Head to head
1
Clay
0
0
Grass
1
Billy Martin's wins on the left · Karl Meiler's on the right · bar lengths share one scale
All meetings (2)
| 1977 | Columbus | Clay | R64 | Billy Martin | 6-3 6-4 |
| 1973 | Wimbledon | Grass | R64 | Karl Meiler | 6-1 6-4 9-8 |
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.