Head to head
1
Clay
0
0
Carpet
3
Paolo Bertolucci's wins on the left · Onny Parun's on the right · bar lengths share one scale
All meetings (4)
| 1975 | Stockholm WCT | Carpet | R32 | Onny Parun | 6-3 6-1 |
| 1975 | Bologna WCT | Carpet | R16 | Onny Parun | 3-6 6-3 6-1 |
| 1975 | Richmond WCT | Carpet | R16 | Onny Parun | 7-6(5) 6-3 |
| 1974 | Florence | Clay | SF | Paolo Bertolucci | 5-7 6-4 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.