Head to head
0
Hard
1
1
Clay
2
1
Grass
0
Onny Parun's wins on the left · Pierre Barthes's on the right · bar lengths share one scale
All meetings (5)
| 1974 | Roland Garros | Clay | R32 | Onny Parun | 2-6 3-6 6-1 6-2 6-4 |
| 1972 | Paris | Hard | R32 | Pierre Barthes | 7-6 6-2 |
| 1972 | Nice | Clay | R32 | Pierre Barthes | 6-4 0-6 7-5 |
| 1971 | Clemmons | Clay | R16 | Pierre Barthes | 6-3 6-7 6-4 |
| 1971 | Wimbledon | Grass | R32 | Onny Parun | 6-2 4-6 9-7 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.