Young Jun Kim defeated Yuichi Sugita 6-0 6-1 in the Korean Rep F3 semi-final on hard. The upset overturned the form book — Yuichi Sugita came in leading the head-to-head 2–0, but Young Jun Kim had been the form player, winning 5 of their last 10 on hard. Young Jun Kim claimed a first win over Yuichi Sugita in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-07-28 | Indonesia F1 | F | hard | Yuichi Sugita | 6-1 6-0 |
| 2008-06-23 | Japan F6 | R16 | carpet | Yuichi Sugita | 6-2 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.