Head to head
1
Clay
0
3
Grass
0
1
Carpet
0
Clark Graebner's wins on the left · Patricio Cornejo's on the right · bar lengths share one scale
All meetings (5)
| 1973 | Salisbury | Carpet | R64 | Clark Graebner | 6-3 6-3 |
| 1971 | Dublin | Grass | QF | Clark Graebner | 6-4 6-1 |
| 1969 | Southampton | Grass | QF | Clark Graebner | 6-3 6-2 |
| 1969 | South Orange | Grass | R32 | Clark Graebner | 6-1 6-0 |
| 1969 | Indianapolis | Clay | R16 | Clark Graebner | 6-3 6-3 |
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.