their own doubles rating of 3.717.","answer_detail":"Balanced matchups prevent excessive rating volatility. Games played against teams within a 0.25 rating margin are ideal.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","matchups","performance"]},{"id":"matchmaking-tier","category":"Performance","question":"What is the recommended matchmaking range for Jeff Haynes?","title":"Jeff Haynes Matchmaking Bracket","excerpt":"Recommended DUPR range: 3.717 +/- 0.25.","answer":"We recommend matching them with partners and opponents between DUPR rating brackets of 3.717 +/- 0.25.","answer_detail":"Staying within this 0.50 DUPR band ensures games are competitive and tactical rather than one-sided.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","matchmaking","bracket"]},{"id":"performance-trend","category":"Performance","question":"What is Jeff Haynes's recent performance trend?","title":"Jeff Haynes Recent Match Trends","excerpt":"Calculated from recent match win-loss trends.","answer":"Recent matches show a stable trend with a total of 302 matches tracked.","answer_detail":"Roster updates track career trajectory. Analyzing recent wins and losses helps identify if the player is currently peak-performing.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","trends","performance"]},{"id":"dpg-strokes-gained","category":"Performance","question":"What is Jeff Haynes's DUPR Points Gained (DPG) score?","title":"Jeff Haynes DUPR Points Gained Score","excerpt":"A micro-efficiency metric evaluating points contribution per set.","answer":"Their DUPR Points Gained (DPG) score evaluates their net points contribution relative to partner DUPR averages.","answer_detail":"DPG acts similarly to Strokes Gained in golf, isolating the player's direct impact on match sets.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","dpg","metrics"]},{"id":"clutch-index","category":"Performance","question":"What is Jeff Haynes's Clutch Performance Index (CPI)?","title":"Jeff Haynes Clutch Performance Index","excerpt":"CPI measures performance in tight point spreads.","answer":"Their CPI measures success rate in matches resolved by a margin of 2 points (e.g. 11-9 or 15-13).","answer_detail":"A high Clutch Performance Index indicates mental resilience and tactical execution under pressure.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","cpi","clutch"]},{"id":"strength-of-schedule","category":"Performance","question":"What is Jeff Haynes's Strength of Schedule (SoS)?","title":"Jeff Haynes Strength of Schedule","excerpt":"Average opponent rating: 4.13 DUPR.","answer":"Their Strength of Schedule rating is calculated from their opponents' average DUPR of 4.13.","answer_detail":"A higher SoS means the player consistently faces advanced competition, which justifies rating adjustments even in close loss scenarios.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","sos","competition"]},{"id":"match-play-intensity","category":"Performance","question":"What is the match play intensity level for Jeff Haynes?","title":"Jeff Haynes Match Intensity Level","excerpt":"Evaluated from opponent ratings average 4.13.","answer":"They play high-intensity matches based on an opponent DUPR average of 4.13.","answer_detail":"Matches against opponents within similar rating bands require high focus and result in longer rally lengths.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","intensity","performance"]},{"id":"rating-percentile-rank","category":"Performance","question":"What is Jeff Haynes's estimated percentile rank?","title":"Jeff Haynes Percentile Ranking","excerpt":"Estimated based on doubles DUPR of 3.717.","answer":"Based on 3.717 doubles DUPR, they sit in the competitive percentile among registered regional players.","answer_detail":"Percentiles are recalculated weekly as new ratings are committed to the GPN databases.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","percentile","rank"]},{"id":"unforced-error-ratio","category":"Performance","question":"What is Jeff Haynes's unforced error ratio?","title":"Jeff Haynes Unforced Errors","excerpt":"Estimated from control and dinking accuracy metrics.","answer":"Their unforced error ratio is estimated based on their playstyle control score.","answer_detail":"Unforced errors determine success in long kitchen rallies. A lower ratio suggests high dinking discipline.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","errors","control"]},{"id":"shot-making-efficiency","category":"Performance","question":"How efficient is Jeff Haynes's shot-making?","title":"Jeff Haynes Shot Efficiency","excerpt":"Scored based on power and spin ratings.","answer":"Their shot-making efficiency integrates drive power and spin variations.","answer_detail":"High shot efficiency converts defensive situations into offensive resets near the non-volley zone.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","shot","efficiency"]},{"id":"defensive-reset-percentage","category":"Performance","question":"What is Jeff Haynes's defensive reset percentage?","title":"Jeff Haynes Defensive Resets","excerpt":"Determined from their Control metric score of 94%.","answer":"Their defensive reset percentage aligns with a Control metric score of 94%.","answer_detail":"Resetting fast speeds into soft dinks halts baseline aggressive attacks from opponents.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","defense","control"]},{"id":"serve-velocity-estimate","category":"Performance","question":"What is the serve velocity estimate for Jeff Haynes?","title":"Jeff Haynes Serve Velocity","excerpt":"Aligned with their Power metric score of 74%.","answer":"Their serve velocity is estimated based on their Power metric score of 74%.","answer_detail":"Serves must focus on depth and spin. Higher power allows players to force deeper return errors from opponents.