Head to head
0
Clay
1
1
Grass
0
1
Carpet
1
Haroon Rahim's wins on the left · Paul Gerken's on the right · bar lengths share one scale
All meetings (4)
| 1975 | Toronto WCT | Carpet | R32 | Paul Gerken | 7-6(4) 7-6(2) |
| 1974 | London WCT | Carpet | R32 | Haroon Rahim | 5-7 6-3 6-2 |
| 1973 | Indianapolis | Clay | R64 | Paul Gerken | 3-6 7-6 6-4 |
| 1971 | US Open | Grass | R64 | Haroon Rahim | 2-6 3-6 6-2 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.