Head to head
1
Hard
1
1
Grass
1
Haroon Rahim's wins on the left · Jeff Borowiak's on the right · bar lengths share one scale
All meetings (4)
| 1975 | Maui | Hard | QF | Haroon Rahim | 6-2 6-4 |
| 1975 | Nottingham | Grass | R64 | Jeff Borowiak | 4-6 6-3 6-2 |
| 1974 | Oslo | Hard | QF | Jeff Borowiak | 6-4 6-0 |
| 1968 | South Orange | Grass | R64 | Haroon Rahim | 11-9 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.