Head to head
1
Hard
0
2
Clay
4
3
Carpet
2
Mark Cox's wins on the left · Jan Kodes's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (12)
| 1977 | Oviedo | Carpet | QF | Jan Kodes | 6-4 7-6 |
| 1975 | London WCT | Carpet | SF | Mark Cox | 6-2 6-2 |
| 1974 | London WCT | Carpet | SF | Mark Cox | 6-4 6-4 |
| 1973 | Denver WCT | Carpet | R16 | Mark Cox | 6-3 2-6 6-4 |
| 1973 | Charlotte WCT | Clay | R16 | Mark Cox | 7-6 6-3 |
| 1973 | Cologne WCT | Carpet | SF | Jan Kodes | 6-3 6-7(6) 6-1 |
| 1970 | Barcelona | Clay | R16 | Jan Kodes | 4-6 6-1 6-2 6-2 |
| 1970 | Hamburg | Clay | QF | Jan Kodes | 6-3 6-3 6-1 |
| 1970 | Rome | Clay | QF | Jan Kodes | 5-7 6-3 6-2 6-2 |
| 1969 | Charlotte | Clay | F | Mark Cox | 13-11 6-2 |
| 1969 | Pittsburgh | Clay | SF | Jan Kodes | 3-6 6-4 7-5 |
| 1968 | Curacao | Hard | QF | Mark Cox | 6-1 6-3 |
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.