Head to head
1
Clay
0
1
Grass
0
Cliff Richey's wins on the left · Paul Gerken's on the right · bar lengths share one scale
All meetings (2)
| 1972 | US Open | Grass | R32 | Cliff Richey | 6-7 6-3 7-6 6-7 6-4 |
| 1970 | Indianapolis | Clay | R64 | Cliff Richey | 6-3 6-3 |
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.