Head to head
1
Hard
0
1
Carpet
0
Clark Graebner's wins on the left · Hans Kary's on the right · bar lengths share one scale
All meetings (2)
| 1973 | Birmingham | Carpet | R16 | Clark Graebner | 6-0 6-4 |
| 1971 | San Juan | Hard | R32 | Clark Graebner | 6-7 6-1 6-0 |
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.