Head to head
0
Clay
2
1
Carpet
0
Gene Mayer's wins on the left · Jaime Fillol Sr.'s on the right · bar lengths share one scale
All meetings (3)
| 1982 | Monterrey | Carpet | R32 | Gene Mayer | 6-2 6-2 |
| 1979 | Indianapolis | Clay | R64 | Jaime Fillol Sr. | 1-6 6-2 6-3 |
| 1975 | Louisville | Clay | R64 | Jaime Fillol Sr. | 6-1 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.