Head to head
4
Hard
0
2
Clay
1
1
Carpet
1
Cliff Richey's wins on the left · Mark Cox's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (9)
| 1975 | Atlanta WCT | Carpet | SF | Mark Cox | 6-2 6-2 |
| 1975 | Toronto WCT | Carpet | R16 | Cliff Richey | 7-5 4-6 7-6(6) |
| 1974 | Lakeway WCT | Hard | QF | Cliff Richey | 3-6 6-1 6-4 |
| 1972 | Louisville WCT | Clay | R16 | Mark Cox | 6-7 6-3 6-3 |
| 1972 | Charlotte WCT | Clay | QF | Cliff Richey | 1-6 6-3 6-1 |
| 1971 | Charlotte | Clay | QF | Cliff Richey | 6-4 6-2 |
| 1969 | Curacao | Hard | F | Cliff Richey | 6-4 6-3 6-3 |
| 1969 | Omaha | Hard | SF | Cliff Richey | 6-4 6-4 |
| 1968 | Salisbury | Hard | R16 | Cliff Richey | 6-4 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.