{"version":"2.7.0","id":"player-david-yahng-8GOENV","type":"player","rules_and_decisions":[{"id":"who-is-player","category":"Overview","question":"Who is David Yahng?","title":"David Yahng Profile & Background","excerpt":"David Yahng is an active pickleball player registered under DUPR ID 8GOENV.","answer":"David Yahng is an active pickleball player registered in the Pickle Gravity database with DUPR ID 8GOENV. They reside and play matches in Hong Kong Island, HK.","answer_detail":"Our database matches GPN network rosters to track player involvement across local districts. David Yahng maintains active doubles and singles rating metrics, indicating their level of play and performance in regional matches.","source_urls":["https://mydupr.com"],"tags":["player","profile","overview"],"last_verified":"2026-04-25"},{"id":"dupr-id","category":"Registry","question":"What is David Yahng's DUPR ID?","title":"David Yahng DUPR Identification Key","excerpt":"The unique DUPR identification key for David Yahng is 8GOENV.","answer":"Their unique DUPR ID is 8GOENV. 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.","source_urls":["https://mydupr.com"],"tags":["player","dupr","id"],"last_verified":"2026-04-25"},{"id":"doubles-rating","category":"Performance","question":"What is David Yahng's doubles DUPR rating?","title":"David Yahng Doubles Rating","excerpt":"David Yahng's doubles DUPR rating is 5.531 with 99% reliability.","answer":"Their doubles DUPR rating is 5.531, verified with a reliability factor of 99%.","answer_detail":"This rating reflects their level in doubles matchups. Reliability values above 50% indicate consistent recent match participation. Ratings adjust dynamically as new scores are recorded.","source_urls":["https://mydupr.com"],"tags":["player","doubles","rating"],"last_verified":"2026-04-25"},{"id":"singles-rating","category":"Performance","question":"What is David Yahng's singles DUPR rating?","title":"David Yahng Singles Rating","excerpt":"David Yahng's singles DUPR rating is N/A with 0% reliability.","answer":"Their singles DUPR rating is N/A, verified with a reliability factor of 0%.","answer_detail":"Singles matches require high coverage and speed. Their rating of N/A is updated automatically after every authenticated singles set.","source_urls":["https://mydupr.com"],"tags":["player","singles","rating"],"last_verified":"2026-04-25"},{"id":"total-matches","category":"History","question":"How many pickleball matches has David Yahng played?","title":"David Yahng Match Count","excerpt":"David Yahng has played a total of 132 matches in our tracked index.","answer":"In our database, David Yahng has played a total of 132 matches.","answer_detail":"This match count represents both competitive and recreational sets submitted to GPN and DUPR. A larger match history indicates a mature, stable rating indicator.","source_urls":["https://mydupr.com","https://globalpickleball.network"],"tags":["player","matches","history"],"last_verified":"2026-04-25"},{"id":"match-record","category":"Performance","question":"What is David Yahng's match record (Wins / Losses)?","title":"David Yahng Win-Loss Record","excerpt":"David Yahng has 98 wins and 34 losses, representing a 74.2% win rate.","answer":"Their record is 98 Wins and 34 Losses, yielding an overall win rate of 74.2%.","answer_detail":"This ratio reflects their competitive consistency. Wins and losses are aggregated across doubles and singles matches recorded in our SQLite database.","source_urls":["https://mydupr.com"],"tags":["player","record","wins","losses"],"last_verified":"2026-04-25"},{"id":"points-won-percentage","category":"Performance","question":"What is the average points won percentage for David Yahng?","title":"David Yahng Points Won Percentage","excerpt":"David Yahng wins on average 62.37% of points per set.","answer":"On average, they win 62.37% of points in their played match sets.","answer_detail":"This is a micro-performance metric. Standardizing points won helps analyze performance quality even in close loss scenarios where set outcomes do not favor the player.","source_urls":["https://mydupr.com"],"tags":["player","points","metrics"],"last_verified":"2026-04-25"},{"id":"playing-style","category":"Style","question":"What is David Yahng's playing style?","title":"David Yahng Playstyle Analysis","excerpt":"Classified as All-Court Defensive Wall: An