Head to head
1
Hard
0
7
Clay
0
1
Carpet
0
Guillermo Vilas's wins on the left · Jeff Borowiak's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (9)
| 1983 | Hamburg | Clay | QF | Guillermo Vilas | 6-0 6-2 |
| 1978 | South Orange | Clay | QF | Guillermo Vilas | 6-4 3-6 6-2 |
| 1978 | Gstaad | Clay | SF | Guillermo Vilas | 6-3 6-3 4-6 7-6 |
| 1977 | South Orange | Clay | QF | Guillermo Vilas | 6-3 7-5 |
| 1975 | San Francisco | Carpet | SF | Guillermo Vilas | 5-7 6-4 6-4 |
| 1975 | Louisville | Clay | R32 | Guillermo Vilas | 4-6 6-3 7-6 |
| 1974 | Paris | Hard | R16 | Guillermo Vilas | 6-4 6-2 |
| 1974 | Toronto-2 | Clay | R16 | Guillermo Vilas | 6-3 6-4 |
| 1973 | Indianapolis | Clay | R32 | Guillermo Vilas | 6-2 2-6 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.