Head to head
1
Hard
2
2
Clay
2
5
Carpet
2
Stan Smith'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 (14)
| 1979 | Wembley | Carpet | QF | Harold Solomon | 6-4 6-4 |
| 1979 | Roland Garros | Clay | R32 | Harold Solomon | 3-6 1-6 6-3 6-1 8-6 |
| 1977 | Tokyo | Clay | QF | Harold Solomon | 6-2 6-1 |
| 1976 | Johannesburg-2 | Hard | SF | Harold Solomon | 6-3 4-6 7-5 |
| 1975 | Fort Worth WCT | Hard | R16 | Harold Solomon | 6-1 6-1 |
| 1975 | Toronto WCT | Carpet | F | Harold Solomon | 6-4 6-1 |
| 1973 | Rome | Clay | R16 | Stan Smith | 6-0 6-4 |
| 1973 | Gothenburg WCT | Carpet | R16 | Stan Smith | 6-1 6-1 |
| 1973 | Brussels WCT | Carpet | R32 | Stan Smith | 7-5 1-6 7-5 |
| 1973 | St. Louis WCT | Carpet | R32 | Stan Smith | 6-2 6-4 |
| 1973 | Toronto WCT | Carpet | R16 | Stan Smith | 6-4 6-3 |
| 1973 | Miami WCT | Hard | R32 | Stan Smith | 6-3 6-4 |
| 1972 | Salisbury | Carpet | R16 | Stan Smith | 7-6 6-1 |
| 1971 | Washington WCT | Clay | R64 | Stan Smith | 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.