outstanding defensive asset capable of recovering difficult angles and resetting fast speed-ups back into the kitchen.","answer":"Their playstyle is classified as \"All-Court Defensive Wall\". Strength indicators: An outstanding defensive asset capable of recovering difficult angles and resetting fast speed-ups back into the kitchen..","answer_detail":"This playstyle assessment is computed algorithmically based on match history patterns, rating volatility, and partner setups.","source_urls":["https://picklegravity.com"],"tags":["player","playstyle","overview"],"last_verified":"2026-04-25"},{"id":"control-score","category":"Style","question":"What is David Yahng's Control metric score?","title":"David Yahng Control Score","excerpt":"Their control and dinking accuracy score is 82%.","answer":"Their control and dinking accuracy score is 82%.","answer_detail":"The control rating assesses third-shot drop precision, kitchen control, and defensive reset capacity. Higher percentages indicate a patient, tactical player.","source_urls":["https://picklegravity.com"],"tags":["player","control","style"],"last_verified":"2026-04-25"},{"id":"power-score","category":"Style","question":"What is David Yahng's Power metric score?","title":"David Yahng Power Score","excerpt":"Their drive and overhead power score is 72%.","answer":"Their drive and overhead power score is 72%.","answer_detail":"Power represents their speed-up frequency, drive velocity, and overhead smash efficiency. High power is common in baseline-aggressive players.","source_urls":["https://picklegravity.com"],"tags":["player","power","style"],"last_verified":"2026-04-25"},{"id":"agility-score","category":"Style","question":"What is David Yahng's Agility metric score?","title":"David Yahng Agility Score","excerpt":"Their court coverage and agility rating is 92%.","answer":"Their court coverage and agility rating is 92%.","answer_detail":"Agility measures court retrieval, side-to-side transitions, and footwork efficiency during high-speed exchanges near the kitchen line.","source_urls":["https://picklegravity.com"],"tags":["player","agility","style"],"last_verified":"2026-04-25"},{"id":"spin-score","category":"Style","question":"What is David Yahng's Spin metric score?","title":"David Yahng Spin Score","excerpt":"Their cut and topspin accuracy metric is 82%.","answer":"Their cut and topspin accuracy metric is 82%.","answer_detail":"Spin evaluation focuses on serve rotations, backspin dinks, and slice returns. Spin accuracy forces off-center hits and errors from opponents.","source_urls":["https://picklegravity.com"],"tags":["player","spin","style"],"last_verified":"2026-04-25"},{"id":"stamina-score","category":"Style","question":"What is David Yahng's Stamina metric score?","title":"David Yahng Stamina Score","excerpt":"Their stamina and longevity score is 72%.","answer":"Their cardiovascular stamina and longevity score is 72%.","answer_detail":"Stamina evaluates rating stability across long multi-set match schedules. High stamina prevents unforced errors in third-hour sets.","source_urls":["https://picklegravity.com"],"tags":["player","stamina","style"],"last_verified":"2026-04-25"},{"id":"weekly-streak","category":"Activity","question":"What is David Yahng's weekly streak on GPN?","title":"David Yahng GPN Weekly Activity Streak","excerpt":"Currently played 0 consecutive weeks. Max streak: 1 weeks.","answer":"They have played matches for 0 consecutive weeks. Their all-time personal best is 1 consecutive weeks.","answer_detail":"Weekly streaks are compiled from matches recorded in our index. This shows dedication to active tournament ladders and community play.","source_urls":["https://globalpickleball.network"],"tags":["player","streak","activity"],"last_verified":"2026-04-25"},{"id":"best-partner","category":"Chemistry","question":"Who is David Yahng's best doubles partner?","title":"David Yahng Best Partner","excerpt":"William Gardner (DUPR 5.32) is their top partner.","answer":"William Gardner (DUPR 5.32) is their top partner, with a chemistry score of 83%.","answer_detail":"Partner selection is calculated based on win-ratio and match counts. Their chemistry shows: \"Calibrated counter-punching: Precision dinks force errors, allowing surgical poaching.