By surface
| Surface | Clark Graebner | Mike Belkin |
|---|---|---|
| Clay | 3 | 1 |
All meetings (4)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1971-04-20 | ATP | Houston | Semifinal | Clay | Clark Graebner | 6-1 | 3-6 | 7-5 | 4-6 | 6-4 |
| 1971-04-14 | ATP | Jacksonville | Semifinal | Clay | Clark Graebner | 6-4 | 4-6 | 6-4 | ||
| 1968-07-15 | ATP | Milwaukee | Quarterfinal | Clay | Clark Graebner | 6-1 | 6-1 | 6-2 | ||
| 1968-04-15 | ATP | Houston 2 | Quarterfinal | Clay | Mike Belkin | 4-6 | 1-6 |