Head to head
0
Clay
1
1
Grass
0
Mark Cox's wins on the left · Ray Keldie's on the right · bar lengths share one scale
All meetings (2)
| 1973 | Barcelona-2 | Clay | R64 | Ray Keldie | 4-0 RET |
| 1971 | US Open | Grass | R128 | Mark Cox | 7-5 6-0 7-6 |
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.