Head to head
0
Hard
1
1
Clay
1
1
Carpet
0
Raul Ramirez's wins on the left · Van Winitsky's on the right · bar lengths share one scale
All meetings (4)
| 1982 | Guaruja | Hard | QF | Van Winitsky | 6-3 7-6 |
| 1978 | Columbus | Clay | R32 | Van Winitsky | 2-6 7-6 6-4 |
| 1978 | Washington-2 | Clay | R32 | Raul Ramirez | 7-6 6-3 |
| 1978 | Mexico City-1 | Carpet | R32 | Raul Ramirez | 6-3 4-6 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.