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Cory Heisterkamp

Ridgefield, WA
3.5C year-end 2025
136 matches · 86W–50L · seasons 20232026
Bump probability
3.03.54.0lowhigh

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.

3.33
estimated dynamic rating
Where the rating sits now, on 39 matches this season · USTA never publishes this number
0%
down to 3.0
98%
stay 3.5
2%
up to 4.0

A 3.5 runs from 3.01 to 3.50. 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
WA · 3.5
457 of 1209

Cory 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.

Teams22 teams · 2023–2027
Over timerating by season, and how you rank
Rating by season

Cory has played at 3.0, 3.5 across 4 seasons — 1 move up and 0 down.

2.53.03.52023202420252026

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 — 2023 — 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 3.5, Cory has gone from the 31st to the 64th 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 level9 levels played
3.0
89.5%
34W–4L · 67.8% of games
3.5
55.3%
26W–21L · 49.7% of games
4.0
0W–3L
not enough matches yet
6.0
66.7%
4W–2L · 61.7% of games
7.0
37.5%
3W–5L · 48.7% of games
8.0
0%
0W–4L · 22.6% of games
6.0mixed
88.9%
8W–1L · 68.1% of games
7.0mixed
42.9%
3W–4L · 42.9% of games
8.0mixed
0W–2L
not enough matches yet

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

Match history136 matches
L
2026-07-29 · Heisterkamp · #1 Doubles · 3.5 · with Dallas Kelle
0.026below expectation — took 20% of games against 38% expected
6-1, 6-2
W
2026-07-19 · Heisterkamp · #1 Doubles · 3.5 · with Dallas Kelle
+0.015better than expected — took 65% of games against 56% expected
6-2, 7-5
W
Edward Kim
2026-07-15 · #1 Singles · 3.5
0.020below expectation — took 42% of games against 54% expected
7-5, 0-6, 1-0
W
2026-06-29 · Heisterkamp · #1 Doubles · 3.5 · with Dallas Kelle
+0.042better than expected — took 86% of games against 60% expected
6-2, 6-0
W
Brady McAtee / Jin Hui
2026-06-28 · Heisterkamp · #1 Doubles · 3.5 · with Dallas Kelle
+0.023better than expected — took 80% of games against 63% expected
6-0, 6-3
W
BHAVANI SHANKAR KRISHNA KUMAR
2026-06-26 · #1 Singles · 3.5
0.011better than expected — took 80% of games against 74% expected
6-2, 6-1
L
2026-06-22 · Heisterkamp · #1 Doubles · 3.5 · with Brandon Campos
0.033below expectation — took 29% of games against 47% expected
6-4, 6-1
W
2026-06-14 · Heisterkamp · #1 Doubles · 3.5 · with Dallas Kelle
+0.038better than expected — took 63% of games against 45% expected
6-4, 6-3
L
Justin Leitenberger
2026-06-13 · PTC-Byrd/Johnson · #2 Singles · 3.5
0.040below expectation — took 20% of games against 43% expected
6-1, 6-2
L
2026-06-08 · #1 Singles · 3.5
+0.018better than expected — took 43% of games against 37% expected
7-6, 6-4
L
2026-06-06 · VTC-Martin · #2 Doubles · 4.0 · with Marcelo Diversi
+0.014about as expected — took 37% of games against 35% expected
6-3, 6-4
W
2026-05-30 · PTC-Byrd/Johnson · #1 Doubles · 3.5 · with Dallas Kelle
0.025below expectation — took 48% of games against 59% expected
3-6, 7-6, 1-0
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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.