Head to head
0
Hard
1
0
Clay
1
1
Grass
1
0
Carpet
1
Cliff Richey's wins on the left · Raul Ramirez's on the right · bar lengths share one scale
All meetings (5)
| 1976 | Johannesburg-2 | Hard | QF | Raul Ramirez | 6-2 6-4 |
| 1976 | North Conway | Clay | SF | Raul Ramirez | 6-1 6-1 |
| 1976 | Monterrey WCT | Carpet | QF | Raul Ramirez | 6-2 6-7(6) 7-6(2) |
| 1975 | Wimbledon | Grass | R16 | Raul Ramirez | 6-2 6-3 6-2 |
| 1973 | US Open | Grass | R32 | Cliff Richey | 6-2 6-4 6-7 7-6 |
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.