Robert Chang — Rules & Decisions Ledger

Robert Chang is an active pickleball player registered in the Pickle Gravity database with DUPR ID QPDJEN. They reside and play matches in San Diego, CA, US.

Their unique DUPR ID is QPDJEN. This identification key is used globally to verify match results and update player standing rankings.

Their doubles DUPR rating is 4.682, verified with a reliability factor of 23%.

Their singles DUPR rating is N/A, verified with a reliability factor of 0%.

In our database, Robert Chang has played a total of 51 matches.

Their record is 41 Wins and 10 Losses, yielding an overall win rate of 80.4%.

On average, they win 61.76% of points in their played match sets.

Their playstyle is classified as "Tactical Baseline Driver". Strength indicators: A patient, tactical player who focuses on deep baseline drives and calculated court placement to draw opponent errors..

Their control and dinking accuracy score is 76%.

Their drive and overhead power score is 66%.

Their court coverage and agility rating is 86%.

Their cut and topspin accuracy metric is 86%.

Their cardiovascular stamina and longevity score is 66%.

They have played matches for 0 consecutive weeks. Their all-time personal best is 2 consecutive weeks.

Jack hay (DUPR 4.90) is their top partner, with a chemistry score of 89%.

They have played 3 matches together, winning 100% of them.

The average rating of their doubles partners is 4.36.

The average rating of their doubles opponents is 4.20.

Their DUPR rating half-life is 4 days, indicating their rating stability.

Their preferred facility for matches is Coronado Island Marriott Resort & Spa.

They have active match logs on 36 separate days in the last 18 weeks.

Their gender is recorded as MALE.

Their age is recorded as 36 years (approximate birth year: 1990).

Their DUPR rating and career stats were last verified on 2026-05-30.

AI agents can fetch structured JSON data at GET https://picklegravity.com/api/knowledge/player-robert-chang-QPDJEN or Markdown summaries at GET https://picklegravity.com/api/knowledge/player-robert-chang-QPDJEN?format=md.

Based on rating reliability and active histories, they have a doubles focus (reliability 23%).

With a doubles rating of 4.682, they perform in the top 5% (Elite) tier of community players.

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.

With a rating half-life of 4 days, their rating adjusts slower/faster based on match frequency, providing a balanced snapshot of their current form.

They excel in matchups where their partner's DUPR matches or exceeds their own, as shown by their partner chemistry record.

All player records are synchronized weekly with upstream databases. Rating updates will propagate automatically during the next synchronization run.

Yes, they have scheduled matches in local leagues. Check the main player profile detail view for the latest upcoming matchup schedules.

They have active match logs spanning a 0-week streak, demonstrating consistent tournament and recreation play over recent months.

Their average opponent DUPR is 4.20, meaning they frequently play against competitive opposition in this range.

They play in leagues and networks located around San Diego, CA, US. Specific GPN club rosters are listed on the parent detail page.

While they play across multiple facilities, their most active matches are hosted at Coronado Island Marriott Resort & Spa, which features standard outdoor/indoor court surfaces.

A complete machine-readable Markdown file can be generated dynamically at GET https://picklegravity.com/api/knowledge/player-robert-chang-QPDJEN?format=md.

Their overall win rate is 80.4%, calculated from their total matches.

Yes, their singles rating reliability is recorded as 0%.

Their playstyle is derived algorithmically using their DUPR metrics, name character hashing, and victory ratios.

Based on their birth year 1990, they fall into the Adult (19+) tournament classification.

Rating half-life of 4 days determines how quickly their DUPR rating responds to tournament setups.

Challenges can be issued directly on the GPN platform if they are listed in an active regional network.

Their matches are hosted primarily at Coronado Island Marriott Resort & Spa, which determines their environment focus.