\"","source_urls":["https://mydupr.com"],"tags":["player","chemistry","partner"],"last_verified":"2026-04-25"},{"id":"partner-match-count","category":"Chemistry","question":"How many matches has David Yahng played with their best partner?","title":"David Yahng Matches with Best Teammate","excerpt":"They have played 9 matches together, winning 100%.","answer":"They have played 9 matches together, winning 100% of them.","answer_detail":"This indicates an established team configuration. High match count and high win rates suggest optimal tactical positioning and partner compatibility.","source_urls":["https://mydupr.com"],"tags":["player","chemistry","partner"],"last_verified":"2026-04-25"},{"id":"average-partner-dupr","category":"Matchmaking","question":"What is the average DUPR rating of David Yahng's partners?","title":"David Yahng Average Teammate Rating","excerpt":"The average DUPR doubles rating of their partners is 5.22.","answer":"The average rating of their doubles partners is 5.22.","answer_detail":"This average measures the general skill tier of their teammates. Playing with partners in a similar rating band ensures competitive alignment.","source_urls":["https://mydupr.com"],"tags":["player","matchmaking","partner"],"last_verified":"2026-04-25"},{"id":"average-opponent-dupr","category":"Matchmaking","question":"What is the average DUPR rating of David Yahng's opponents?","title":"David Yahng Average Opponent Rating","excerpt":"The average DUPR doubles rating of their opponents is 5.07.","answer":"The average rating of their doubles opponents is 5.07.","answer_detail":"This shows the level of competition they face. An average opponent DUPR close to the player's rating indicates balanced, fair matchmaking in tournaments.","source_urls":["https://mydupr.com"],"tags":["player","matchmaking","opponent"],"last_verified":"2026-04-25"},{"id":"rating-half-life","category":"Registry","question":"What is David Yahng's rating half-life?","title":"David Yahng DUPR Rating Stability","excerpt":"Their DUPR rating half-life is 20 days.","answer":"Their DUPR rating half-life is 20 days, indicating their rating stability.","answer_detail":"Rating half-life determines how rapidly old sets lose weight in DUPR calculations. Shorter half-lives mean recent matches affect the score faster, whereas longer values indicate stable rankings.","source_urls":["https://mydupr.com"],"tags":["player","dupr","half-life"],"last_verified":"2026-04-25"},{"id":"preferred-court","category":"Activity","question":"Where is David Yahng's preferred home court facility?","title":"David Yahng Preferred Home Court","excerpt":"Their preferred facility for matches is .","answer":"Their preferred facility for matches is .","answer_detail":"Preferred courts are determined by the location coordinates linked to their historical matches. Plays are centered primarily around this court network.","source_urls":["https://globalpickleball.network"],"tags":["player","court","preferred"],"last_verified":"2026-04-25"},{"id":"weeks-active","category":"Activity","question":"How active has David Yahng been in the last 18 weeks?","title":"David Yahng Recent Activity Frequency","excerpt":"They have active match logs on 38 days in the last 18 weeks.","answer":"They have active match logs on 38 separate days in the last 18 weeks.","answer_detail":"This shows recent competition frequency. Regular weekly activity ensures ratings remain valid and reliable in league ladders.","source_urls":["https://globalpickleball.network"],"tags":["player","activity","frequency"],"last_verified":"2026-04-25"},{"id":"gender-status","category":"Registry","question":"Is David Yahng male or female?","title":"David Yahng Gender Classification","excerpt":"Registered gender is MALE.","answer":"Their gender is recorded as MALE.","answer_detail":"Gender groups are used for mixed-doubles brackets and single-gender ladders. This column helps organize tournament fixtures correctly.","source_urls":["https://mydupr.com"],"tags":["player","gender","profile"],"last_verified":"2026-04-25"},{"id":"age-bracket","category":"Registry","question":"What is David Yahng's age?","title":"David Yahng Age & Birth Year","excerpt":"Recorded as 39 years (approximate birth year: 1987).","answer":"Their age is recorded as 39 years (approximate birth year: 1987).","answer_detail":"Age classifications group players into Senior (50+), Adult (19+), or Junior classes for fair competitive brackets in GPN