Yuichi Sugita defeated Young Jun Kim 6-2 6-0 in the Japan F6 round of 16 on carpet. Yuichi Sugita extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-04-20 | Korean Rep F3 | SF | hard | Young Jun Kim | 6-0 6-1 |
| 2008-07-28 | Indonesia F1 | F | hard | Yuichi Sugita | 6-1 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.