By surface
| Surface | Clark Graebner | Mike Estep |
|---|---|---|
| Hard | 2 | 0 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1971-08-22 | ATP | Merion | Round of 32 | Hard | Clark Graebner | 7-6 | 7-5 | |||
| 1968-02-12 | ATP | Salisbury | Round of 16 | Hard | Clark Graebner | 1-0 |