Jae Sung An defeated Tatsuma Ito 7-5 6-3 in the Japan F2 semi-final on hard. The upset overturned the form book — Tatsuma Ito came in leading the head-to-head 1–0. Jae Sung An claimed a first win over Tatsuma Ito in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-07-20 | Korean Rep F6 | QF | hard | Tatsuma Ito | 6-0 7-6(1) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.