By surface
| Surface | Valentin Guenther | Christian Karl |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1981-07-20 | WTA | Bastad | Round of 16 | Clay | Brenda Catton | 6-3 | 3-6 | 3-6 |
| Surface | Valentin Guenther | Christian Karl |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1981-07-20 | WTA | Bastad | Round of 16 | Clay | Brenda Catton | 6-3 | 3-6 | 3-6 |