By surface
| Surface | Constantin Frantzen | Koya Hashimoto |
|---|
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1988-12-04 | WTA | Fed Cup WG ConR: NED vs BUL | Round Robin | — | Manon Bollegraf | 3-6 | 3-6 |
| Surface | Constantin Frantzen | Koya Hashimoto |
|---|
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1988-12-04 | WTA | Fed Cup WG ConR: NED vs BUL | Round Robin | — | Manon Bollegraf | 3-6 | 3-6 |