Head to head
2
Hard
0
3
Clay
5
3
Carpet
2
Guillermo Vilas's wins on the left · Harold Solomon's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (15)
| 1981 | Masters | Carpet | RR | Guillermo Vilas | 5-7 7-6 7-5 |
| 1980 | Roland Garros | Clay | QF | Harold Solomon | 1-6 6-4 7-6 7-5 |
| 1980 | Hamburg | Clay | F | Harold Solomon | 6-7 6-2 6-4 2-6 6-3 |
| 1980 | Masters | Carpet | RR | Harold Solomon | 6-2 6-2 |
| 1977 | US Open | Clay | SF | Guillermo Vilas | 6-2 7-6 6-2 |
| 1977 | Palm Springs | Hard | QF | Guillermo Vilas | 6-4 6-7 6-0 |
| 1976 | Masters | Carpet | RR | Guillermo Vilas | 6-3 4-6 6-4 |
| 1976 | Roland Garros | Clay | QF | Harold Solomon | 6-1 0-6 7-6 6-1 |
| 1976 | Fort Worth WCT | Hard | QF | Guillermo Vilas | 6-2 6-3 |
| 1975 | Masters | Carpet | RR | Guillermo Vilas | 6-3 6-4 |
| 1975 | Washington-2 | Clay | F | Guillermo Vilas | 6-1 6-3 |
| 1974 | Louisville | Clay | QF | Guillermo Vilas | 6-3 6-1 |
| 1974 | Washington-2 | Clay | F | Harold Solomon | 1-6 6-3 6-4 |
| 1974 | Sao Paulo WCT | Carpet | R16 | Harold Solomon | 6-4 6-2 |
| 1972 | Roland Garros | Clay | R16 | Harold Solomon | 3-6 8-10 6-2 6-4 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.