Head to head
0
Hard
1
2
Grass
1
1
Carpet
0
Billy Martin's wins on the left · Tim Gullikson's on the right · bar lengths share one scale
All meetings (5)
| 1981 | Queen's Club | Grass | R32 | Billy Martin | 6-3 6-2 |
| 1979 | Cincinnati | Hard | R32 | Tim Gullikson | 6-3 6-2 |
| 1978 | Wimbledon | Grass | R32 | Tim Gullikson | 6-3 9-7 7-5 |
| 1978 | Queen's Club | Grass | R64 | Billy Martin | 6-1 9-8 |
| 1977 | San Jose | Carpet | QF | Billy Martin | 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.