Head to head
0
Clay
2
0
Grass
1
1
Carpet
2
Haroon Rahim'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 (6)
| 1977 | Philadelphia WCT | Carpet | R64 | John Alexander | 6-4 4-6 7-6(5) |
| 1975 | Chicago | Carpet | QF | John Alexander | 6-7 7-6 6-1 |
| 1975 | Roland Garros | Clay | R64 | John Alexander | 7-6 6-0 |
| 1975 | Houston WCT | Clay | R32 | John Alexander | 6-2 6-2 |
| 1972 | Cleveland WCT | Carpet | R32 | Haroon Rahim | 7-6 4-6 6-4 |
| 1971 | US Open | Grass | R32 | John Alexander | 6-7 4-6 6-0 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.