Head to head
1
Hard
0
0
Clay
2
0
Grass
1
Victor Amaya's wins on the left · Guillermo Vilas's on the right · bar lengths share one scale
All meetings (4)
| 1980 | Cleveland | Hard | SF | Victor Amaya | 6-4 7-6 |
| 1979 | Australian Open | Grass | SF | Guillermo Vilas | 7-5 3-6 7-6 7-6 |
| 1977 | US Open | Clay | R32 | Guillermo Vilas | 6-3 6-3 |
| 1976 | Rome-2 | Clay | R64 | Guillermo Vilas | 6-3 1-6 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.