By surface
| Surface | Alexander Mronz | Yasufumi Yamamoto |
|---|---|---|
| Hard | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1991-04-08 | ATP | Tokyo Outdoor | Round of 64 | Hard | Alexander Mronz | 6-1 | 6-2 |
| Surface | Alexander Mronz | Yasufumi Yamamoto |
|---|---|---|
| Hard | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1991-04-08 | ATP | Tokyo Outdoor | Round of 64 | Hard | Alexander Mronz | 6-1 | 6-2 |