Head to head
1
Hard
1
0
Clay
1
0
Grass
1
0
Carpet
1
Colin Dibley's wins on the left · Cliff Richey's on the right · bar lengths share one scale
All meetings (5)
| 1977 | Las Vegas | Hard | R32 | Colin Dibley | 6-3 2-6 6-4 |
| 1972 | Washington-1 | Carpet | R32 | Cliff Richey | 6-4 6-1 |
| 1971 | Sacramento | Hard | R16 | Cliff Richey | 6-2 4-6 7-6 |
| 1971 | Roland Garros | Clay | R32 | Cliff Richey | 6-1 6-3 8-6 |
| 1968 | Bristol | Grass | R32 | Cliff Richey | 6-4 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.