Head to head
1
Clay
0
0
Carpet
1
Onny Parun's wins on the left · Rolf Thung's on the right · bar lengths share one scale
All meetings (2)
| 1977 | Hilversum | Clay | R32 | Onny Parun | 7-5 6-1 |
| 1975 | San Francisco | Carpet | R32 | Rolf Thung | 6-3 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.