Head to head
3
Hard
2
1
Clay
0
2
Grass
0
0
Carpet
2
Sandy 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 (10)
| 1983 | La Quinta | Hard | R16 | Sandy Mayer | 7-5 2-6 6-3 |
| 1979 | Wimbledon | Grass | R64 | Sandy Mayer | 6-3 7-6 4-6 7-6 |
| 1979 | Roland Garros | Clay | R128 | Sandy Mayer | 7-6 6-4 6-0 |
| 1977 | Maui | Hard | QF | Raul Ramirez | 7-6 4-6 6-3 |
| 1977 | Washington-1 | Carpet | QF | Raul Ramirez | 6-3 7-5 |
| 1976 | Los Angeles | Carpet | QF | Raul Ramirez | 6-4 6-3 |
| 1975 | Hong Kong | Hard | SF | Sandy Mayer | 2-6 6-1 6-3 |
| 1975 | Sydney-1 | Hard | R16 | Sandy Mayer | 6-3 6-3 |
| 1975 | Orlando WCT | Hard | R32 | Raul Ramirez | 6-2 7-6(6) |
| 1972 | US Open | Grass | R32 | Sandy Mayer | 6-3 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.