Head to head
1
Grass
0
John McDonald's wins on the left · Danny O'Bryant's on the right · bar lengths share one scale
All meetings (1)
| 1969 | Boston-2 | Grass | R128 | John McDonald | 10-8 6-1 |
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.