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Jason Mah

PORTLAND, OR
4.5C year-end 2024
69 matches · 45W–24L · seasons 20202026
Bump probability
4.04.55.0lowhigh

Where this rating stands today. Taller means more likely. The dashed lines are the band edges, and the three shaded areas are the three percentages below.

4.15
estimated dynamic rating
Where the rating sits now, on 8 matches this season · USTA never publishes this number
3%
down to 4.0
97%
stay 4.5
0%
up to 5.0

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

Our estimate, not a USTA figure — scale measured at this point of 2023 on 2160 players. Graded publicly in December when USTA publishes year-end ratings. It moves when you play, and occasionally when we improve the model.

Where you rank
PORTLAND · 4.5
2 of 7
OR · 4.5
75 of 226

Jason is ranked among players at the same level in the same place, by our estimated dynamic rating — not the published level, which is the same for everyone in the band. Groups smaller than five are not ranked, because a placing out of two is noise dressed as standing.

Teams18 teams · 2016–2026
LOTC-Sumoge/Pham
2026 Mixed 18 & Over · 8.0 Mixed
2026
PT&E/SJRC-Truong/Bui
2026 Adult 18 & Over · 4.5 Men
2026
N OR-LOTC-Pham
2025 Mixed 18 & Over · 8.0 Mixed
2025
LOTC-Pham/Chin
2025 Mixed 18 & Over · 9.0 Mixed
2025
PT&E/SJRC-Truong
2024 Adult 18 & Over · 4.5 Men
2024
N OR-LOTC-Cavelti
2024 Mixed 18 & Over · 8.0 Mixed
2024
Over timerating by season, and how you rank
Rating by season

Jason has played at 4.0, 4.5 across 5 seasons — 1 move up and 0 down.

3.54.04.520202021202320242026

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, Jason has gone from the 61st to the 9th percentile of players at that level, 2024 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 level4 levels played
4.0
86.7%
13W–2L · 67.2% of games
4.5
37.5%
6W–10L · 46.6% of games
8.0mixed
52.9%
9W–8L · 53.2% of games
9.0mixed
60%
3W–2L · 57.3% of games

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

Match history69 matches
L
2026-05-31 · PT&E/SJRC-Truong/Bui · #1 Doubles · 4.5 · with Ariel Gomez
+0.003about as expected — took 45% of games against 44% expected
4-6, 6-3, 1-0
L
Khang Chu / Aryan Gupta
2026-05-29 · PT&E/SJRC-Truong/Bui · #2 Doubles · 4.5 · with Issei Saida
+0.003about as expected — took 50% of games against 48% expected
6-2, 1-6, 1-0
L
2026-05-16 · PT&E/SJRC-Truong/Bui · #1 Doubles · 4.5 · with Issei Saida
0.061below expectation — took 8% of games against 42% expected
6-0, 6-1
L
2026-04-17 · PT&E/SJRC-Truong/Bui · #1 Doubles · 4.5 · with Franklin Truong
0.026below expectation — took 25% of games against 41% expected
6-2, 6-2
W
2026-04-12 · PT&E/SJRC-Truong/Bui · #1 Doubles · 4.5 · with Issei Saida
0.017below expectation — took 48% of games against 57% expected
3-6, 7-6, 1-0
W
Kyle Williams / Carmen Mosleymixed
2025-11-22 · LOTC-Sumoge/Pham · #3 Doubles · 8.0 · with Rachel Novak
+0.000better than expected — took 71% of games against 64% expected
6-3, 6-2
W
2025-10-18 · LOTC-Sumoge/Pham · #3 Doubles · 8.0 · with Carolyn Graeper
+0.000better than expected — took 71% of games against 46% expected
6-1, 6-4
L
2025-10-11 · LOTC-Sumoge/Pham · #3 Doubles · 8.0 · with Danica Lee
+0.000about as expected — took 48% of games against 51% expected
4-6, 7-5, 1-0
L
Michael Khounnala / Lisa Smithmixedchamps
2025-07-11 · #2 Doubles · with Danica Lee
mixed — doesn't count toward your NTRP rating
6-3, 6-3
W
2024-12-15 · #3 Doubles · with Carolyn Graeper
mixed — doesn't count toward your NTRP rating
6-4, 7-6
L
Riley Stricker / Irina Ivanovamixed
2024-11-23 · N OR-LOTC-Pham · #1 Doubles · 8.0 · with Catherine Hu
mixed — doesn't count toward your NTRP rating
6-1, 6-4
L
Kaytlynn Kolb / Gunnar Harlanmixed
2024-10-25 · LOTC-Pham/Chin · #3 Doubles · 9.0 · with Shanay Goddard
mixed — doesn't count toward your NTRP rating
6-2, 6-3
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