Head to head
2
Hard
0
1
Clay
1
Cliff Richey's wins on the left · Pancho J.F. Guzman's on the right · bar lengths share one scale
All meetings (5)
| 1970 | Queen's Club | Grass | R32 | Cliff Richey | W/O |
| 1968 | Houston-2 | Clay | QF | Cliff Richey | 6-1 6-1 |
| 1968 | Barranquilla | Clay | R16 | Pancho J.F. Guzman | 6-4 2-6 6-3 |
| 1968 | Macon | Hard | R16 | Cliff Richey | 3-6 6-4 6-4 |
| 1968 | Salisbury | Hard | R32 | 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.