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Brian O'Sullivan

Littleton, CO
3.5C year-end 2025
i
Computer — generated by the USTA algorithm from match play
68 matches · 45W–23L · seasons 2022–2026

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Match history68 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
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
Teams15 teams · 2022–2026
Over timerating by season, and how you rank
By level2 levels played
3.0
86.7%
13W–2L · 66.2% of games
3.5
60.4%
32W–21L · 56.6% of games

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

By lineusually #1 Singles, 44% of the time
#1 Singles
44%
30 matches
#1 Doubles
34%
23 matches
#2 Doubles
18%
12 matches
#2 Singles
4%
3 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.

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