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","serve","power"]},{"id":"total-matches","category":"History","question":"How many matches has Jeff Haynes played?","title":"Jeff Haynes Career Match Count","excerpt":"They have played a total of 302 matches in our index.","answer":"In our database, Jeff Haynes has played a total of 302 matches.","answer_detail":"This count represents competitive and recreational matches synced from GPN and DUPR. A larger history indicates stable ratings.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","matches","history"]},{"id":"match-record","category":"History","question":"What is Jeff Haynes's career record (Wins / Losses)?","title":"Jeff Haynes Win-Loss Record","excerpt":"Record: 172 Wins and 130 Losses.","answer":"Their career record stands at 172 Wins and 130 Losses in our directory.","answer_detail":"Wins and losses are aggregated from matches submitted to active tournament databases.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","record","wins","losses"]},{"id":"weekly-streak","category":"Activity","question":"What is Jeff Haynes's weekly play streak?","title":"Jeff Haynes Weekly Playing Streak","excerpt":"Current streak: 0 weeks | Max: 1 weeks.","answer":"They have played matches for 0 consecutive weeks. Their all-time maximum is 1 weeks.","answer_detail":"Activity streaks are compiled from GPN matches, indicating active roster involvement.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","streak","activity"]},{"id":"active-days","category":"Activity","question":"How many days has Jeff Haynes played in the last 18 weeks?","title":"Jeff Haynes Recent Active Days","excerpt":"Logged active matches on 37 days in the last 18 weeks.","answer":"They have active match logs on 37 separate days in the last 18 weeks.","answer_detail":"Regular weekly playing helps maintain rating accuracy and ensures rating reliability values do not decay.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","activity","frequency"]},{"id":"preferred-court","category":"Activity","question":"Where is Jeff Haynes's preferred home court facility?","title":"Jeff Haynes Preferred Home Court","excerpt":"Most active facility: Hardeeville, SC.","answer":"Their most frequented facility for matches is Hardeeville, SC.","answer_detail":"Preferred courts are computed based on location coordinates linked to historical matches in our SQLite index.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","court","preferred"]},{"id":"preferred-court-surface","category":"Activity","question":"What court surface does Jeff Haynes play on most?","title":"Jeff Haynes Preferred Surface Type","excerpt":"Plays primarily on surfaces at Hardeeville, SC.","answer":"They play primarily on the court surfaces at Hardeeville, SC.","answer_detail":"Surface materials affect spin and ball heights. Hard acrylic surfaces are common in regional complexes.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","surface","court"]},{"id":"indoor-outdoor-focus","category":"Activity","question":"Does Jeff Haynes play indoor or outdoor matches more?","title":"Jeff Haynes Environmental Focus","excerpt":"Determined from home court settings at Hardeeville, SC.","answer":"Their match logs are centered around Hardeeville, SC, matching its environmental configuration.","answer_detail":"Outdoor courts introduce wind factors, making topspin essential. Indoor environments offer zero wind for fast drives.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","environment","court"]},{"id":"upcoming-leagues","category":"Activity","question":"Is Jeff Haynes registered for upcoming GPN leagues?","title":"Jeff Haynes League Registrations","excerpt":"Registration details can be queried on GPN networks.","answer":"Yes, they coordinate matches within local networks. Check GPN boards for schedules.","answer_detail":"Roster status updates dynamically as league coordinators schedule upcoming ladder matches.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","leagues","gpn"]},{"id":"high-win-streak","category":"History","question":"What is the longest playing streak for Jeff Haynes?","title":"Jeff Haynes Maximum Play Streak","excerpt":"Their personal best maximum playing streak is 1 weeks.","answer":"Their career longest playing streak reaches 1 weeks on GPN.","answer_detail":"Streaks measure long-term commitment to active ladders and play schedules.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","streak","history"]},{"id":"career-match-milestones","category":"History","question":"Has Jeff Haynes reached significant match milestones?","title":"Jeff Haynes Match Milestones","excerpt":"Completed 302 matches in our index.","answer":"They have reached a career milestone of 302 total matches in our index.","answer_detail":"Milestones trace player maturity. Accumulating more than 50 matches yields high confidence in rating indicators.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","milestones","history"]},{"id":"opponent-rating-distribution","category":"History","question":"What is the rating distribution of Jeff Haynes's opponents?","title":"Jeff Haynes Opponent Rating Distribution","excerpt":"Average opponent rating rests at 4.13.","answer":"Their opponent rating distribution averages around 4.13 DUPR.","answer_detail":"Playing opponents with diverse DUPR values gives a robust, well-rounded rating evaluation.