Head to head
1
Hard
0
1
Clay
1
1
Carpet
2
Gene Mayer's wins on the left · Raul Ramirez's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 1979 | Vienna | Hard | R16 | Gene Mayer | 6-1 6-2 |
| 1979 | Forest Hills WCT | Clay | RR | Gene Mayer | 6-7 6-0 6-4 |
| 1979 | Milan WCT | Carpet | R32 | Gene Mayer | 7-5 6-4 |
| 1978 | Washington-1 | Carpet | R16 | Raul Ramirez | 6-3 7-5 |
| 1978 | Mexico City-1 | Carpet | SF | Raul Ramirez | 6-3 7-6 |
| 1977 | Rome | Clay | R64 | Raul Ramirez | 6-3 6-0 |
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.