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Zack Messer

Las Vegas, NV
4.5C year-end 2025
319 matches · 195W–124L · 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.

3.77
estimated dynamic rating
Where the rating sits now, on 28 matches this season · USTA never publishes this number
100%
down to 4.0
0%
stay 4.5
0%
up to 5.0
Projected to December: 95% down · 5% stay · 0% up, from a year-end estimate of 3.87. Higher than today’s 3.77 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 bottom 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
Las Vegas · 4.5
38 of 39
NV · 4.5
59 of 61

Zack 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.

Over timerating by season, and how you rank
Rating by season

Zack has played at 4.0, 4.5 across 8 seasons — 1 move up and 0 down.

3.54.04.520192020202120222023202420252026

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, Zack has gone from the 20th to the 32nd 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 level6 levels played
4.0
80%
84W–21L · 62.1% of games
4.5
46%
29W–34L · 48.8% of games
7.5mixed
82.4%
14W–3L · 60.4% of games
8.0mixed
59.3%
32W–22L · 53.5% of games
8.5mixed
34.4%
11W–21L · 42.4% of games
9.0mixed
33.3%
3W–6L · 46.8% of games

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

Match history319 matches
L
Christine DeLisle / Mike Fitzpatrickmixed
2026-07-26 · #3 Doubles · 8.5 · with Stacia Walker
+0.000below expectation — took 25% of games against 45% expected
6-1, 6-3
L
Audrey Chin / Miguel Ubilluzmixed
2026-07-21 · #1 Doubles · 8.5 · with Alex Farley Messer
+0.000below expectation — took 20% of games against 43% expected
6-1, 6-2
L
2026-07-19 · #2 Doubles · 8.5 · with Stacia Walker
+0.000below expectation — took 29% of games against 40% expected
6-3, 6-2
W
Paul Wilewski / Kevin Howard
2026-06-06 · #2 Doubles · 4.5 · with Mike Burgoyne
0.023below expectation — took 42% of games against 55% expected
5-7
L
2026-05-25 · #2 Doubles · 4.5 · with Mark Sylvain
0.012below expectation — took 37% of games against 44% expected
6-4, 6-3
L
Jason Tang / Nathaniel Yost
2026-05-16 · #1 Doubles · 4.5 · with Aaron Shumway
0.024below expectation — took 41% of games against 52% expected
7-6, 6-3
L
Adam Barr / Chloe Dillingmixed
2026-05-15 · #1 Doubles · 9.0 · with Alex Farley Messer
+0.000below expectation — took 29% of games against 50% expected
6-4, 6-1
L
James Russell / Andre Williams
2026-05-02 · #1 Doubles · 4.5 · with Aaron Shumway
0.004below expectation — took 29% of games against 37% expected
6-1, 6-4
L
Varun Desai / Kristi Pishkomixed
2026-04-26 · #3 Doubles · 9.0 · with Brigitte Fallon
+0.000below expectation — took 33% of games against 57% expected
6-2, 6-4
L
Scott Baker / Rachel Calderon Youngmixed
2026-04-26 · #2 Doubles · 8.0 · with Alexandra Wysong
+0.000below expectation — took 25% of games against 32% expected
6-0, 6-4
W
Thomas Cunningham / Nick Arriola
2026-04-25 · #1 Doubles · 4.5 · with Mark Sylvain
+0.030better than expected — took 55% of games against 42% expected
6-3, 5-7, 1-0
L
Bill Oakley / Amanda Parson Siegelmixed
2026-04-12 · #3 Doubles · 9.0 · with Alex Farley Messer
+0.000below expectation — took 25% of games against 48% expected
6-2, 6-2
What an account addsprivate to you

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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.