Head to head
0
Hard
3
0
Clay
2
1
Grass
0
1
Carpet
3
Charlie Pasarell'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 (10)
| 1975 | Boston | Clay | R64 | John Alexander | 7-6 6-2 |
| 1975 | Las Vegas | Hard | R32 | John Alexander | 6-3 7-5 |
| 1974 | Louisville | Clay | R32 | John Alexander | 7-6 6-4 |
| 1973 | Alamo | Hard | R16 | John Alexander | 7-6 6-4 |
| 1973 | Munich WCT | Carpet | R16 | John Alexander | 6-4 6-2 |
| 1973 | Toronto WCT | Carpet | R32 | John Alexander | 6-7(5) 6-1 6-4 |
| 1972 | Alamo WCT | Hard | R32 | John Alexander | 6-4 6-4 |
| 1972 | Denver WCT | Carpet | R16 | John Alexander | 6-4 6-7 6-3 |
| 1971 | Denver | Carpet | 3rd/4th | Charlie Pasarell | 6-4 6-4 |
| 1969 | Melbourne | Grass | R16 | Charlie Pasarell | 20-18 6-4 7-5 |
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.