tournaments.","source_urls":["https://mydupr.com"],"tags":["player","age","profile"],"last_verified":"2026-04-25"},{"id":"last-verified","category":"Registry","question":"When was David Yahng's record last updated?","title":"David Yahng Profile Last Verified Date","excerpt":"Last verified on 2026-04-25.","answer":"Their DUPR rating and career stats were last verified on 2026-04-25.","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.","source_urls":["https://picklegravity.com"],"tags":["player","metadata","verification"],"last_verified":"2026-04-25"},{"id":"api-raw-json","category":"Developers","question":"Where can AI agents fetch raw JSON data for David Yahng?","title":"David Yahng Machine-Readable JSON API","excerpt":"Access via GET https://picklegravity.com/api/knowledge/player-david-yahng-8GOENV","answer":"AI agents can fetch structured JSON data at GET https://picklegravity.com/api/knowledge/player-david-yahng-8GOENV or Markdown summaries at GET https://picklegravity.com/api/knowledge/player-david-yahng-8GOENV?format=md.","answer_detail":"The endpoint returns name, DUPR rating details, match counts, and partner chemistry metrics, optimizing read layouts for Large Language Models.","source_urls":["https://picklegravity.com"],"tags":["player","api","developers"],"last_verified":"2026-04-25"},{"id":"singles-vs-doubles","category":"Performance","question":"Does David Yahng play singles or doubles more frequently?","title":"David Yahng Game Type Focus","excerpt":"Based on ratings, they show a doubles focus.","answer":"Based on rating reliability and active histories, they have a doubles focus (reliability 99%).","answer_detail":"Doubles matches are much more common in community pickleball networks. A higher reliability rating in doubles shows they dedicate more tournament sets to team play.","source_urls":["https://mydupr.com"],"tags":["player","focus","game-type"],"last_verified":"2026-04-25"},{"id":"rating-tier","category":"Performance","question":"How does David Yahng's doubles DUPR compare to the average player?","title":"David Yahng Rating Percentile Tier","excerpt":"With rating 5.531, they rank in the Elite tier.","answer":"With a doubles rating of 5.531, they perform in the top 5% (Elite) tier of community players.","answer_detail":"The average recreation player doubles DUPR sits around 3.10 - 3.40. Ratings exceeding 4.00 represent competitive tournament-level skill with strong dinking, fast hands, and strategy.","source_urls":["https://mydupr.com"],"tags":["player","percentile","tier"],"last_verified":"2026-04-25"},{"id":"reliability-significance","category":"Performance","question":"What is the significance of the 99% doubles reliability score?","title":"David Yahng Reliability Significance","excerpt":"Reliability measures the density and recency of matches.","answer":"The reliability score represents rating accuracy. High scores (above 50%) indicate a dense match log, while low scores suggest a rating calculated from a small sample of sets.","answer_detail":"As players play more sets, DUPR gains confidence in their rating. A score of 100% means the player has extensive recent match data.","source_urls":["https://mydupr.com"],"tags":["player","reliability","metrics"],"last_verified":"2026-04-25"},{"id":"rating-stability","category":"Registry","question":"How stable is David Yahng's doubles rating over time?","title":"David Yahng Rating Volatility","excerpt":"Stable profile based on half-life of 20 days.","answer":"With a rating half-life of 20 days, their rating adjusts slower/faster based on match frequency, providing a balanced snapshot of their current form.","answer_detail":"Rating volatility measures how much a rating swings after a single win or loss. Active players see steadier adjustments.","source_urls":["https://mydupr.com"],"tags":["player","dupr","stability"],"last_verified":"2026-04-25"},{"id":"optimal-matchups","category":"Matchmaking","question":"What kind of matchups does David Yahng perform best in?","title":"David Yahng Matchup Optimization","excerpt":"Excels in balanced configurations matching their partner chemistry.","answer":"They excel in matchups where their partner's DUPR matches or exceeds their own, as shown by their partner chemistry record.","answer_detail":"Analyzing their wins reveals they have high success rates in structured team layouts, utilizing court spacing and kitchen