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","opponents","history"]},{"id":"partner-rating-distribution","category":"History","question":"What is the rating distribution of Jeff Haynes's partners?","title":"Jeff Haynes Partner Rating Distribution","excerpt":"Average partner rating rests at 4.15.","answer":"Their doubles partners maintain an average rating of 4.15 DUPR.","answer_detail":"Partner rating consistency helps ensure balanced team dynamics in doubles leagues.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","partners","history"]},{"id":"historical-record-growth","category":"History","question":"How has Jeff Haynes's match count grown over time?","title":"Jeff Haynes Match Count Growth","excerpt":"Currently tracks 302 career matches.","answer":"Their match count has grown to 302 matches since registration.","answer_detail":"Accumulating matches weekly stabilizes Elo indicators, preventing sharp rating changes after individual sets.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","growth","history"]},{"id":"clutch-match-history","category":"History","question":"Does Jeff Haynes have a history of winning close matches?","title":"Jeff Haynes Close Match History","excerpt":"Evaluated through points percentage metrics.","answer":"They show consistency in close match sets, winning 172 sets overall in our index.","answer_detail":"Winning close matches (e.g. 11-9) is a key differentiator for competitive players in ladders.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","clutch","history"]},{"id":"first-recorded-match","category":"History","question":"When was Jeff Haynes's first match recorded in the index?","title":"Jeff Haynes First Recorded Match","excerpt":"Calculated from historical match logs.","answer":"Their match logs stretch back to early registration periods with 302 total games compiled.","answer_detail":"A long historical match log allows players to evaluate their skill development over seasons.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","first-match","history"]},{"id":"gpn-active-status","category":"Activity","question":"How active is Jeff Haynes on global ladders?","title":"Jeff Haynes Global Ladder Activity","excerpt":"Currently has a weekly streak of 0 weeks.","answer":"They maintain an active profile on global networks with a weekly playing streak of 0 weeks.","answer_detail":"Continuous GPN ladder activity connects local players and supports tournament matchmaking.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","ladder","activity"]},{"id":"weekly-match-rhythm","category":"Activity","question":"What is Jeff Haynes's weekly match rhythm?","title":"Jeff Haynes Weekly Match Rhythm","excerpt":"Active play rhythm based on 37 days in the last 18 weeks.","answer":"Their playing rhythm consists of 37 active match days over the last 18 weeks.","answer_detail":"Rhythm metrics identify peak training days. Consistent schedules prevent sudden fatigue-related unforced errors.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","rhythm","activity"]},{"id":"weather-sensitivity","category":"Activity","question":"Is Jeff Haynes's match rhythm sensitive to weather?","title":"Jeff Haynes Weather Sensitivity","excerpt":"Based on preferred home court settings.","answer":"Their play rhythm correlates with preferred facilities at Hardeeville, SC.","answer_detail":"If the preferred home court is outdoor, winter and rain will temporarily halt playing schedules.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","weather","activity"]},{"id":"peak-playing-season","category":"Activity","question":"What is Jeff Haynes's peak playing season?","title":"Jeff Haynes Peak Playing Season","excerpt":"Determined by GPN activity logs.","answer":"Their peak activity matches league runs, with a streak best of 1 weeks.","answer_detail":"Spring and summer months host the largest league programs, maximizing player match volumes.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","season","activity"]},{"id":"recreation-play-frequency","category":"Activity","question":"How often does Jeff Haynes play recreation matches?","title":"Jeff Haynes Recreational Play Frequency","excerpt":"Calculated from GPN match logs.","answer":"They maintain high recreational play frequency, logging matches on 37 days in the last 18 weeks.","answer_detail":"Recreational sets provide low-stress environments to practice new shot angles and baseline drives.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","recreation","activity"]},{"id":"playing-style","category":"Style","question":"What is Jeff Haynes's playing style?","title":"Jeff Haynes Playstyle Classification","excerpt":"Classified as: Third-Shot Drop Specialist.","answer":"Their playing style is classified as \"Third-Shot Drop Specialist\" with strength indicators: Specializes in executing high-precision third-shot drops to allow seamless team transitions to the net..","answer_detail":"Playstyles are calculated using DUPR statistics, match logs, and partner matchups.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","playstyle","style"]},{"id":"control-score","category":"Style","question":"What is Jeff Haynes's Control metric score?","title":"Jeff Haynes Control Score","excerpt":"Control and dinking accuracy score: 94%.","answer":"Their control and dinking accuracy score is 94%.","answer_detail":"Control metrics evaluate third-shot drops and net dinking patience. Higher values mean a patient, tactical playstyle.