Head to head
1
Hard
1
0
Clay
3
Hans Schwaier's wins on the left · Guillermo Vilas's on the right · bar lengths share one scale
All meetings (5)
| 1987 | Hamburg | Clay | R32 | Guillermo Vilas | 7-6 7-5 |
| 1986 | World Team Cup | Clay | RR | Guillermo Vilas | 6-1 6-1 |
| 1986 | Forest Hills | Clay | R64 | Guillermo Vilas | 6-4 5-7 6-4 |
| 1985 | La Quinta | Hard | R64 | Hans Schwaier | 6-7 6-4 6-4 |
| 1984 | Basel | Hard | R32 | Guillermo Vilas | 3-6 6-1 6-4 |
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.