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Grainne Koeberl

Portland, OR
3.0C year-end 2025
121 matches · 56W–65L · seasons 20232026
Bump probability
2.53.03.5lowhigh

Where this rating stands today. Taller means more likely. The dashed lines are the band edges, and the three shaded areas are the three percentages below.

2.94
estimated dynamic rating
Where the rating sits now, on 46 matches this season · USTA never publishes this number
0%
down to 2.5
78%
stay 3.0
22%
up to 3.5
Projected to December: 0% down · 95% stay · 5% up, from a year-end estimate of 2.87. Lower than today’s 2.94 because form regresses — players this far into their band partway through a season have historically finished nearer the middle of it. Keep playing at this level and the numbers above are the ones that hold.

A 3.0 runs from 2.51 to 3.00. This rating sits in the top of the band, and every match moves it.

Our estimate, not a USTA figure — scale measured at this point of 2023 on 2160 players. Graded publicly in December when USTA publishes year-end ratings. It moves when you play, and occasionally when we improve the model.

Where you rank
Portland · 3.0
114 of 357
OR · 3.0
185 of 600

Grainne is ranked among players at the same level in the same place, by our estimated dynamic rating — not the published level, which is the same for everyone in the band. Groups smaller than five are not ranked, because a placing out of two is noise dressed as standing.

Teams34 teams · 2023–2027
THPRD-Sienko/Morris
2027 Adult 55 & Over · 6.0 Women
2027
SAC-Boyce
2027 Adult 55 & Over · 7.0 Women
2027
SAC-Smith
2027 Mixed 18 & Over · 6.0 Mixed
2027
SAC-Koeberl
2026 Adult 55 & Over · 6.0 Women
2026
SAC-Ko
2026 Mixed 18 & Over · 7.0 Mixed
2026
SAC-Wang/Watson
2026 Mixed 40 & Over · 6.0 Mixed
2026
Over timerating by season, and how you rank
Rating by season

Grainne has played at 2.5, 3.0 across 4 seasons — 1 move up and 0 down.

2.02.53.02023202420252026

The line is our estimate; the horizontal lines are level boundaries, so crossing one is a bump. Hollow points are years we inferred from the level played the following season, because USTA publishes a current rating but no history.

How you rank at your level
At 3.0, Grainne has gone from the 9th to the 49th percentile of players at that level, 2024 to 2026.

Percentile compares the same level in the same season, by share of games won. Mixed is shown for context — USTA rules exclude it from your adult rating unless mixed is all you play.

By level8 levels played
2.5
80%
16W–4L · 64.1% of games
3.0
40%
16W–24L · 47% of games
3.5
42.9%
3W–4L · 48.3% of games
6.0
40%
2W–3L · 49.5% of games
7.0
100%
4W–0L · 65.2% of games
2.5mixed
1W–1L
not enough matches yet
6.0mixed
22.7%
5W–17L · 42.4% of games
7.0mixed
70%
7W–3L · 55.4% of games

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

Match history121 matches
L
2026-07-29 · Greenberg Koeberl · #1 Doubles · 3.0 · with Lara Greenberg
0.021below expectation — took 29% of games against 42% expected
6-2, 6-3
L
2026-07-27 · Greenberg Koeberl · #1 Doubles · 3.0 · with Lara Greenberg
0.038below expectation — took 25% of games against 46% expected
6-3, 6-1
W
2026-07-26 · Greenberg Koeberl · #1 Doubles · 3.0 · with Lara Greenberg
+0.001better than expected — took 80% of games against 70% expected
6-2, 6-1
W
2026-07-26 · SAC-Boyce · #2 Doubles · 7.0 · with Martin von Haartman
+0.000about as expected — took 71% of games against 66% expected
6-1, 6-4
W
2026-07-25 · Greenberg Koeberl · #1 Doubles · 3.0 · with Lara Greenberg
+0.004better than expected — took 71% of games against 64% expected
6-1, 6-4
L
2026-07-25 · SAC-Wang/Watson · #2 Doubles · 6.0 · with Jonathan Chun
+0.000below expectation — took 41% of games against 54% expected
6-2, 6-7, 1-0
L
2026-07-20 · Greenberg Koeberl · #1 Doubles · 3.0 · with Lara Greenberg
0.041below expectation — took 25% of games against 47% expected
6-2, 6-2
W
Krista Lowen / Chris Lowenmixed
2026-07-18 · SAC-Boyce · #2 Doubles · 7.0 · with Jonathan Lo
+0.000better than expected — took 56% of games against 31% expected
6-2, 3-6, 1-0
L
Kimberlee Salmond
2026-06-28 · #1 Singles · 3.0
0.054below expectation — took 29% of games against 56% expected
6-3, 6-2
W
Kathleen Cooney / Patrick Cooneymixed
2026-06-27 · SAC-Wang/Watson · #2 Doubles · 6.0 · with Paul Koenigsberg
+0.000better than expected — took 92% of games against 47% expected
6-1, 6-0
W
2026-06-25 · #1 Singles · 3.0
0.003about as expected — took 61% of games against 60% expected
4-6, 6-1, 1-0
L
Andreea Cadar / Sumner Robinsonmixed
2026-06-14 · SAC-Wang/Watson · #1 Doubles · 6.0 · with Daniel Rousseau
+0.000below expectation — took 48% of games against 59% expected
6-4, 4-6, 1-0
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