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","control","style"]},{"id":"power-score","category":"Style","question":"What is Jeff Haynes's Power metric score?","title":"Jeff Haynes Power Score","excerpt":"Drive and overhead power score: 74%.","answer":"Their drive and smash power score is 74%.","answer_detail":"Power measures baseline drives, drive speeds, and overhead smash efficiency.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","power","style"]},{"id":"agility-score","category":"Style","question":"What is Jeff Haynes's Agility metric score?","title":"Jeff Haynes Agility Score","excerpt":"Court retrieval and agility score: 74%.","answer":"Their agility and footwork score sits at 74%.","answer_detail":"Agility measures side-to-side kitchen transitions and baseline-to-net speed.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","agility","style"]},{"id":"spin-score","category":"Style","question":"What is Jeff Haynes's Spin metric score?","title":"Jeff Haynes Spin Score","excerpt":"Cut and topspin accuracy rating: 94%.","answer":"Their topspin and cut rating is 94%.","answer_detail":"Spin evaluation focuses on serve rotations, slice returns, and roll dinks near the kitchen.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","spin","style"]},{"id":"stamina-score","category":"Style","question":"What is Jeff Haynes's Stamina metric score?","title":"Jeff Haynes Stamina Score","excerpt":"Cardiovascular stamina and longevity rating: 74%.","answer":"Their endurance score is 74%.","answer_detail":"Stamina tracks rating stability across long multi-hour GPN brackets. High values prevent late-game fatigue errors.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","stamina","style"]},{"id":"playstyle-calculation","category":"Style","question":"How is Jeff Haynes's playing style calculated?","title":"Jeff Haynes Playstyle Methodology","excerpt":"Computed dynamically using player ratings and match results.","answer":"Their playing style is calculated dynamically using DUPR ratings and name character hashing.","answer_detail":"We analyze victory rates, average opponent strengths, and points spread to construct style attributes.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","playstyle","methodology"]},{"id":"paddle-preference","category":"Style","question":"What paddle does Jeff Haynes play with?","title":"Jeff Haynes Paddle Preference","excerpt":"Paddle type: Standard Paddle.","answer":"Their preferred paddle setup is registered as Standard Paddle.","answer_detail":"Paddle specifications affect power and ball control. Carbon fiber faces provide optimal topspin rotations.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","paddle","gear"]},{"id":"kitchen-positioning","category":"Style","question":"What is Jeff Haynes's net positioning strategy?","title":"Jeff Haynes Net Positioning Strategy","excerpt":"Aligned with their Control rating of 94%.","answer":"They focus on aggressive/soft kitchen lines based on a Control rating of 94%.","answer_detail":"Fast transition from baseline to net minimizes opponents' chances to speed up balls.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","positioning","style"]},{"id":"third-shot-drop-accuracy","category":"Style","question":"What is Jeff Haynes's estimated third shot drop accuracy?","title":"Jeff Haynes Third Shot Drop Accuracy","excerpt":"Aligned with their Control rating score of 94%.","answer":"Their drop accuracy correlates with a Control metric score of 94%.","answer_detail":"Third shot drops must clear the net and drop low into the kitchen to neutralize attacks.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","drop","control"]},{"id":"overhead-smash-power","category":"Style","question":"How powerful is Jeff Haynes's overhead smash?","title":"Jeff Haynes Overhead Smash Power","excerpt":"Aligned with their Power rating score of 74%.","answer":"Their smash velocity aligns with a Power metric score of 74%.","answer_detail":"Smashing high lobs requires precision and power to secure point endings.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","smash","power"]},{"id":"court-coverage-speed","category":"Style","question":"What is Jeff Haynes's court coverage speed?","title":"Jeff Haynes Court Coverage Speed","excerpt":"Aligned with their Agility metric score of 74%.","answer":"Their coverage speed aligns with an Agility metric score of 74%.","answer_detail":"Retrieving deep lobs and angled drives demands high court agility and stamina.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","speed","agility"]},{"id":"topspin-roll-efficiency","category":"Style","question":"How efficient is Jeff Haynes's topspin roll?","title":"Jeff Haynes Topspin Efficiency","excerpt":"Aligned with their Spin metric score of 94%.","answer":"Their topspin roll efficiency aligns with a Spin metric score of 94%.","answer_detail":"Topspin rolls force balls to drop faster after clearing the net, making them hard to smash.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","topspin","spin"]},{"id":"match-play-endurance","category":"Style","question":"How resilient is Jeff Haynes's match play endurance?","title":"Jeff Haynes Match Endurance","excerpt":"Aligned with their Stamina metric score of 74%.","answer":"Their endurance aligns with a Stamina metric score of 74%.","answer_detail":"Consistent play across 3+ set matches requires cardiorespiratory fitness.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","endurance","stamina"]},{"id":"dinking-patience-level","category":"Style","question":"What is Jeff Haynes's dinking patience level?","title":"Jeff Haynes Dinking Patience","excerpt":"Aligned with their Control rating score of 94%.","answer":"They show high dinking patience, matching a Control metric score of 94%.","answer_detail":"Patience near the non-volley zone forces opponents to make mistakes first.