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Sean O'Brien

— year-end
46 matches · 41W–5L · seasons 2025–2026

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Match history46 matches
W
2026-09-07 · NSiens/JChung (Life Time) · #2 Doubles · 7.5 · with David Greer
expectation pending — we’re still fetching an opponent’s record
6-4, 6-4
W
2026-08-27 · NSiens/JChung (Life Time) · #1 Doubles · 7.5 · with Sean Karasik
expectation pending — we’re still fetching an opponent’s record
6-1, 6-0
W
2026-08-24 · NSiens/JChung (Life Time) · #2 Doubles · 7.5 · with David Greer
expectation pending — we’re still fetching an opponent’s record
6-4, 6-3
W
2026-08-20 · NSiens/JChung (Life Time) · #3 Doubles · 7.5 · with David Greer
expectation pending — we’re still fetching an opponent’s record
4-6, 6-1, 1-0
W
2026-08-03 · NSiens (Life Time) · #1 Doubles · 4.0 · with Naomi O'Brien mixed
doesn’t count toward your NTRP rating
1-6, 7-6, 1-0
L
2026-08-03 · NSiens/JChung (Life Time) · #1 Doubles · 7.5 · with Jinwook Chung
expectation pending — we’re still fetching an opponent’s record
2-6, 2-6
W
2026-07-22 · SHamer (Olde Providence) · #2 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
6-1, 6-0
W
2026-07-16 · NSiens (Life Time) · #1 Doubles · 4.0 · with Naomi O'Brien mixed
doesn’t count toward your NTRP rating
7-5, 6-4
W
2026-07-09 · NSiens (Life Time) · #2 Doubles · 4.0 · with Naomi O'Brien mixed
doesn’t count toward your NTRP rating
6-2, 7-5
W
2026-07-08 · SHamer (Olde Providence) · #2 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
6-3, 6-1
W
2026-07-07 · SHamer (Olde Providence) · #2 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
6-4, 6-0
W
2026-06-25 · NSiens (Life Time) · #2 Doubles · 4.0 · with Anna Kamenova mixed
doesn’t count toward your NTRP rating
6-2, 6-4
Teams26 teams · 2024–2026
Over timerating by season, and how you rank
By level5 levels played
3.0
3W–0L
not enough matches yet
4.0
91.3%
21W–2L · 70.3% of games
7.5
91.7%
11W–1L · 64.7% of games
8.5
50%
2W–2L · 47.1% of games
4.0mixed
100%
4W–0L · 58% of games

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

By lineusually #1 Doubles, 37% of the time
#1 Doubles
37%
17 matches
#2 Singles
26%
12 matches
#2 Doubles
17%
8 matches
#1 Singles
13%
6 matches
#3 Doubles
4%
2 matches
#3 Singles
2%
1 match

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.

Tennis is a perfect combination of violent action taking place in an atmosphere of total tranquillity.
Billie Jean King