Head to head
1
Hard
1
Ron Holmberg's wins on the left · Clark Graebner's on the right · bar lengths share one scale
All meetings (2)
| 1969 | Salisbury | Hard | QF | Clark Graebner | 6-4 1-6 6-3 |
| 1968 | Richmond | Hard | QF | Ron Holmberg | 9-7 12-10 |
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.