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Kerstin Anderson

Portland, OR
4.5C year-end 2025
195 matches · 112W–83L · seasons 20192026
Bump probability
4.04.55.0lowhigh

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.

4.11
estimated dynamic rating
Where the rating sits now, on 27 matches this season · USTA never publishes this number
8%
down to 4.0
92%
stay 4.5
0%
up to 5.0
Projected to December: 6% down · 94% stay · 0% up, from a year-end estimate of 4.13. Higher than today’s 4.11 because players this far below their band have historically finished nearer the middle of it.

A 4.5 runs from 4.01 to 4.50. This rating sits in the lower half 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 · 4.5
52 of 119
OR · 4.5
101 of 226

Kerstin 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.

Teams83 teams · 2003–2027
Over timerating by season, and how you rank
Rating by season

Kerstin has been 4.5 for all 8 seasons on record, but moved a long way inside it — from the bottom of the band to the middle.

4.04.520192020202120222023202420252026

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 4.5, Kerstin has gone from the 49th to the 89th percentile of players at that level, 2019 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 level5 levels played
0.0
75%
3W–1L · 57.7% of games
4.5
67.1%
49W–24L · 54.4% of games
9.0
44.4%
4W–5L · 46.6% of games
8.0mixed
59%
23W–16L · 52.6% of games
9.0mixed
47.9%
23W–25L · 50% of games

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

Match history195 matches
L
2026-07-24 · LOTC-Green-Zwemke/Carpio · #3 Doubles · 8.0 · with Neville Mehta
+0.000below expectation — took 33% of games against 42% expected
6-4, 6-2
L
2026-07-15 · LOTC-Green-Zwemke/Carpio · #2 Doubles · 8.0 · with Neville Mehta
+0.000below expectation — took 47% of games against 61% expected
6-2, 2-6, 1-0
L
Wakana Turner / Dean Gaylormixed
2026-07-12 · WHRC-Green-Zwemke/Pham · #2 Doubles · 9.0 · with Craig Williams
+0.000about as expected — took 48% of games against 51% expected
4-6, 7-5, 1-0
L
2026-06-21 · WHRC-Green-Zwemke/Pham · #1 Doubles · 9.0 · with Renato Bernasconi Zuccari
+0.000below expectation — took 33% of games against 53% expected
6-4, 6-2
W
2026-05-24 · NOR-WHRC-Collie · #2 Doubles · 9.0 · with Renato Bernasconi Zuccari
+0.000about as expected — took 50% of games against 54% expected
7-5, 3-6, 1-0
L
2026-05-23 · NOR-WHRC-Collie · #2 Doubles · 9.0 · with Renato Bernasconi Zuccari
+0.000about as expected — took 39% of games against 44% expected
4-6, 6-1, 1-0
L
2026-05-23 · WHRC-Donato/Lautenbach · #2 Doubles · 4.5 · with Cindy Nordlund
0.003about as expected — took 55% of games against 54% expected
7-5, 1-6, 1-0
W
2026-05-09 · WHRC-Donato/Lautenbach · #1 Doubles · 4.5 · with Kirsten Ruchaber
+0.031better than expected — took 86% of games against 64% expected
6-2, 6-0
W
2026-04-24 · WHRC-Donato/Lautenbach · #1 Doubles · 4.5 · with Kirsten Ruchaber
+0.030better than expected — took 71% of games against 54% expected
6-1, 6-4
L
2026-03-21 · NOR-WHRC-Collie · #1 Doubles · 9.0 · with Bruce Sylva
+0.000below expectation — took 48% of games against 56% expected
4-6, 6-4, 1-0
W
2026-03-13 · MPRC-Cronk/Morris · #2 Doubles · 4.5 · with Kirsten Ruchaber
+0.030better than expected — took 62% of games against 48% expected
7-5, 6-3
L
2026-02-01 · MPRC-Cronk/Morris · #1 Doubles · 4.5 · with Liz ODonnell
0.039below expectation — took 20% of games against 43% expected
6-0, 6-3
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