Head to head
1
Grass
0
0
Carpet
1
Billy Martin's wins on the left · Pat Dupre's on the right · bar lengths share one scale
All meetings (2)
| 1979 | San Francisco | Carpet | QF | Pat Dupre | 6-1 6-3 |
| 1977 | Queen's Club | Grass | R64 | Billy Martin | 7-5 6-4 |
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.