Head to head
3
Clay
1
1
Grass
0
1
Carpet
0
Jan Kodes's wins on the left · Onny Parun's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 1979 | Stuttgart-2 | Clay | R32 | Jan Kodes | 6-1 6-3 |
| 1976 | Philadelphia WCT | Carpet | R32 | Jan Kodes | 6-3 6-3 |
| 1975 | Bournemouth | Clay | QF | Onny Parun | 1-6 6-4 6-3 |
| 1972 | Wimbledon | Grass | QF | Jan Kodes | 6-2 6-3 6-4 |
| 1968 | Hamburg | Clay | R64 | Jan Kodes | 3-6 6-3 3-6 6-3 6-2 |
| 1968 | Rome | Clay | R128 | Jan Kodes | 6-3 4-6 6-2 2-6 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.