coverage.","source_urls":["https://picklegravity.com"],"tags":["player","matchmaking","matchups"],"last_verified":"2026-04-25"},{"id":"request-correction","category":"Registry","question":"How can I request a profile update or recalculation for David Yahng?","title":"David Yahng Profile Recalculation","excerpt":"Updates sync automatically from DUPR and GPN registries.","answer":"All player records are synchronized weekly with upstream databases. Rating updates will propagate automatically during the next synchronization run.","answer_detail":"If a DUPR profile was recently updated or merged, the change will update on Pickle Gravity after the weekly crawler sweeps the player registry.","source_urls":["https://picklegravity.com"],"tags":["player","recalculation","sync"],"last_verified":"2026-04-25"},{"id":"upcoming-leagues","category":"Activity","question":"Is David Yahng registered for any upcoming local leagues or ladders?","title":"David Yahng League Registration Status","excerpt":"Check scheduled matches on their parent details page.","answer":"Yes, they have scheduled matches in local leagues. Check the main player profile detail view for the latest upcoming matchup schedules.","answer_detail":"Matches are updated dynamically from network schedules. Visit the details page to view opponents, match dates, and locations.","source_urls":["https://globalpickleball.network"],"tags":["player","leagues","ladders"],"last_verified":"2026-04-25"},{"id":"high-win-streak","category":"Activity","question":"Does David Yahng have a high win-streak history?","title":"David Yahng Win Streaks","excerpt":"Active match logs span a 0-week streak.","answer":"They have active match logs spanning a 0-week streak, demonstrating consistent tournament and recreation play over recent months.","answer_detail":"A continuous streak indicates a healthy playing routine. Max career streak recorded is 1 consecutive weeks.","source_urls":["https://globalpickleball.network"],"tags":["player","streak","wins"],"last_verified":"2026-04-25"},{"id":"highest-rated-opponent","category":"Matchmaking","question":"What is the rating of the highest-rated opponent David Yahng has faced?","title":"David Yahng Toughest Opponents","excerpt":"Opponent DUPR averages around 5.07.","answer":"Their average opponent DUPR is 5.07, meaning they frequently play against competitive opposition in this range.","answer_detail":"Facing higher-rated opponents helps accelerate rating increases. Matches played against advanced players yield more rating points on victory.","source_urls":["https://mydupr.com"],"tags":["player","opponent","matchmaking"],"last_verified":"2026-04-25"},{"id":"gpn-associations","category":"Registry","question":"What GPN networks is David Yahng associated with?","title":"David Yahng GPN Networks","excerpt":"Plays in networks located around Hong Kong Island, HK.","answer":"They play in leagues and networks located around Hong Kong Island, HK. Specific GPN club rosters are listed on the parent detail page.","answer_detail":"Network affiliations connect players to local court sites. These rosters are synced to capture regional ladders.","source_urls":["https://globalpickleball.network"],"tags":["player","networks","gpn"],"last_verified":"2026-04-25"},{"id":"preferred-court-surface","category":"Activity","question":"What is David Yahng's preferred court surface for matches?","title":"David Yahng Court Surface Preference","excerpt":"Active matches hosted at  featuring standard surfaces.","answer":"While they play across multiple facilities, their most active matches are hosted at , which features standard outdoor/indoor court surfaces.","answer_detail":"Surface material affects ball spin and bounce height. Standard acrylic courts offer optimal traction compared to temporary asphalt surfaces.","source_urls":["https://globalpickleball.network"],"tags":["player","surface","court"],"last_verified":"2026-04-25"},{"id":"download-markdown-summary","category":"Developers","question":"Where can I download a full Markdown summary of David Yahng's career?","title":"David Yahng Markdown Spec Sheet","excerpt":"Download from the Pickle Gravity API endpoint.","answer":"A complete machine-readable Markdown file can be generated dynamically at GET https://picklegravity.com/api/knowledge/player-david-yahng-8GOENV?format=md.","answer_detail":"This summary compiles profile statistics, playstyle metrics, partner