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Derek Collum

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Jacksonville, FL
4.0C year-end 2025
i
Computer — generated by the USTA algorithm from match play
9 matches · 6W–3L · seasons 2023–2026
Match history9 matches
L
2026-02-17 · Duval/Kasper · #2 Doubles · 8.0 · with Hans Vanden Noort
loading the estimate
6-4, 3-6, 0-1
W
2026-01-13 · Duval/Kasper · #2 Doubles · 8.0 · with Peter Snell
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6-3, 6-2
W
2025-03-19 · LATA40/Newman/SSP · #1 Singles · 4.0
loading the estimate
6-2, 6-3
L
2025-03-16 · Williams Y - Leach · #1 Doubles · 8.0 · with Eugene Kasper
loading the estimate
0-6, 6-3, 0-1
W
2025-02-26 · LATA40/Newman/SSP · #1 Singles · 4.0
loading the estimate
6-2, 6-2
L
2025-02-17 · LATA40/Newman/SSP · #1 Singles · 4.0
loading the estimate
3-6, 5-7
W
2025-02-09 · Williams Y - Leach · #1 Doubles · 8.0 · with Hans Vanden Noort
loading the estimate
5-7, 7-6, 1-0
W
2023-06-15 · San Jose - Vanden Noort · #2 Singles · 4.0
loading the estimate
6-4, 6-4
W
2023-05-21 · San Jose - Vanden Noort · #2 Singles · 4.0
loading the estimate
6-3, 6-0
Where you rank locallyagainst everyone at your level
Teams4 teams · 2023–2026
Over timerating by season, and how you rank
By level2 levels played
4.0
80%
4W–1L · 62.9% of games
8.0
50%
2W–2L · 50.6% of games

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

By lineusually #1 Singles, 33% of the time
#1 Singles
33%
3 matches
#1 Doubles
22%
2 matches
#2 Doubles
22%
2 matches
#2 Singles
22%
2 matches

How often, across every team and every match we hold — including ones that do not count toward a rating. Advanced stats has a court-position table too, and it answers a different question: how well you do there, over matches that count. A team’s own page shows how that one team uses you.

Not affiliated with or endorsed by the USTA. Ratings labelled as published are USTA year-end figures; anything we describe as an estimate is ours, not USTA’s. Match data is from USTA TennisLink.

You can get through anything if you keep going one point at a time.
Arthur Ashe