Head to head
0
Hard
1
6
Clay
0
1
Grass
0
1
Carpet
1
Guillermo Vilas's wins on the left · Paul McNamee's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (10)
| 1986 | Stuttgart | Clay | R16 | Guillermo Vilas | 6-1 6-3 |
| 1986 | US Open | Hard | R128 | Paul McNamee | 7-5 5-7 2-6 6-1 6-3 |
| 1983 | Forest Hills WCT | Clay | QF | Guillermo Vilas | 6-2 6-2 |
| 1983 | Hilton Head WCT | Clay | QF | Guillermo Vilas | 6-2 6-0 6-1 |
| 1983 | Detroit WCT | Carpet | QF | Guillermo Vilas | 6-1 6-4 6-1 |
| 1982 | Baltimore WCT | Carpet | F | Paul McNamee | 4-6 7-5 7-5 2-6 6-3 |
| 1980 | Palermo | Clay | F | Guillermo Vilas | 6-4 6-0 6-0 |
| 1977 | Santiago | Clay | R32 | Guillermo Vilas | 7-5 6-1 |
| 1977 | Bogota | Clay | R16 | Guillermo Vilas | 7-5 7-6 |
| 1977 | Australian Open-1 | Grass | R64 | Guillermo Vilas | 6-2 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.