Head to head
1
Hard
0
1
Grass
0
Guillermo Vilas's wins on the left · John Yuill's on the right · bar lengths share one scale
All meetings (2)
| 1978 | Johannesburg-1 | Hard | R32 | Guillermo Vilas | 7-5 3-6 7-5 |
| 1977 | Wimbledon | Grass | R64 | Guillermo Vilas | 6-3 6-2 3-6 8-6 |
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.