By surface
| Surface | Clark Graebner | Quentin Pretorius |
|---|
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1968-01-01 | ATP | Cape Town | Round of 64 | — | Clark Graebner | 6-1 | 6-1 |
| Surface | Clark Graebner | Quentin Pretorius |
|---|
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1968-01-01 | ATP | Cape Town | Round of 64 | — | Clark Graebner | 6-1 | 6-1 |