MatchPoint

Player profile

Quinn O'Brien: estimated dynamic rating

Quinn O'Brien
USTA3.5
NorCal league player
3.41
Estimated dynamic rating
▼ −0.48 this season
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Combo · 2026
5 matches
3.553.413.27
Mar · 3.46
Jun · 3.27
Jun 18 · Doubles−0.05
L R. Wade / J. Forster
1-6,1-6 · with Tom Nguyen
Your combo rating, from combo matches only. It doesn’t move your 3.41.● Won ● Lost · Select a point to see that match.Your whole season is recalculated daily, so earlier points can shift as new results come in.

Current season

18 matches

Published NorCal results in 2026 — 13 scoring, 5 combo or mixed. Combo and mixed don’t affect NTRP ratings.

May 9, 2026 · Doubles

Lost 6-4,5-7,0-1
−0.16

Quinn’s side

Quinn O'Brien
3.41
Scott Pettitt(partner)Currently on MORGAN HILL TC/MORGAN HILL TC CM6.5A
3.48

Opponents

Geraldo CarlosCurrently on CONCORD TC/WILLOW PASS PK CM7.5A
3.33
Luis ElazeguiCurrently on CONCORD TC/WILLOW PASS PK CM7.5A
3.25
Rating 3.89 → 3.73Doubles result

May 8, 2026 · Doubles

Lost 0-6,3-6
−0.13

Quinn’s side

Quinn O'Brien
3.41
Scott Pettitt(partner)Currently on MORGAN HILL TC/MORGAN HILL TC CM6.5A
3.48

Opponents

Calvin LeeCurrently on GOLDMAN TC CM7.5B
3.70
Andrew LokCurrently on GOLDMAN TC CM7.5B
3.57
Rating 4.02 → 3.89Doubles result

May 2, 2026 · Doubles · Combo

Lost 2-6,5-7
−0.10

Quinn’s side

Quinn O'Brien
3.27
Dell Jamora(partner)Currently on GILROY TENNIS CLUB/GILROY TENNIS CTR 55MX7.0A
3.38

Opponents

Gary CunninghamCurrently on BAY CLUB COURTSIDE CM7.5B
3.85
Paul WangCurrently on BAY CLUB COURTSIDE CM6.5A
3.21
Combo rating 3.55 → 3.45Doubles result

Mar 29, 2026 · Doubles · Combo

Lost 3-6,2-6
−0.11

Quinn’s side

Quinn O'Brien
3.27
Sunil Ayyasamy(partner)Currently on MORGAN HILL TC/MORGAN HILL TC 55MX7.0A
3.56

Opponents

Chris JosephCurrently on BAY CLUB SANTA CLARA CM7.5A
3.55
Todd CirataCurrently on BAY CLUB COURTSIDE CM6.5A
3.35
Combo rating 3.46 → 3.36Doubles result

Combo results move their own rating, not your NTRP. USTA computes NTRP from adult singles and doubles only.

Best match
+0.20
Apr 5 vs C. Krinard / A. Hahn
Worst match
−0.13
May 18 vs K. Saxon / V. Libershteyn
Where you started ›3.89
2023 year-end NTRP 4.03.75
Scale calibration+0.14
Season start3.89
Your starting point comes from your official year-end NTRP, not from any third-party rating. The calibration is a fixed shift that puts our scale on the same level as NTRP.
▲
Combo and mixed matches aren’t included. This rating is built from standard men’s and women’s league play only — combo and mixed results feed your separate combo/mixed ratings, not this one.
Updated Nov 4
Year-end re-anchoring
Pulled toward the 2024 year-end level−0.073.82
Pulled toward the 2025 year-end level−0.063.75

More about Quinn

Quinn O'Brien has been a USTA NorCal 3.5 since 2024, after starting at 3.0 in 2008. The estimated dynamic rating is 3.41, down 0.48 this season, with a 8–10 record in 2026 across regular and combo play. Most frequent partner: Scott Pettitt, 12–7 in 19 matches together.

Record

8–10
2026 season, 18 matches
7–3
2025 season, 10 matches
6
Longest winning streak
7–3
Matches that went to a third set or match tiebreak

Partners

Best wins

Against the highest-rated opponents by year-end NTRP, this season and last.

Year-end NTRP, 2008–2026

3.0 in 2008, 3.5 from 2009 to 2017, 4.0 in 2018, 3.5 in 2019, 4.0 from 2020 to 2023 and 3.5 from 2024 to 2026.

MatchPoint's estimated dynamic rating is an independent estimate from published USTA NorCal league results through November 4, 2026. It is not a rating USTA calculates, and MatchPoint is not affiliated with USTA.

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