By surface
| Surface | Yasufumi Yamamoto | Roland So |
|---|---|---|
| Hard | 0 | 1 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1992-01-31 | ATP | Davis Cup G1 PO: PHI vs JPN | Round Robin | Hard | Roland So | 4-6 | 6-1 | 6-2 | 3-6 | 4-6 |
| Surface | Yasufumi Yamamoto | Roland So |
|---|---|---|
| Hard | 0 | 1 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1992-01-31 | ATP | Davis Cup G1 PO: PHI vs JPN | Round Robin | Hard | Roland So | 4-6 | 6-1 | 6-2 | 3-6 | 4-6 |