Head to head
1
Hard
0
1
Clay
0
0
Grass
1
Milan Holecek's wins on the left · Onny Parun's on the right · bar lengths share one scale
All meetings (3)
| 1974 | Nottingham | Grass | R16 | Onny Parun | 6-4 5-7 6-2 |
| 1971 | Pensacola | Hard | R16 | Milan Holecek | 6-1 6-3 |
| 1968 | Munich | Clay | R32 | Milan Holecek | 6-0 5-7 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.