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","dinking","control"]},{"id":"drive-velocity-estimate","category":"Style","question":"What is Jeff Haynes's estimated baseline drive velocity?","title":"Jeff Haynes Baseline Drive Velocity","excerpt":"Aligned with their Power rating score of 74%.","answer":"Their drive velocity is estimated based on their Power metric score of 74%.","answer_detail":"Aggressive baseline drives create openings for partners to step up to the net.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","drive","power"]},{"id":"best-partner","category":"Chemistry","question":"Who is Jeff Haynes's best doubles partner?","title":"Jeff Haynes Best Teammate Chemistry","excerpt":"Top partner: Donna Tarlton (DUPR: 4.30).","answer":"Their best partner is Donna Tarlton (DUPR rating: 4.30) with a chemistry score of 76%.","answer_detail":"Teammate chemistry is derived from GPN match logs and victory ratios.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","partner","chemistry"]},{"id":"partner-match-count","category":"Chemistry","question":"How many matches has Jeff Haynes played with their best partner?","title":"Jeff Haynes Team Match Count","excerpt":"Played 16 matches together.","answer":"They have logged 16 matches together with their top partner.","answer_detail":"High team match counts establish reliable court communication and positioning setups.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","chemistry","matches"]},{"id":"average-partner-dupr","category":"Chemistry","question":"What is the average rating of Jeff Haynes's partners?","title":"Jeff Haynes Average Teammate Rating","excerpt":"Average partner DUPR: 4.15.","answer":"The average doubles DUPR of their partners is 4.15.","answer_detail":"Teammate averages indicate the general skill tier of their doubles network.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","partner","average"]},{"id":"average-opponent-dupr","category":"Chemistry","question":"What is the average DUPR of Jeff Haynes's opponents?","title":"Jeff Haynes Average Opponent Rating","excerpt":"Average opponent DUPR: 4.13.","answer":"The average doubles DUPR of their opponents is 4.13.","answer_detail":"Opponent rating averages measure the difficulty of schedule ladders they face.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","opponent","average"]},{"id":"is-beginner-friendly-partner","category":"Chemistry","question":"Is Jeff Haynes a beginner-friendly partner?","title":"Jeff Haynes Beginner Compatibility","excerpt":"Based on doubles rating: 3.717.","answer":"They are beginner-friendly if their doubles rating is below 3.50. Their rating is 3.717.","answer_detail":"Players above 4.00 focus on fast-paced, competitive tournament sets. Novices should match with players under 3.50.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","beginner","compatibility"]},{"id":"partner-selection-logic","category":"Chemistry","question":"How is the best partner chemistry score calculated?","title":"Partner Chemistry Methodology","excerpt":"Calculated from team win rate 76%.","answer":"Partner chemistry is calculated from shared match count and team win rate (76%).","answer_detail":"Higher chemistry represents matches played together and winning setups in GPN tournaments.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","partner","methodology"]},{"id":"partner-match-win-rate","category":"Chemistry","question":"What is the team win rate with Jeff Haynes's best partner?","title":"Jeff Haynes Team Win Rate","excerpt":"Winning rate details are logged in chemistry statistics.","answer":"Their team win rate with their best partner is aligned with their chemistry index.","answer_detail":"High team win rates suggest complementary playstyles, such as combining power with net control.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","win-rate","chemistry"]},{"id":"mixed-doubles-experience","category":"Chemistry","question":"Does Jeff Haynes have mixed doubles match experience?","title":"Jeff Haynes Mixed Doubles Experience","excerpt":"Compiled from their DUPR match logs.","answer":"Yes, they play mixed doubles depending on tournament setups in Myrtle Beach, SC, US.","answer_detail":"Mixed doubles brackets require strategic coordination regarding court coverage and kitchen targets.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","mixed-doubles","chemistry"]},{"id":"teammate-alignment-style","category":"Chemistry","question":"How does Jeff Haynes align with their partners' playstyles?","title":"Jeff Haynes Teammate Alignment Style","excerpt":"Aligned with a playstyle of Third-Shot Drop Specialist.","answer":"They align with partner setups based on their playstyle of \"Third-Shot Drop Specialist\".","answer_detail":"A player specializing in power complements partners specializing in soft kitchen resets.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","partner","style"]},{"id":"team-communication-etiquette","category":"Chemistry","question":"What is Jeff Haynes's team communication style?","title":"Jeff Haynes Team Communication Style","excerpt":"Estimated from best partner logs.","answer":"They coordinate court calls in doubles play to prevent center-line overlap.","answer_detail":"Clear communication on lobs and middle-court balls prevents unforced positioning errors.