Head to head
1
Hard
1
5
Clay
4
3
Carpet
2
Harold Solomon's wins on the left · John Alexander's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (16)
| 1981 | Boston | Clay | R64 | John Alexander | 6-2 6-7 6-1 |
| 1980 | Las Vegas | Hard | R32 | Harold Solomon | 6-3 4-6 7-6 |
| 1979 | Louisville | Clay | QF | John Alexander | 6-3 6-4 |
| 1979 | Hamburg | Clay | R16 | Harold Solomon | 6-4 4-6 6-1 |
| 1978 | Louisville | Clay | F | Harold Solomon | 6-2 6-2 |
| 1977 | North Conway | Clay | SF | John Alexander | 6-4 6-1 |
| 1977 | Washington-2 | Clay | QF | Harold Solomon | 5-7 6-4 6-1 |
| 1977 | Cincinnati | Clay | SF | Harold Solomon | 7-5 7-5 |
| 1977 | Charlotte WCT | Clay | QF | John Alexander | 6-3 7-6(5) |
| 1977 | London WCT | Carpet | R16 | Harold Solomon | 6-2 6-4 |
| 1977 | St. Louis WCT | Carpet | SF | John Alexander | 4-6 6-4 7-5 |
| 1977 | Monterrey WCT | Carpet | R16 | Harold Solomon | 6-4 4-6 6-2 |
| 1976 | Boston | Clay | R16 | Harold Solomon | 6-2 6-1 |
| 1975 | Atlanta WCT | Carpet | SF | John Alexander | 6-4 6-2 |
| 1975 | Memphis WCT | Carpet | SF | Harold Solomon | 2-6 6-2 6-4 |
| 1975 | Fort Worth WCT | Hard | QF | John Alexander | 3-6 6-3 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.