Head to head
1
Hard
2
0
Carpet
1
Onny Parun's wins on the left · Cliff Drysdale's on the right · bar lengths share one scale
All meetings (4)
| 1977 | Las Vegas | Hard | R32 | Cliff Drysdale | 6-3 2-6 6-3 |
| 1977 | Rotterdam WCT | Carpet | R16 | Cliff Drysdale | 7-6(4) 7-6(4) |
| 1976 | Johannesburg WCT | Hard | F | Onny Parun | 7-6 6-3 |
| 1973 | Johannesburg-2 | Hard | R16 | Cliff Drysdale | 6-4 7-5 6-3 |
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.