Kentaro Masuda defeated Bong Soo Kim 6-4 6-3 in the Japan Masters 1 semi-final on hard. Kentaro Masuda extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1992-07-13 | Malaysia 2 Masters 4 | R16 | hard | Bong Soo Kim | 6-2 6-2 |
| 1991-11-04 | Japan Masters 4 | R16 | hard | Kentaro Masuda | 3-6 6-2 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.