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John Michael Grzan

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Dorado, PR
3.5C year-end 2025
i
Computer — generated by the USTA algorithm from match play
13 matches · 9W–4L · seasons 2025–2026
Match history13 matches
L
2026-04-26 · Dorado Demons - Mark Ross · #4 Doubles · 3.5 · with Bastiaan Janmaat championship
loading the estimate
6-7, 3-6
W
2026-04-25 · Dorado Demons - Mark Ross · #3 Doubles · 3.5 · with Bastiaan Janmaat championship
loading the estimate
7-5, 7-5
W
2026-04-07 · Dorado Demons - Mark Ross · #3 Doubles · 3.5 · with Bastiaan Janmaat
loading the estimate
3-6, 6-4, 1-0
W
2026-03-21 · Dorado Demons - Mark Ross · #1 Doubles · 3.5 · with Bastiaan Janmaat
loading the estimate
7-5, 6-1
W
2026-03-14 · Dorado Demons - Mark Ross · #3 Doubles · 3.5 · with Bastiaan Janmaat
loading the estimate
6-0, 6-2
L
2026-02-28 · Dorado Demons - Mark Ross · #2 Doubles · 3.5 · with Joe Nelson
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2-6, 6-4, 0-1
W
2026-02-22 · Dorado Demons - Mark Ross · #2 Doubles · 3.5 · with Bastiaan Janmaat
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6-3, 6-3
W
2026-02-01 · Dorado Demons - Mark Ross · #3 Doubles · 3.5 · with Rafael Morales
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6-2, 6-4
W
Angel Arroyo / Rafael Nieves Lai
2025-04-24 · Dorado Beach Plantation Mark R · #4 Doubles · 3.5 · with Saleem Josephs championship
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4-6, 6-2, 1-0
W
2025-04-14 · Dorado Beach Plantation Mark R · #3 Doubles · 3.5 · with Saleem Josephs
loading the estimate
6-3, 6-4
L
2025-02-16 · Dorado Beach Plantation Mark R · #4 Doubles · 3.5 · with Jonathan Swanson
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4-6, 6-1, 0-1
W
2025-01-26 · Dorado Beach Plantation Mark R · #1 Doubles · 3.5 · with Mark Ross
loading the estimate
2-6, 6-4, 1-0
Where you rank locallyagainst everyone at your level
Teams2 teams · 2025–2026
Over timerating by season, and how you rank
By level1 level played
3.5
69.2%
9W–4L · 56% of games

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

By lineusually #3 Doubles, 39% of the time
#3 Doubles
39%
5 matches
#2 Doubles
23%
3 matches
#4 Doubles
23%
3 matches
#1 Doubles
15%
2 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.

Tennis is a perfect combination of violent action taking place in an atmosphere of total tranquillity.
Billie Jean King