Head to head
2
Hard
0
1
Grass
0
Russell Simpson's wins on the left · Billy Martin's on the right · bar lengths share one scale
All meetings (3)
| 1979 | US Open | Hard | R128 | Russell Simpson | 7-5 6-1 1-6 5-7 6-4 |
| 1977 | Nottingham | Grass | R64 | Russell Simpson | 7-5 4-6 6-3 |
| 1976 | Hong Kong | Hard | R32 | Russell Simpson | 6-4 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.