By surface
| Surface | Clark Graebner | Ron Holmberg |
|---|---|---|
| Hard | 1 | 1 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1969-02-10 | ATP | Salisbury | Quarterfinal | Hard | Clark Graebner | 6-4 | 1-6 | 6-3 | ||
| 1968-02-02 | ATP | Richmond | Quarterfinal | Hard | Ron Holmberg | 7-9 | 10-12 |