Head to head
2
Carpet
0
Dennis Ralston's wins on the left · Clark Graebner's on the right · bar lengths share one scale
All meetings (3)
| 1972 | San Juan | Hard | RR | Clark Graebner | W/O |
| 1970 | Wembley | Carpet | R32 | Dennis Ralston | 6-8 6-1 6-4 |
| 1970 | Philadelphia | Carpet | QF | Dennis Ralston | 8-6 6-4 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.