Head to head
2
Hard
0
8
Clay
1
4
Carpet
1
Guillermo Vilas's wins on the left · Buster C. Mottram's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (16)
| 1983 | Delray Beach WCT | Clay | R16 | Guillermo Vilas | 2-6 6-1 6-2 |
| 1982 | Rotterdam | Carpet | SF | Guillermo Vilas | 6-4 6-4 |
| 1981 | Davis Cup WG SF: ARG vs GBR | Clay | RR | Guillermo Vilas | 6-3 6-1 6-1 |
| 1980 | Roland Garros | Clay | R32 | Guillermo Vilas | 6-2 6-2 6-3 |
| 1979 | Tokyo-2 | Carpet | R32 | Buster C. Mottram | 6-4 6-4 |
| 1979 | Richmond WCT | Carpet | R16 | Guillermo Vilas | 5-7 6-3 6-3 |
| 1979 | Philadelphia WCT | Carpet | R32 | Guillermo Vilas | 6-4 6-3 |
| 1979 | Birmingham WCT | Carpet | QF | Guillermo Vilas | 6-2 6-3 |
| 1978 | Munich | Clay | F | Guillermo Vilas | 6-1 6-3 6-3 |
| 1977 | Johannesburg-2 | Hard | F | Guillermo Vilas | 7-6 6-3 6-4 |
| 1977 | Tehran | Clay | QF | Guillermo Vilas | 6-1 6-2 |
| 1977 | Kitzbuhel | Clay | QF | Guillermo Vilas | 6-4 6-1 |
| 1977 | Hamburg | Clay | QF | Buster C. Mottram | 4-6 6-3 6-4 |
| 1977 | Nice | Clay | R16 | Guillermo Vilas | 7-5 7-6 |
| 1977 | Johannesburg-1 | Hard | SF | Guillermo Vilas | 6-3 6-4 |
| 1974 | Madrid | Clay | R16 | Guillermo Vilas | 6-3 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.