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Zak Zarbock

Draper, UT
3.5C year-end 2025
63 matches · 36W–27L · seasons 2021–2026
Bump probability
3.03.54.0lowhigh
Where this rating stands today. Taller means more likely.
i
The dashed lines are the edges of your band. The three shaded areas are exactly the three percentages below — area here is the chance of one outcome for you, not a count of players.
3.25
estimated dynamic rating
Where the rating sits now, on 10 matches this season · USTA never publishes this number
0%
down to 3.0
100%
stay 3.5
0%
up to 4.0

A 3.5 runs from 3.01 to 3.50. This rating sits in the middle of the band, and every match moves it.

Our estimate, not a USTA figure.
i
scale measured at this point of 2023 on 2160 players. It moves when you play, and occasionally when we improve the model. USTA publishes year-end ratings in December, which is when this gets graded against what actually happened.
Where you rank
Draper · 3.5
7 of 11
UT · 3.5
113 of 176
By our estimated rating, not the published level.
i
Zak is ranked against players at the same level in the same place. The published level is identical for everyone in a band, so it cannot separate them — our estimate can. Groups smaller than five are not ranked at all, because a placing out of two is noise dressed as standing.
Over timerating by season, and how you rank
Rating by season

Zak has been a steady 3.5 across all 4 seasons on record.

3.03.52023202420252026

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.

How you rank at your level
At 3.5, Zak has gone from the 72nd to the 47th percentile of players at that level, 2023 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
3.5
65.9%
29W–15L · 53.4% of games
4.0
0W–1L
not enough matches yet
6.0mixed
1W–1L
not enough matches yet
6.5mixed
80%
4W–1L · 48% of games
7.0mixed
12.5%
1W–7L · 36.4% of games
8.0mixed
0W–1L
not enough matches yet

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

Match history63 matches
L
Bradley Madsen
2026-07-28 · #1 Singles · 3.5
expectation pending — we're still fetching an opponent's record
6-1, 6-4
W
David Ludlow / Michael Isaza
2026-07-21 · #3 Doubles · 3.5 · with Bobby Cannon
expectation pending — we're still fetching an opponent's record
6-4, 7-5
L
Matthew Lee / Kris Denos
2026-07-14 · #2 Doubles · 3.5 · with Jeremiah Bradley
expectation pending — we're still fetching an opponent's record
6-3, 6-4
W
Carl Culver / Keith Wills
2026-06-16 · #3 Doubles · 3.5 · with Keith Gwilliam
expectation pending — we're still fetching an opponent's record
6-3, 6-7, 1-0
L
John Denney / Clay Snaza
2026-05-19 · #1 Doubles · 3.5 · with Jeremiah Bradley
expectation pending — we're still fetching an opponent's record
6-3, 6-4
W
Leandro Taboada / Sai Reddy Peram
2026-04-28 · #1 Doubles · 3.5 · with Jeremiah Bradley
expectation pending — we're still fetching an opponent's record
6-3, 6-1
W
Ron Kemp / Logan Roberts
2026-03-28 · #1 Doubles · 3.5 · with Bob Ziroll
expectation pending — we're still fetching an opponent's record
3-6, 6-3, 1-0
W
Gary Trewick / Trevor Pasmann
2026-02-28 · #3 Doubles · 3.5 · with Antonio Montes De Oca
expectation pending — we're still fetching an opponent's record
6-4, 6-5
L
Mike Evanko / Nathan Macheel
2026-01-31 · #1 Doubles · 3.5 · with Henry Tran
expectation pending — we're still fetching an opponent's record
4-6, 5-3, 1-0
W
Gary Trewick / Tyler Findlay
2026-01-24 · #3 Doubles · 3.5 · with Jeremiah Bradley
expectation pending — we're still fetching an opponent's record
7-5, 4-3
W
David McGill / Rick Killpack
2025-12-13 · #3 Doubles · 3.5 · with Jeremiah Bradley
expectation pending — we're still fetching an opponent's record
6-1, 6-2
W
Colton Clark / Matthew Bordbari
2025-11-15 · #1 Doubles · 3.5 · with Jeremiah Bradley
expectation pending — we're still fetching an opponent's record
6-1, 6-4
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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.