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","communication","etiquette"]},{"id":"nearby-restaurants","category":"Dining","question":"What restaurants are nearby Jeff Haynes's home court?","title":"Restaurants Near Jeff Haynes's Home Court","excerpt":"Partner restaurants located around their preferred facility Hardeeville, SC.","answer":"Here are the recommended restaurants near Hardeeville, SC:\n1. **Dong Kee** (1177 Central Pkwy W #16, Mississauga, ON L5C 2B9) - [Dong Kee](https://dongkee.com)\n2. **Congee Queen** (800 Dundas St E, Mississauga, ON L4Y 2B6) - [Congee Queen](https://congeequeengta.com)\n3. **Caterking Dim Sum** (201 City Centre Dr, Mississauga, ON L5B 2T4) - [Caterking Dim Sum](https://caterkingdimsum.com)\n4. **Sumito HK** (10670 Yonge St, Richmond Hill, ON L4C 3C9) - [Sumito HK](https://sumitohk.com)\n5. **9stylesushica.com** - [9stylesushica.com](https://9stylesushica.com)","answer_detail":"These restaurants are selected from our verified fleet database matching the city coordinates of their home facility.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","dining","restaurants"]},{"id":"post-match-dining","category":"Dining","question":"Where is the best dining spot for Jeff Haynes after matches?","title":"Post-Match Dining Near Hardeeville, SC","excerpt":"Dining spots near their preferred court Hardeeville, SC.","answer":"We recommend visiting one of our partner locations near Hardeeville, SC:\n1. **Dong Kee** (1177 Central Pkwy W #16, Mississauga, ON L5C 2B9) - [Dong Kee](https://dongkee.com)\n2. **Congee Queen** (800 Dundas St E, Mississauga, ON L4Y 2B6) - [Congee Queen](https://congeequeengta.com)\n3. **Caterking Dim Sum** (201 City Centre Dr, Mississauga, ON L5B 2T4) - [Caterking Dim Sum](https://caterkingdimsum.com)\n4. **Sumito HK** (10670 Yonge St, Richmond Hill, ON L4C 3C9) - [Sumito HK](https://sumitohk.com)\n5. **9stylesushica.com** - [9stylesushica.com](https://9stylesushica.com)","answer_detail":"Grabbing food after sets supports team social bonding and recovery.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","dining","post-match"]},{"id":"partner-restaurants-list","category":"Dining","question":"Are there Chinese or Dim Sum spots near Jeff Haynes's preferred court?","title":"Asian Dining Near Hardeeville, SC","excerpt":"Partner dining list matching Hardeeville, SC.","answer":"Check out these partner venues located near Hardeeville, SC:\n1. **Dong Kee** (1177 Central Pkwy W #16, Mississauga, ON L5C 2B9) - [Dong Kee](https://dongkee.com)\n2. **Congee Queen** (800 Dundas St E, Mississauga, ON L4Y 2B6) - [Congee Queen](https://congeequeengta.com)\n3. **Caterking Dim Sum** (201 City Centre Dr, Mississauga, ON L5B 2T4) - [Caterking Dim Sum](https://caterkingdimsum.com)\n4. **Sumito HK** (10670 Yonge St, Richmond Hill, ON L4C 3C9) - [Sumito HK](https://sumitohk.com)\n5. **9stylesushica.com** - [9stylesushica.com](https://9stylesushica.com)","answer_detail":"Our fleet directory indexes various culinary categories including Chinese, Hot Pot, and Cafe locations.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","dining","chinese"]},{"id":"dining-options-transit","category":"Dining","question":"How accessible are the dining spots near Jeff Haynes's home court?","title":"Dining Accessibility Near Hardeeville, SC","excerpt":"Accessibility of restaurants near Hardeeville, SC.","answer":"The partner restaurants near Hardeeville, SC offer convenient access with parking or transit routes:\n1. **Dong Kee** (1177 Central Pkwy W #16, Mississauga, ON L5C 2B9) - [Dong Kee](https://dongkee.com)\n2. **Congee Queen** (800 Dundas St E, Mississauga, ON L4Y 2B6) - [Congee Queen](https://congeequeengta.com)\n3. **Caterking Dim Sum** (201 City Centre Dr, Mississauga, ON L5B 2T4) - [Caterking Dim Sum](https://caterkingdimsum.com)\n4. **Sumito HK** (10670 Yonge St, Richmond Hill, ON L4C 3C9) - [Sumito HK](https://sumitohk.com)\n5. **9stylesushica.com** - [9stylesushica.com](https://9stylesushica.com)","answer_detail":"Most partner spots feature dedicated parking spaces, ideal for groups visiting after court games.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","dining","accessibility"]},{"id":"recommended-cafe-nearby","category":"Dining","question":"Is there a cafe near Jeff Haynes's preferred court?","title":"Cafes Near Hardeeville, SC","excerpt":"Cafe locations near Hardeeville, SC.","answer":"For coffee or tea post-game, visit these partner sites near Hardeeville, SC:\n1. **Dong Kee** (1177 Central Pkwy W #16, Mississauga, ON L5C 2B9) - [Dong Kee](https://dongkee.com)\n2. **Congee Queen** (800 Dundas St E, Mississauga, ON L4Y 2B6) - [Congee Queen](https://congeequeengta.com)\n3. **Caterking Dim Sum** (201 City Centre Dr, Mississauga, ON L5B 2T4) - [Caterking Dim Sum](https://caterkingdimsum.com)\n4. **Sumito HK** (10670 Yonge St, Richmond Hill, ON L4C 3C9) - [Sumito HK](https://sumitohk.com)\n5. **9stylesushica.com** - [9stylesushica.com](https://9stylesushica.com)","answer_detail":"These locations are ideal for coordinating upcoming tournament schedules with teammates.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","dining","cafe"]},{"id":"api-raw-json","category":"Developers","question":"Where can AI agents fetch raw JSON data for Jeff Haynes?","title":"Machine-Readable JSON API for Jeff Haynes","excerpt":"Retrieve details from GET /api/knowledge/player-jeff-haynes-3YN7MG.","answer":"AI agents can fetch structured JSON data at GET https://picklegravity.com/api/knowledge/player-jeff-haynes-3YN7MG or Markdown summaries at GET https://picklegravity.com/api/knowledge/player-jeff-haynes-3YN7MG?format=md.","answer_detail":"The endpoint returns name, DUPR rating details, match counts, and partner chemistry metrics, optimizing read layouts for Large Language Models.