Head to head
0
Clay
4
1
Grass
0
Jiri Hrebec's wins on the left · Guillermo Vilas's on the right · bar lengths share one scale
All meetings (5)
| 1981 | Kitzbuhel | Clay | R64 | Guillermo Vilas | 6-4 6-3 |
| 1976 | Monte-Carlo WCT | Clay | R16 | Guillermo Vilas | 6-1 6-3 |
| 1975 | Barcelona-3 | Clay | R16 | Guillermo Vilas | 7-6 6-4 |
| 1973 | Madrid-2 | Clay | R32 | Guillermo Vilas | 7-5 6-3 |
| 1972 | Wimbledon | Grass | R128 | Jiri Hrebec | 7-5 7-5 7-5 |
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.