Ryuso Tsujino defeated Kentaro Masuda 4-6 6-1 6-2 in the China Masters 2 round of 32 on hard. The result followed the form book — Ryuso Tsujino came in leading the head-to-head 2–1. Ryuso Tsujino extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-11-04 | Japan Masters 3 | R16 | hard | Ryuso Tsujino | 6-3 1-6 6-2 |
| 1991-11-04 | Japan Masters 4 | QF | hard | Kentaro Masuda | 6-2 6-3 |
| 1991-05-20 | Korea Masters 4 | R16 | clay | Ryuso Tsujino | 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.