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Brian O'Sullivan

Littleton, CO
3.5C year-end 2025
i
Computer — generated by the USTA algorithm from match play
34 matches · 17W–17L · seasons 2024–2026

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Match history34 matches
L
2026-08-18 · CR-DC NAVY · #1 Singles · 3.5
expectation pending — we’re still fetching an opponent’s record
4-6, 6-4, 0-1
W
2026-08-11 · CR-DC NAVY · #1 Singles · 3.5
expectation pending — we’re still fetching an opponent’s record
6-1, 6-4
W
2026-08-04 · CR-DC NAVY · #1 Doubles · 3.5 · with Derek Mullner
expectation pending — we’re still fetching an opponent’s record
3-6, 6-3, 1-0
L
2026-07-21 · CR-DC NAVY · #1 Singles · 3.5
expectation pending — we’re still fetching an opponent’s record
5-7, 5-7
L
2026-07-14 · DCHS RED · #1 Singles · 3.5
expectation pending — we’re still fetching an opponent’s record
6-7, 2-6
L
2026-07-07 · DCHS RED · #1 Doubles · 3.5 · with Tom Dutcher
expectation pending — we’re still fetching an opponent’s record
7-5, 5-7, 0-1
L
2026-06-30 · DCHS RED · #2 Doubles · 3.5 · with Barry Shockley
expectation pending — we’re still fetching an opponent’s record
6-0, 5-7, 0-1
W
John Belcher / Brandon Dale
2026-06-23 · DCHS RED · #1 Doubles · 3.5 · with John Dyer
expectation pending — we’re still fetching an opponent’s record
6-2, 5-7, 1-0
W
2026-06-16 · DCHS RED · #1 Singles · 3.5
expectation pending — we’re still fetching an opponent’s record
6-2, 6-1
L
2026-06-02 · DCHS RED · #2 Doubles · 3.5 · with Derek Mullner
expectation pending — we’re still fetching an opponent’s record
7-5, 3-6, 1-0
W
2026-05-26 · DCHS GOLD · #1 Singles · 3.5
expectation pending — we’re still fetching an opponent’s record
6-3, 6-4
W
2026-05-19 · DCHS GOLD · #1 Singles · 3.5
expectation pending — we’re still fetching an opponent’s record
6-0, 6-2
Where you rank locallyagainst everyone at your level
Teams12 teams · 2023–2026
CR-DC NAVY
2026 CTA TWILIGHT - DEN · MEN 3.5 - TWILIGHT
2026
DCHS GOLD
2026 USTA ADULT 18 & OVER - DEN · MEN 3.5 - 18 & OVER · 18+
2026
DCHS RED
2026 USTA ADULT 40 & OVER - DEN · MEN 3.5 - 40 & OVER · 40+
2026
Over timerating by season, and how you rank
By level1 levels played
3.5
50%
17W–17L · 55.2% of games

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

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.

I don’t want to be somebody else. I want to be myself and win in my way.
Rafael Nadal