Head to head
1
Hard
0
1
Grass
0
Onny Parun's wins on the left · Henry Pfister's on the right · bar lengths share one scale
All meetings (2)
| 1981 | Bristol | Grass | R32 | Onny Parun | 7-5 6-3 |
| 1977 | Palm Springs | Hard | R64 | Onny Parun | 7-6 4-6 6-0 |
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.