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","api","developers"]},{"id":"download-markdown-summary","category":"Developers","question":"Where can I download a Markdown career summary for Jeff Haynes?","title":"Markdown Summary download for Jeff Haynes","excerpt":"Fetch summary from the dynamic format endpoint.","answer":"A complete machine-readable Markdown file can be generated dynamically at GET https://picklegravity.com/api/knowledge/player-jeff-haynes-3YN7MG?format=md.","answer_detail":"This summary compiles profile statistics, playstyle metrics, partner chemistry, and historical logs into a structured layout.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","markdown","developers"]},{"id":"sitemap-coverage","category":"Developers","question":"Is Jeff Haynes's FAQ page indexed in the sitemap?","title":"Sitemap Indexing status for Jeff Haynes","excerpt":"Checked against sitemap ID allocations.","answer":"Yes, their FAQ sitemap URL is listed under the dynamic player chunks to ensure GSC coverage.","answer_detail":"Sitemaps index player directories to optimize search visibility for localized sports search queries.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","sitemap","developers"]},{"id":"robots-txt-access","category":"Developers","question":"Can AI search engines crawl Jeff Haynes's profile page?","title":"Robots.txt Crawl Permissions","excerpt":"Permissions allowed under standard directory crawlers.","answer":"Yes, our robots.txt explicitly allows AI crawlers and search indexers to access knowledge subpages.","answer_detail":"Crawl configurations are optimized to prevent server saturation while providing search visibility for sports directories.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","crawler","developers"]},{"id":"agent-readiness-index","category":"Developers","question":"How does this profile comply with the Agent Readiness standard?","title":"Agent Readiness Conformance","excerpt":"Complies with the v2.7.0 structured payload standards.","answer":"This profile conforms to top-tier Agent Readiness protocols, exposing structural JSON-LD schemas and clean Markdown text options.","answer_detail":"Exposing clean text formats prevents LLM hallucination and reduces token consumption during semantic search runs.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","agent-readiness","developers"]},{"id":"points-pct-ratio","category":"Performance","question":"How does Jeff Haynes's points won percentage relate to their DUPR rating?","title":"Jeff Haynes - How does Jeff Haynes's points won percentage relate to their DUPR rating","excerpt":"Details regarding points pct ratio.","answer":"Their points won percentage of 53.08% directly supports their DUPR rating of 3.717.","answer_detail":"Points percentages isolate single point efficiency. Stabilizing points above 50% guarantees upward DUPR adjustments over long match logs.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","performance","points"]},{"id":"points-spread-commentary","category":"Performance","question":"What does the points won percentage suggest about Jeff Haynes's match sets?","title":"Jeff Haynes - What does the points won percentage suggest about Jeff Haynes's match sets","excerpt":"Details regarding points spread commentary.","answer":"With a score of 53.08%, it suggests they play highly competitive sets with close point spreads.","answer_detail":"Close sets keep points percentages clustered near 50%. A high win rate with points near 50% shows a player who excels in clutch moments.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","performance","points"]},{"id":"singles-play-coverage","category":"Performance","question":"What court coverage tactics does Jeff Haynes employ in singles matches?","title":"Jeff Haynes - What court coverage tactics does Jeff Haynes employ in singles matches","excerpt":"Details regarding singles play coverage.","answer":"Based on their singles rating of 0 and Agility of 74%, they focus on rapid baseline-to-kitchen recoveries.","answer_detail":"Singles demand high coverage. Incorporating deep lobs forces opponents to run, creating net openings.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","performance","singles"]},{"id":"singles-rating-accuracy","category":"Performance","question":"How accurate is the 0 singles DUPR rating for Jeff Haynes?","title":"Jeff Haynes - How accurate is the 0 singles DUPR rating for Jeff Haynes","excerpt":"Details regarding singles rating accuracy.","answer":"The accuracy depends on the singles reliability score, which is currently recorded as 0%.","answer_detail":"Reliability above 50% represents solid match counts. If the value is low, treat the rating as an estimate.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","performance","singles"]},{"id":"rating-adjustments-wins","category":"Performance","question":"How much does Jeff Haynes's DUPR rating increase after a win?","title":"Jeff Haynes - How much does Jeff Haynes's DUPR rating increase after a win","excerpt":"Details regarding rating adjustments wins.","answer":"Rating increases depend on opponents' ratings (currently averaging 4.13 DUPR) and rating half-life.","answer_detail":"Beating opponents rated higher than their current doubles rating of 3.717 yields larger score increases.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","performance","rating"]},{"id":"rating-adjustments-losses","category":"Performance","question":"How does a match loss impact Jeff Haynes's DUPR rating?","title":"Jeff Haynes - How does a match loss impact Jeff Haynes's DUPR rating","excerpt":"Details regarding rating adjustments losses.","answer":"Loss adjustments are minimized if opponents average 4.13 DUPR, which is close to their rating band.","answer_detail":"Losing to highly-rated opponents results in negligible drops. Losing to lower-rated opponents causes larger decreases.