By surface
| Surface | Geoff Masters | Clark Graebner |
|---|---|---|
| Grass | 1 | 0 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1974-04-07 | ATP | New Orleans WCT | Round of 32 | — | Geoff Masters | 4-6 | 6-0 | 6-2 | ||
| 1973-08-29 | ATP | US Open | Round of 128 | Grass | Geoff Masters | 4-6 | 6-7 | 6-1 | 6-4 | 7-5 |