Head to head
1
Hard
0
0
Clay
2
Jan Kukal's wins on the left · Tom Okker's on the right · bar lengths share one scale
All meetings (3)
| 1969 | Hilversum | Clay | QF | Tom Okker | 6-3 7-5 |
| 1968 | Barranquilla | Clay | QF | Tom Okker | 6-3 7-5 |
| 1968 | Macon | Hard | R16 | Jan Kukal | 3-6 6-4 8-6 |
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.