Head to head
0
Hard
1
1
Clay
0
1
Carpet
1
Frew McMillan's wins on the left · Onny Parun's on the right · bar lengths share one scale
All meetings (4)
| 1980 | Johannesburg-1 | Hard | R32 | Onny Parun | 6-4 6-1 |
| 1975 | Stockholm WCT | Carpet | R16 | Onny Parun | 6-4 3-6 6-4 |
| 1972 | Albany | Carpet | R16 | Frew McMillan | 4-6 7-5 7-6 |
| 1969 | Roland Garros | Clay | R128 | Frew McMillan | 6-3 6-4 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.