Head to head
2
Grass
0
Onny Parun's wins on the left · Jeff Simpson's on the right · bar lengths share one scale
All meetings (2)
| 1975 | Auckland | Grass | SF | Onny Parun | 6-3 6-3 6-3 |
| 1973 | US Open | Grass | R32 | Onny Parun | 3-6 6-3 7-6 6-1 |
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.