Head to head
2
Hard
1
1
Grass
0
1
Carpet
1
Mark Cox's wins on the left · Tom Edlefsen's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 1975 | Toronto WCT | Carpet | R32 | Mark Cox | 6-0 6-4 |
| 1974 | Barcelona WCT | Carpet | R32 | Tom Edlefsen | 6-1 7-6(3) |
| 1969 | San Juan | Hard | R16 | Tom Edlefsen | 7-5 6-3 |
| 1969 | Omaha | Hard | QF | Mark Cox | 7-5 7-5 |
| 1968 | Dublin | Grass | QF | Mark Cox | 6-4 6-2 |
| 1968 | San Juan | Hard | QF | Mark Cox | 6-3 6-4 |
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.