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Jason Grunberg

Raleigh, NC
4.0C year-end 2025
i
Computer — generated by the USTA algorithm from match play
42 matches · 21W–21L · seasons 2021–2026

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Match history42 matches
L
2026-08-30 · #2 Doubles · 7.5 · with West Ludwig
expectation pending — we’re still fetching an opponent’s record
2-6, 4-6
L
2026-07-29 · Da.Breazeale40S · #3 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
4-6, 7-6, 1-0
W
2026-07-28 · We.Dyke18T · #2 Doubles · 4.0 · with J Barnes Stephenson
expectation pending — we’re still fetching an opponent’s record
4-6, 7-5, 1-0
L
2026-07-11 · Br.Aron18S · #2 Singles · 4.5
expectation pending — we’re still fetching an opponent’s record
1-6, 2-6
W
2026-07-01 · Da.Breazeale40S · #1 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
6-1, 7-6
L
2026-06-26 · Br.Aron18S · #3 Singles · 4.5
expectation pending — we’re still fetching an opponent’s record
1-6, 0-6
L
2026-06-24 · Da.Breazeale40S · #1 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
1-6, 6-7
L
2026-06-16 · We.Dyke18T · #2 Doubles · 4.0 · with Matt Shait
expectation pending — we’re still fetching an opponent’s record
4-6, 6-2, 0-1
L
2026-06-06 · Br.Aron18S · #3 Singles · 4.5
expectation pending — we’re still fetching an opponent’s record
1-6, 6-7
L
2026-06-03 · Br.Aron18S · #3 Singles · 4.5
expectation pending — we’re still fetching an opponent’s record
3-6, 0-6
W
2026-05-14 · Is.Pataki40A · #1 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
6-2, 2-0
W
2026-04-19 · Is.Pataki18A · #1 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
4-6, 6-4, 1-0
Where you rank locallyagainst everyone at your level
Teams21 teams · 2021–2026
Over timerating by season, and how you rank
By level7 levels played
3.5
1W–1L
not enough matches yet
4.0
65.2%
15W–8L · 54.2% of games
4.5
0%
0W–4L · 22.2% of games
7.5
33.3%
2W–4L · 46.6% of games
4.0mixed
0W–3L
not enough matches yet
7.0mixed
2W–0L
not enough matches yet
8.0mixed
1W–1L
not enough matches yet

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

By lineusually #1 Singles, 31% of the time
#1 Singles
31%
13 matches
#2 Doubles
24%
10 matches
#1 Doubles
21%
9 matches
#3 Doubles
12%
5 matches
#3 Singles
10%
4 matches
#2 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