Head to head
3
Hard
1
0
Clay
2
2
Carpet
1
Marty Riessen's wins on the left · Cliff Richey's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (9)
| 1979 | Baltimore | Carpet | R32 | Marty Riessen | 6-2 6-4 |
| 1973 | Boston | Hard | QF | Cliff Richey | 6-4 1-6 7-6 |
| 1973 | Hilton Head WCT | Clay | R16 | Cliff Richey | 6-1 6-1 |
| 1972 | Rotterdam WCT | Carpet | R16 | Marty Riessen | 6-3 6-2 |
| 1972 | Fort Worth WCT | Hard | R16 | Marty Riessen | 6-2 6-3 |
| 1970 | Boston | Hard | R32 | Marty Riessen | 2-6 6-4 6-3 |
| 1970 | Philadelphia | Carpet | R32 | Cliff Richey | 6-4 6-2 |
| 1968 | Milwaukee | Clay | QF | Cliff Richey | 6-4 6-2 6-2 |
| 1968 | Caracas | Hard | F | Marty Riessen | 6-1 8-6 6-1 |
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.