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Colby Mueller

Timnath, CO
4.5C year-end 2025
79 matches · 55W–24L · seasons 2022–2026
Bump probability
4.04.55.0lowhigh
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.
4.06
estimated dynamic rating
Where the rating sits now, on 10 matches this season · USTA never publishes this number
24%
down to 4.0
76%
stay 4.5
0%
up to 5.0
Projected to December: 14% down · 86% stay · 0% up, from a year-end estimate of 4.08. Higher than today’s 4.06 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.
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
CO · 4.5
29 of 30
By our estimated rating, not the published level.
i
Colby 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

Colby has been 4.5 for all 5 seasons on record, but moved a long way inside it — from the bottom of the band to the top.

4.04.520222023202420252026

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, Colby has gone from the 79th to the 95th percentile of players at that level, 2022 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 level3 levels played
4.5
74.4%
29W–10L · 59.9% of games
8.5mixed
80%
12W–3L · 60.1% of games
9.0mixed
50%
9W–9L · 51.3% of games

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

Match history79 matches
W
N/A
2026-07-06 · #3 Doubles · 4.5 · with Daniel Jackson
expectation pending — we're still fetching an opponent's record
6-0, 6-0
W
Daniel Plowman / Charles Oneill
2026-07-06 · #1 Doubles · 4.5 · with Daniel Jackson
expectation pending — we're still fetching an opponent's record
6-2, 6-1
W
Mark Smith / Tom Weller
2026-05-26 · #2 Doubles · 4.5 · with Christopher Mitchell
expectation pending — we're still fetching an opponent's record
6-2, 6-0
W
Zachary Bekkedahl / Chad Schneider
2026-05-19 · #2 Doubles · 4.5 · with Christopher Mitchell
expectation pending — we're still fetching an opponent's record
6-4, 6-3
W
Shawn Farnell / Andrea Wallacemixed
2026-05-17 · #1 Doubles · 9.0 · with Kelsey Keene
mixed — doesn't count toward your NTRP rating
6-4, 6-4
L
Adriana Jones / Stephen Rivoiremixed
2026-05-10 · #3 Doubles · 9.0 · with Caryl Abeyta
mixed — doesn't count toward your NTRP rating
6-1, 7-5
L
Craig Smith / Vernon McManigal
2026-05-05 · #2 Doubles · 4.5 · with Taylor Nguyen
expectation pending — we're still fetching an opponent's record
6-3, 6-4
W
Matt Krammer / Seth Krammer
2026-04-28 · #1 Doubles · 4.5 · with Taylor Nguyen
expectation pending — we're still fetching an opponent's record
6-4, 7-6
W
Shawn Farnell / Andrea Wallacemixed
2026-04-26 · #2 Doubles · 9.0 · with Kelsey Keene
mixed — doesn't count toward your NTRP rating
6-2, 0-6, 1-0
W
Chad Schneider / Carmen Kildaymixed
2026-04-19 · #2 Doubles · 9.0 · with Kelly Blanks
mixed — doesn't count toward your NTRP rating
6-4, 6-0
L
2025-08-21 · #1 Singles · 4.5
−0.073below expectation — took 33% of games against 64% expected
6-4, 6-2
W
Amanda Repert / Wil Buchananmixed
2025-08-17 · #2 Doubles · 8.5 · with Sarah Less
mixed — doesn't count toward your NTRP rating
6-2, 6-3
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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.