Head to head
3
Clay
1
Guillermo Vilas's wins on the left · Diego Perez's on the right · bar lengths share one scale
All meetings (4)
| 1987 | Geneva | Clay | R32 | Guillermo Vilas | 6-4 6-1 |
| 1985 | Boston | Clay | R64 | Guillermo Vilas | 6-3 6-2 |
| 1983 | Boston | Clay | R16 | Diego Perez | 4-6 6-1 6-2 |
| 1982 | Buenos Aires | Clay | SF | Guillermo Vilas | 6-4 6-2 |
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.