Gouichi Motomura defeated Woong Sun Jun 6-2 6-1 in the Japan F8 qualifying round on hard. The upset overturned the form book — Woong Sun Jun came in leading the head-to-head 1–0, but Gouichi Motomura had been the form player, winning 3 of their last 6 on hard. Gouichi Motomura 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 |
|---|---|---|---|---|---|
| 2007-10-01 | Tokyo | Q16 | hard | Woong Sun Jun | 6-7(5) 6-1 6-4 |
Averages over each player's completed matches in the selected window (4 vs 14). 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