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David Zonker

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DENVER, CO
3.5S year-end 2026
i
Self-rated, or a medical appeal
33 matches · 21W–12L · seasons 2019–2026
Match history33 matches
L
2026-09-09 · ARCA RED · #2 Doubles · 7.0 · with Erik Prenzler championship
loading the estimate
3-6, 3-6
L
2026-09-09 · ARCA RED · #3 Doubles · 7.0 · with Mark Kraut championship
loading the estimate
1-6, 0-6
L
2026-09-08 · ARCA RED · #3 Doubles · 7.0 · with H Frederick Weiss championship
loading the estimate
6-1, 5-7, 0-1
W
2026-07-30 · ARCA RED · #3 Doubles · 7.0 · with Randy Welsh
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6-1, 6-0
W
2026-07-16 · ARCA RED · #3 Doubles · 7.0 · with Randy Welsh
loading the estimate
6-1, 6-4
L
2026-07-02 · ARCA RED · #2 Doubles · 7.0 · with H Frederick Weiss
loading the estimate
5-7, 3-6
W
2026-06-25 · ARCA RED · #3 Doubles · 7.0 · with Randy Welsh
loading the estimate
6-0, 6-3
W
2023-07-26 · ARCA RED · #1 Doubles · 7.0 · with David Klein
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-4, 3-6, 1-0
L
2023-07-20 · ARCA RED · #2 Doubles · 7.0 · with H Frederick Weiss
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
1-6, 6-4, 0-1
W
2023-06-28 · ARCA RED · #3 Doubles · 7.0 · with Thomas Anderson
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-0, 6-0
W
2022-09-17 · LTA YELLOW · #3 Doubles · 7.0 · with Jose Antonio Rojas championship
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-3, 6-1
W
2022-09-16 · LTA BLUE · #3 Doubles · 6.0 · with Eli L Flores championship
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-3, 6-1
Where you rank locallyagainst everyone at your level
Teams8 teams · 2019–2026
Over timerating by season, and how you rank
By level2 levels played
6.0
3W–0L
not enough matches yet
7.0
60%
18W–12L · 57.4% of games

Games won matters more than matches won — NTRP adjusts on margins.

By lineusually #1 Doubles, 39% of the time
#1 Doubles
39%
13 matches
#2 Doubles
36%
12 matches
#3 Doubles
24%
8 matches

How often, across every team and every match we hold — including ones that do not count toward a rating. Advanced stats has a court-position table too, and it answers a different question: how well you do there, over matches that count. A team’s own page shows how that one team uses you.

Not affiliated with or endorsed by the USTA. Ratings labelled as published are USTA year-end figures; anything we describe as an estimate is ours, not USTA’s. Match data is from USTA TennisLink.

You always want to win. That is why you play tennis, because you love the sport and try to be the best you can.
Roger Federer