By surface
| Surface | Petra Keppeler | Ben Knapp |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1982-05-17 | WTA | Neumunster | Round of 32 | Clay | Petra Keppeler | 3-6 | 6-1 | 7-6 |
| Surface | Petra Keppeler | Ben Knapp |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1982-05-17 | WTA | Neumunster | Round of 32 | Clay | Petra Keppeler | 3-6 | 6-1 | 7-6 |