By surface
| Surface | Katharina Duell | Constantin Frantzen |
|---|---|---|
| Clay | 0 | 1 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1987-09-21 | WTA | Hamburg | Round of 64 | Clay | Manon Bollegraf | 3-6 | 6-2 | 4-6 |
| Surface | Katharina Duell | Constantin Frantzen |
|---|---|---|
| Clay | 0 | 1 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1987-09-21 | WTA | Hamburg | Round of 64 | Clay | Manon Bollegraf | 3-6 | 6-2 | 4-6 |