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Jack Yoon

Columbia, SC
4.0C year-end 2025
i
Computer — generated by the USTA algorithm from match play
22 matches · 8W–14L · seasons 2025–2026

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Match history22 matches
W
2026-04-15 · CTL (A) 4.0M 18 & Over (Kitowicz) · #1 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
6-3, 6-0
L
2026-04-13 · CTL (A) 4.0M 40 & Over (Eifert) · #1 Doubles · 4.0 · with Chris Collins
expectation pending — we’re still fetching an opponent’s record
1-6, 1-6
W
2026-04-08 · CTL (A) 4.0M 18 & Over (Kitowicz) · #1 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
6-4, 6-2
W
2026-04-01 · CTL (A) 4.0M 18 & Over (Kitowicz) · #1 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
6-3, 7-5
L
2026-03-30 · CTL (A) 4.0M 40 & Over (Eifert) · #1 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
2-6, 5-7
W
2026-03-23 · CTL (A) 4.0M 40 & Over (Eifert) · #1 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
6-4, 6-4
W
2026-03-09 · CTL (A) 4.0M 40 & Over (Eifert) · #1 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
6-1, 6-1
W
Christopher Smith
2026-03-02 · CTL (A) 4.0M 40 & Over (Eifert) · #1 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
6-0, 6-3
W
2026-02-16 · CTL (A) 4.0M 40 & Over (Eifert) · #1 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
6-3, 6-3
L
2025-09-16 · #2 Doubles · 8.5 · with Alex Echols
expectation pending — we’re still fetching an opponent’s record
2-6, 0-6
L
2025-09-08 · #3 Doubles · 7.5 · with Ramkumar Jayagopalan
expectation pending — we’re still fetching an opponent’s record
3-6, 3-6
L
2025-08-28 · #2 Doubles · 8.5 · with Stephen Bidwell
expectation pending — we’re still fetching an opponent’s record
2-6, 6-7
Where you rank locallyagainst everyone at your level
Teams2 teams · 2026–2026
CTL (A) 4.0M 18 & Over (Kitowicz)
Adult 18 & Over - USTA · 18 & Over Adult Men - 4.0 · 18+
2026
CTL (A) 4.0M 40 & Over (Eifert)
Adult 40 & Over - USTA · 40 & Over Adult Men - 4.0 · 40+
2026
Over timerating by season, and how you rank
By level3 levels played
4.0
50%
8W–8L · 52% of games
7.5
0W–2L
not enough matches yet
8.5
0%
0W–4L · 27.9% of games

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

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.

I really think a champion is defined not by their wins but by how they can recover when they fall.
Serena Williams