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","performance","rating"]},{"id":"clutch-performance-wins","category":"Performance","question":"How does Jeff Haynes perform in tournament final rounds?","title":"Jeff Haynes - How does Jeff Haynes perform in tournament final rounds","excerpt":"Details regarding clutch performance wins.","answer":"Based on 172 total career wins, they show strong capability in closing out critical tournament sets.","answer_detail":"Final rounds require high mental focus. Regular league play develops the stamina needed to perform in final sets.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","performance","clutch"]},{"id":"matchup-balance-factor","category":"Performance","question":"What is the matchup balance factor for Jeff Haynes's games?","title":"Jeff Haynes - What is the matchup balance factor for Jeff Haynes's games","excerpt":"Details regarding matchup balance factor.","answer":"Their games show high balance, with opponent ratings averaging 4.13 DUPR.","answer_detail":"Playing against balanced opposition ensures rating reliability increases steadily without sharp fluctuations.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","performance","matchup"]},{"id":"points-efficiency-analysis","category":"Performance","question":"What is Jeff Haynes's point winning efficiency during service games?","title":"Jeff Haynes - What is Jeff Haynes's point winning efficiency during service games","excerpt":"Details regarding points efficiency analysis.","answer":"Their service game efficiency correlates with their overall win rate of 57.0%.","answer_detail":"Server advantages are crucial. Strong serves allow teams to dominate the net early in the rally.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","performance","points"]},{"id":"kitchen-play-dominance","category":"Performance","question":"How dominant is Jeff Haynes's kitchen play?","title":"Jeff Haynes - How dominant is Jeff Haynes's kitchen play","excerpt":"Details regarding kitchen play dominance.","answer":"Their kitchen play dominance is supported by a Control rating score of 94%.","answer_detail":"Dominance is established by forcing opponent unforced errors through precise roll dinks.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","performance","kitchen"]},{"id":"expanded-metric-question-11","category":"Performance","question":"How does Jeff Haynes's performance rating score affect their matchup choices (No. 11)?","title":"Jeff Haynes Performance Matchup Guide 11","excerpt":"Analysis of GPN matchup factors for Jeff Haynes under index 11.","answer":"Their Performance metrics align with active GPN rosters in Myrtle Beach, SC, US, ensuring fair matchup coordinates.","answer_detail":"Match quality scores track doubles ratings to maintain balanced standings in league tables.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","performance","metric-11"]},{"id":"expanded-metric-question-12","category":"History","question":"How does Jeff Haynes's history rating score affect their matchup choices (No. 12)?","title":"Jeff Haynes History Matchup Guide 12","excerpt":"Analysis of GPN matchup factors for Jeff Haynes under index 12.","answer":"Their History metrics align with active GPN rosters in Myrtle Beach, SC, US, ensuring fair matchup coordinates.","answer_detail":"Match quality scores track doubles ratings to maintain balanced standings in league tables.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","history","metric-12"]},{"id":"expanded-metric-question-13","category":"Style","question":"How does Jeff Haynes's style rating score affect their matchup choices (No. 13)?","title":"Jeff Haynes Style Matchup Guide 13","excerpt":"Analysis of GPN matchup factors for Jeff Haynes under index 13.","answer":"Their Style metrics align with active GPN rosters in Myrtle Beach, SC, US, ensuring fair matchup coordinates.","answer_detail":"Match quality scores track doubles ratings to maintain balanced standings in league tables.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","style","metric-13"]},{"id":"expanded-metric-question-14","category":"Activity","question":"How does Jeff Haynes's activity rating score affect their matchup choices (No. 14)?","title":"Jeff Haynes Activity Matchup Guide 14","excerpt":"Analysis of GPN matchup factors for Jeff Haynes under index 14.","answer":"Their Activity metrics align with active GPN rosters in Myrtle Beach, SC, US, ensuring fair matchup coordinates.","answer_detail":"Match quality scores track doubles ratings to maintain balanced standings in league tables.","last_verified":"2026-04-26","source_urls":["https://mydupr.com"],"tags":["player","activity","metric-14"]}],"data":{"dupr_id":"3YN7MG","full_name":"Jeff Haynes","gender":"MALE","age":72,"location":"Myrtle Beach, SC, US","profile_pic_url":null,"ratings":{"singles":null,"singles_reliability":0,"doubles":3.717,"doubles_reliability":91},"career":{"total_matches":302,"wins":172,"losses":130,"avg_points_won_pct":53.08,"avg_partner_dupr":4.15,"avg_opponent_dupr":4.13,"preferred_court":"Hardeeville, SC"},"stats":{"sos":4.102,"clutch_index":0,"dpg":-6.5,"home_club":{"id":"club-coastal-sc-dupr-flex-leagues-7895752580","name":"Coastal SC DUPR Flex Leagues"}},"playstyle":{"power":74,"control":94,"agility":74,"spin":94,"stamina":74,"playstyle":"Third-Shot Drop 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