Head to head
1
Clay
0
0
Carpet
1
Billy Martin's wins on the left · Jun Kamiwazumi's on the right · bar lengths share one scale
All meetings (2)
| 1976 | Roland Garros | Clay | R128 | Billy Martin | 3-6 6-0 6-4 7-5 |
| 1975 | Washington WCT | Carpet | R32 | Jun Kamiwazumi | 4-6 6-3 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.