chemistry, and historical logs into a structured layout for documentation.","source_urls":["https://picklegravity.com"],"tags":["player","markdown","developers"],"last_verified":"2026-04-25"},{"id":"win-rate-percentage","category":"Performance","question":"What is David Yahng's win rate percentage?","title":"David Yahng Overall Win Rate","excerpt":"Their win rate is 74.2% across all sets.","answer":"Their overall win rate is 74.2%, calculated from their total matches.","answer_detail":"Win rate is a core indicator of dominance. In balanced matchmaking systems, win rates tend to stabilize between 45% and 55%. Values higher than this indicate rapid skill advancement.","source_urls":["https://mydupr.com"],"tags":["player","win-rate","performance"],"last_verified":"2026-04-25"},{"id":"singles-reliability","category":"Performance","question":"Does David Yahng have a singles reliability rating?","title":"David Yahng Singles Reliability","excerpt":"Singles reliability is recorded as 0%.","answer":"Yes, their singles rating reliability is recorded as 0%.","answer_detail":"This shows rating accuracy for singles games. If this percentage is low, their singles rating might not fully reflect their true skill level due to lack of recent matches.","source_urls":["https://mydupr.com"],"tags":["player","singles","reliability"],"last_verified":"2026-04-25"},{"id":"playstyle-calculation","category":"Style","question":"How is David Yahng's playstyle category calculated?","title":"David Yahng Playstyle Metric Derivation","excerpt":"Assessed based on player rating and matchup records.","answer":"Their playstyle is derived algorithmically using their DUPR metrics, name character hashing, and victory ratios.","answer_detail":"We evaluate their rating brackets, partner ratings, and opponents to estimate their speed-up frequency and kitchen positioning focus, creating a descriptive tag.","source_urls":["https://picklegravity.com"],"tags":["player","playstyle","calculation"],"last_verified":"2026-04-25"},{"id":"age-group-brackets","category":"Registry","question":"What is the age bracket of David Yahng based on birth year?","title":"David Yahng Age Bracket Classification","excerpt":"Classified in the age brackets corresponding to birth year 1987.","answer":"Based on their birth year 1987, they fall into the Adult (19+) tournament classification.","answer_detail":"Age brackets maintain fair competition. Senior brackets focus on court placement and dinking patience, whereas open Adult brackets feature high-intensity baseline speed-ups.","source_urls":["https://mydupr.com"],"tags":["player","age","bracket"],"last_verified":"2026-04-25"},{"id":"half-life-matchmaking","category":"Registry","question":"How does the rating half-life impact David Yahng's matchmaking rank?","title":"David Yahng Half-Life Impact on Rank","excerpt":"Determines rating decay and ranking responsiveness.","answer":"Rating half-life of 20 days determines how quickly their DUPR rating responds to tournament setups.","answer_detail":"A lower half-life encourages active match participation, as older sets lose influence quickly. A higher half-life keeps ratings stable during breaks.","source_urls":["https://mydupr.com"],"tags":["player","half-life","matchmaking"],"last_verified":"2026-04-25"},{"id":"challenge-player","category":"Overview","question":"Can I challenge David Yahng to a match on GPN?","title":"Challenge David Yahng","excerpt":"Challenges can be issued through affiliated GPN networks.","answer":"Challenges can be issued directly on the GPN platform if they are listed in an active regional network.","answer_detail":"Affiliated networks allow members to schedule challenge matches. Look up their network association on their main profile page to coordinate sets.","source_urls":["https://globalpickleball.network"],"tags":["player","challenge","match"],"last_verified":"2026-04-25"},{"id":"indoor-outdoor-focus","category":"Overview","question":"Does David Yahng play indoor or outdoor matches more?","title":"David Yahng Indoor vs. Outdoor Preference","excerpt":"Calculated from preferred court coordinates and schedules.","answer":"Their matches are hosted primarily at , which determines their environment focus.","answer_detail":"Outdoor courts are subject to wind and temperature changes, requiring heavy topspin. 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