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Johonna Katz

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Portola Valley, CA
3.5C year-end 2025
i
Computer — generated by the USTA algorithm from match play
36 matches · 26W–10L · seasons 2019–2026
Match history36 matches
L
2026-01-26 · ALPINE HILLS 40AW3.5A-DT · #1 Doubles · 3.5 · with Shannon Basch
loading the estimate
3-6, 6-1, 0-1
W
2025-05-01 · ALPINE HILLS 18AW3.5A-DT · #2 Doubles · 3.5 · with Hayley Bakken
loading the estimate
6-3, 7-5
L
2025-04-25 · ALPINE HILLS 18AW3.5A-DT · #1 Doubles · 3.5 · with Mary Nam
loading the estimate
3-6, 0-6
W
2025-04-18 · ALPINE HILLS 18AW3.5A-DT · #1 Doubles · 3.5 · with Mary Nam
loading the estimate
6-1, 6-1
W
2025-03-11 · ALPINE HILLS 40AW3.5A-DT · #1 Doubles · 3.5 · with Megan O'Reilly-Lewis
loading the estimate
6-0, 6-0
W
2025-03-07 · ALPINE HILLS 40AW3.5A-DT · #1 Singles · 3.5
loading the estimate
6-3, 6-1
W
2025-03-03 · ALPINE HILLS 40AW3.5A-DT · #1 Doubles · 3.5 · with Shannon Basch
loading the estimate
6-3, 6-3
W
2025-02-28 · ALPINE HILLS 40AW3.5A-DT · #1 Doubles · 3.5 · with Shannon Basch
loading the estimate
6-3, 6-0
L
2024-10-25 · ALPINE HILLS CW6.5A-DT · #2 Doubles · 6.5 · with Kate Fenwick
doesn’t count toward your NTRP rating
4-6, 4-6
L
2024-05-07 · ALPINE HILLS 18AW3.5A-DT · #1 Doubles · 3.5 · with Mary Nam
loading the estimate
4-6, 4-6
W
2024-04-30 · ALPINE HILLS 18AW3.5A-DT · #1 Doubles · 3.5 · with Shea Boitano
loading the estimate
6-2, 6-4
L
2024-04-11 · ALPINE HILLS 18AW3.5A-DT · #1 Doubles · 3.5 · with Tiffany Truong
loading the estimate
3-6, 2-6
Where you rank locallyagainst everyone at your level
Teams23 teams · 2019–2026
Over timerating by season, and how you rank
By level5 levels played
3.0
75%
3W–1L · 65% of games
3.5
72.7%
16W–6L · 61.1% of games
5.5
2W–0L
not enough matches yet
6.5
57.1%
4W–3L · 57% of games
7.5
1W–0L
not enough matches yet

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

By lineusually #1 Doubles, 47% of the time
#1 Doubles
47%
17 matches
#2 Doubles
22%
8 matches
#1 Singles
14%
5 matches
#3 Doubles
11%
4 matches
#2 Singles
6%
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.

Success is a journey, not a destination. The doing is often more important than the outcome.
Arthur Ashe