Yasufumi Yamamoto advanced when Bong Soo Kim retired 6-4 5-3 in the Japan Masters 3 round of 32. Yasufumi Yamamoto extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1995-11-06 | Japan Masters 4 | QF | hard | Yasufumi Yamamoto | 3-6 7-6 6-0 |
| 1993-07-18 | Malaysia 2 Masters 3 | R16 | hard | Yasufumi Yamamoto | 6-2 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.