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Jeroen Swanborn

Tualatin, OR
4.0C year-end 2025
113 matches · 67W–46L · seasons 20192026
Bump probability
3.54.04.5lowhigh

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.

3.85
estimated dynamic rating
Where the rating sits now, on 13 matches this season · USTA never publishes this number
0%
down to 3.5
97%
stay 4.0
3%
up to 4.5
Projected to December: 0% down · 99% stay · 1% up, from a year-end estimate of 3.81. Lower than today’s 3.85 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 4.0 runs from 3.51 to 4.00. This rating sits in the upper 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
Tualatin · 4.0
3 of 13
OR · 4.0
64 of 498

Jeroen 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.

Teams49 teams · 2001–2026
SHC-Cosart
2026 Adult 40 & Over · 4.0 Men
2026
SHC-Young
2026 Adult 18 & Over · 4.0 Men
2026
NOR-MPRC-Dudley
2026 Mixed 55 & Over · 8.0 Mixed
2026
N OR-SHC-Farrell
2025 Adult 55 & Over · 8.0 Men
2025
SHC-Monson
2025 Adult 40 & Over · 4.5 Men
2025
SHC-Monson 9.0
2025 Mixed 18 & Over · 9.0 Mixed
2025
Over timerating by season, and how you rank
Rating by season

Jeroen has played at 4.5, 4.0 across 6 seasons — 1 move up and 2 down.

3.54.04.5201920202023202420252026

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. The smaller, faded points — 2020 — rest on fewer than 5 matches, where the estimate is mostly the level the player was entered at rather than anything they did on court. Read the shape, not the value.

How you rank at your level
At 4.0, Jeroen has gone from the 98th to the 58th 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 level6 levels played
4.0
73.3%
11W–4L · 59.9% of games
4.5
33.3%
6W–12L · 44.8% of games
7.0
100%
4W–0L · 70.4% of games
8.0
90.9%
10W–1L · 57.9% of games
8.0mixed
70.3%
26W–11L · 59.5% of games
9.0mixed
35%
7W–13L · 49.3% of games

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

Match history113 matches
W
2026-06-14 · SHC-Young · #3 Doubles · 4.0 · with Sam Bradshaw
+0.007better than expected — took 75% of games against 65% expected
6-3, 6-1
W
2026-05-30 · SHC-Young · #3 Doubles · 4.0 · with Sam Bradshaw
0.010about as expected — took 52% of games against 57% expected
5-7, 6-4, 1-0
W
2026-05-24 · NOR-MPRC-Dudley · #3 Doubles · 8.0 · with Heather Dudley
+0.000about as expected — took 71% of games against 74% expected
6-2, 6-3
L
2026-05-16 · NOR-MPRC-Dudley · #3 Doubles · 8.0 · with Leigh Anderson
+0.000below expectation — took 41% of games against 61% expected
3-6, 6-1, 1-0
W
N/Amixed
2026-05-02 · NOR-MPRC-Dudley · #3 Doubles · 8.0 · with Sherri Sacconaghi
+0.000about as expected — took 100% of games against 96% expected
6-0, 6-0
L
2026-04-26 · SHC-Young · #2 Doubles · 4.0 · with Sam Bradshaw
0.013below expectation — took 29% of games against 40% expected
6-2, 6-3
W
Julie Hansen / Eric Meansmixed
2026-04-11 · NOR-MPRC-Dudley · #1 Doubles · 8.0 · with Heather Dudley
+0.000better than expected — took 80% of games against 70% expected
6-3, 6-0
L
2026-04-03 · SHC-Young · #3 Doubles · 4.0 · with Pete Stirling
0.014below expectation — took 43% of games against 50% expected
6-3, 6-7, 1-0
W
2026-03-28 · NOR-MPRC-Dudley · #3 Doubles · 8.0 · with Carrie Fisher
+0.000better than expected — took 71% of games against 64% expected
6-4, 6-1
W
2026-03-22 · SHC-Cosart · #1 Doubles · 4.0 · with Marcus Kroloff
+0.043better than expected — took 92% of games against 63% expected
6-1, 6-0
W
2026-03-15 · SHC-Cosart · #1 Doubles · 4.0 · with Sam Bradshaw
+0.043better than expected — took 71% of games against 48% expected
6-2, 6-3
L
2026-02-22 · SHC-Cosart · #1 Doubles · 4.0 · with Sam Bradshaw
0.054below expectation — took 25% of games against 53% expected
6-2, 6-2
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Not affiliated with or endorsed by the USTA. Rating shown is the published USTA year-end figure; match data is from USTA TennisLink.