Head to head
2
Hard
0
2
Carpet
0
Billy Martin's wins on the left · Juan Gisbert Sr's on the right · bar lengths share one scale
All meetings (4)
| 1975 | New York | Hard | R16 | Billy Martin | 6-2 4-6 6-2 |
| 1975 | Little Rock | Hard | QF | Billy Martin | 7-6 6-7 6-3 |
| 1975 | Birmingham | Carpet | QF | Billy Martin | 6-4 3-6 7-6 |
| 1973 | Washington-2 | Carpet | R16 | 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.