Head to head
4
Hard
7
1
Clay
1
0
Carpet
3
Roscoe Tanner'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 (16)
| 1982 | La Quinta | Hard | QF | Raul Ramirez | 6-4 5-7 7-5 |
| 1981 | Las Vegas | Hard | R16 | Roscoe Tanner | 7-6 7-5 |
| 1981 | Davis Cup WG R1: USA vs MEX | Hard | RR | Raul Ramirez | 3-6 8-6 6-3 8-10 6-3 |
| 1979 | Las Vegas | Hard | R16 | Roscoe Tanner | 7-5 6-3 |
| 1978 | WCT Challenge Cup | Hard | RR | Raul Ramirez | 3-6 6-5 6-1 |
| 1978 | Washington-1 | Carpet | SF | Raul Ramirez | 6-4 6-2 |
| 1978 | Palm Springs | Hard | F | Roscoe Tanner | 6-1 7-6 |
| 1978 | Masters | Carpet | RR | Raul Ramirez | 6-4 6-4 |
| 1976 | Davis Cup AME QF: USA vs MEX | Hard | RR | Roscoe Tanner | 7-5 6-4 6-4 |
| 1975 | Charlotte WCT | Clay | F | Raul Ramirez | 3-6 6-4 6-3 |
| 1975 | Caracas WCT | Hard | SF | Raul Ramirez | 6-4 7-6(6) |
| 1975 | St. Petersburg WCT | Carpet | F | Raul Ramirez | 6-0 1-6 6-2 |
| 1975 | Davis Cup AME PR: USA vs MEX | Hard | RR | Raul Ramirez | 7-5 7-9 6-4 6-2 |
| 1974 | Columbus | Hard | F | Raul Ramirez | 3-6 7-6 6-4 |
| 1973 | Los Angeles | Hard | R32 | Raul Ramirez | 6-3 7-6 |
| 1973 | Cincinnati | Clay | R32 | Roscoe Tanner | 6-4 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.