Head to head
0
Clay
1
1
Carpet
3
Butch Walts's wins on the left · Gene Mayer's on the right · bar lengths share one scale
All meetings (5)
| 1980 | Stockholm | Carpet | R16 | Gene Mayer | 6-2 6-1 |
| 1979 | San Francisco | Carpet | R16 | Butch Walts | 6-2 6-3 |
| 1979 | Memphis | Carpet | R32 | Gene Mayer | 5-0 RET |
| 1978 | Guadalajara | Clay | R16 | Gene Mayer | 6-1 6-0 |
| 1976 | Perth | Carpet | R16 | Gene Mayer | 7-6 6-3 |
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.