Head to head
1
Hard
0
1
Clay
0
Cliff Richey's wins on the left · William Alvarez's on the right · bar lengths share one scale
All meetings (2)
| 1970 | Houston | Clay | R32 | Cliff Richey | 6-2 7-5 |
| 1969 | Curacao | Hard | R16 | Cliff Richey | 6-1 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.