Head to head
0
Hard
2
2
Clay
0
0
Carpet
2
Guillermo Vilas's wins on the left · Butch Walts's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 1982 | Los Angeles WCT | Carpet | R32 | Butch Walts | 6-3 6-4 |
| 1979 | North Conway | Clay | R32 | Guillermo Vilas | 6-3 3-6 6-1 |
| 1979 | San Jose-1 | Hard | QF | Butch Walts | 6-3 6-3 |
| 1979 | Memphis | Carpet | R64 | Butch Walts | 7-6 7-6 |
| 1978 | US Open | Hard | R16 | Butch Walts | 6-4 7-6 4-6 6-7 6-2 |
| 1977 | Virginia Beach | Clay | R16 | Guillermo Vilas | 6-0 6-7 7-6 |
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.