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Tai Sisson

San Dimas, CA
4.5C year-end 2025
319 matches · 246W–73L · seasons 2021–2026
Bump probability
4.04.55.0lowhigh
Where this rating stands today. Taller means more likely.
i
The dashed lines are the edges of your band. The three shaded areas are exactly the three percentages below — area here is the chance of one outcome for you, not a count of players.
4.08
estimated dynamic rating
Where the rating sits now, on 37 matches this season · USTA never publishes this number
17%
down to 4.0
83%
stay 4.5
0%
up to 5.0
Projected to December: 11% down · 89% stay · 0% up, from a year-end estimate of 4.10. Higher than today’s 4.08 because players this far below their band have historically finished nearer the middle of it.

A 4.5 runs from 4.01 to 4.50. This rating sits in the bottom of the band, and every match moves it.

Our estimate, not a USTA figure.
i
scale measured at this point of 2023 on 2160 players. It moves when you play, and occasionally when we improve the model. USTA publishes year-end ratings in December, which is when this gets graded against what actually happened.
Where you rank
CA · 4.5
114 of 176
By our estimated rating, not the published level.
i
Tai is ranked against players at the same level in the same place. The published level is identical for everyone in a band, so it cannot separate them — our estimate can. Groups smaller than five are not ranked at all, because a placing out of two is noise dressed as standing.
Over timerating by season, and how you rank
Rating by season

Tai has been 4.5 for all 6 seasons on record, but moved a long way inside it — from the bottom of the band to the middle.

4.04.5202120222023202420252026

The line is our estimate; the horizontal lines are level boundaries, so crossing one is a bump. Hollow points are years we inferred from the level played the following season, because USTA publishes a current rating but no history.

How you rank at your level
At 4.5, Tai has gone from the 72nd to the 83rd percentile of players at that level, 2021 to 2026.

Percentile compares the same level in the same season, by share of games won. Mixed is shown for context — USTA rules exclude it from your adult rating unless mixed is all you play.

By level9 levels played
4.5
72.9%
43W–16L · 59% of games
5.0
1W–0L
not enough matches yet
8.0
84.6%
11W–2L · 59.8% of games
9.0
52.6%
10W–9L · 51.2% of games
0.0mixed
100%
5W–0L · 67.8% of games
4.5mixed
80%
4W–1L · 60.5% of games
8.0mixed
85.7%
72W–12L · 62.2% of games
8.5mixed
0W–1L
not enough matches yet
9.0mixed
72.5%
29W–11L · 60.3% of games

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

Match history319 matches
W
Adam Acosta / Adrienne Beauvoismixed
2026-08-01 · #3 Doubles · 8.0 · with Jose Siasoyco
mixed — doesn't count toward your NTRP rating
6-3, 6-1
W
Lisa Fahey / Doreen Brinkman
2026-07-25 · #1 Doubles · 8.0 · with Kate Cameron
expectation pending — we're still fetching an opponent's record
6-4, 6-2
W
Karen Indeglia / Leilani Liley
2026-07-19 · #1 Doubles · 8.0 · with Kate Cameron
expectation pending — we're still fetching an opponent's record
7-6, 1-6, 1-0
L
Andrea Kozak / Jennifer Brawley
2026-07-18 · #2 Doubles · 9.0 · with Stacey McCoy
expectation pending — we're still fetching an opponent's record
7-5, 7-5
W
Jennifer Hoover / Brian O'Learymixed
2026-07-18 · #2 Doubles · 8.0 · with Wei Wang
mixed — doesn't count toward your NTRP rating
6-3, 6-3
W
N/A
2026-07-18 · #3 Doubles · 8.0 · with Yu Liu
expectation pending — we're still fetching an opponent's record
6-0, 6-0
W
Kristina Chen / Vicki Peterson
2026-07-12 · #1 Doubles · 4.5 · with Cindy Shin
expectation pending — we're still fetching an opponent's record
6-3, 6-3
L
Andrea Kozak / Alissa Ahlman
2026-07-11 · #2 Doubles · 9.0 · with Lajla Feichter
expectation pending — we're still fetching an opponent's record
7-5, 4-6, 1-0
W
2026-07-11 · #2 Doubles · 8.0 · with Jose Siasoyco
mixed — doesn't count toward your NTRP rating
6-2, 6-2
W
N/A
2026-06-28 · #3 Doubles · 8.0 · with Kate Cameron
expectation pending — we're still fetching an opponent's record
6-0, 6-0
W
Christopher Aitken / Patricia Fraziermixed
2026-06-27 · #1 Doubles · 9.0 · with Brian Su
mixed — doesn't count toward your NTRP rating
6-2, 6-3
L
2026-06-20 · #3 Doubles · 9.0 · with Jackie Head
expectation pending — we're still fetching an opponent's record
6-2, 6-3
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