Head to head
1
Grass
0
Clark Graebner's wins on the left · Allan McDonald's on the right · bar lengths share one scale
All meetings (1)
| 1971 | Wimbledon | Grass | R128 | Clark Graebner | 6-4 6-2 6-2 |
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.