Head to head
2
Hard
1
1
Carpet
0
Mark Cox's wins on the left · Erik Van Dillen's on the right · bar lengths share one scale
All meetings (4)
| 1976 | Paris | Hard | QF | Mark Cox | 6-4 1-6 6-2 |
| 1974 | Tucson | Hard | R64 | Mark Cox | 2-6 6-2 6-1 |
| 1973 | Denver WCT | Carpet | R32 | Mark Cox | 6-4 6-4 |
| 1970 | Los Angeles-2 | Hard | R64 | Erik Van Dillen | 2-6 7-6 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.