Head to head
0
Hard
1
1
Clay
1
1
Carpet
0
Tom Okker's wins on the left · Karl Meiler's on the right · bar lengths share one scale
All meetings (4)
| 1978 | Wembley | Carpet | R32 | Tom Okker | 6-1 6-3 |
| 1976 | Lagos WCT | Hard | R16 | Karl Meiler | 6-3 6-3 |
| 1973 | Gstaad | Clay | QF | Karl Meiler | 6-4 7-5 |
| 1968 | Berlin | Clay | QF | Tom Okker | 6-2 11-9 6-2 |
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.