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John Hackbert

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Novato, CA
4.5C year-end 2025
i
Computer — generated by the USTA algorithm from match play
74 matches · 35W–39L · seasons 2021–2026
Match history74 matches
L
2026-06-07 · NOVATO TC/PIONEER PK 18AM5.0A · #1 Doubles · 5.0 · with Adam Mernit
loading the estimate
6-7, 4-6
L
2026-06-06 · NOVATO TC/PIONEER PK 18AM5.0A · #1 Doubles · 5.0 · with Adam Mernit
loading the estimate
2-6, 1-6
L
2026-05-30 · NOVATO TC/PIONEER PK 18AM5.0A · #1 Doubles · 5.0 · with David Mullarkey
loading the estimate
6-3, 2-6, 0-1
L
2026-05-16 · ROLLING HILLS 18AM4.5A · #1 Doubles · 4.5 · with David Mullarkey
loading the estimate
0-6, 3-6
L
2026-05-07 · NOVATO TC/PIONEER PK 18AM5.0A · #1 Doubles · 5.0 · with Ryan Smith
loading the estimate
6-7, 4-6
L
2026-04-25 · NOVATO TC/PIONEER PK 18AM5.0A · #1 Doubles · 5.0 · with Ryan Smith
loading the estimate
3-6, 4-6
W
2025-06-14 · PIONEER PK 18AM5.0A · #1 Doubles · 5.0 · with Adam Mernit
loading the estimate
6-4, 6-3
L
2025-05-31 · PIONEER PK 18AM5.0A · #1 Doubles · 5.0 · with Ryan Smith
loading the estimate
5-7, 2-6
W
2025-05-29 · ROHNERT PK TC/MAGNOLIA/M PK 18AM4.5A · #2 Doubles · 4.5 · with Antonio Vigil
loading the estimate
6-1, 6-3
L
2025-05-18 · PIONEER PK 18AM5.0A · #1 Doubles · 5.0 · with Adam Mernit
loading the estimate
4-6, 7-5, 0-1
L
2025-05-10 · PIONEER PK 18AM5.0A · #1 Doubles · 5.0 · with David Halleck
loading the estimate
2-6, 6-3, 0-1
W
2025-04-30 · ROHNERT PK TC/MAGNOLIA/M PK 18AM4.5A · #1 Doubles · 4.5 · with Jake Lam
loading the estimate
6-4, 6-1
Where you rank locallyagainst everyone at your level
Teams15 teams · 2021–2026
Over timerating by season, and how you rank
By level5 levels played
4.5
70%
14W–6L · 56% of games
5.0
27.3%
6W–16L · 43.2% of games
8.5
40%
4W–6L · 48.7% of games
9.5
22.2%
2W–7L · 45.9% of games
9.0mixed
1W–2L
not enough matches yet

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

By lineusually #1 Doubles, 50% of the time
#1 Doubles
50%
37 matches
#2 Doubles
24%
18 matches
Singles
14%
10 matches
#3 Doubles
7%
5 matches
#1 Singles
3%
2 matches
#2 Singles
3%
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 mostly mental. You win or lose the match before you even go out there.
Venus Williams