Yuichi Ito defeated Woong Sun Jun 4-6 7-6 6-3 in the Tokyo q32 on hard. The upset overturned the form book — Woong Sun Jun came in leading the head-to-head 1–0, defending last year's round of 64, but Yuichi Ito had been the form player, winning 1 of their last 6 on hard. Yuichi Ito claimed a first win over Woong Sun Jun in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-06-11 | Japan F5 | R16 | clay | Woong Sun Jun | 6-7(5) 7-6(6) |
Averages over each player's completed matches in the selected window (66 vs 11). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About