Head to head
2
Hard
0
2
Carpet
0
Cliff Drysdale's wins on the left · Colin Dibley's on the right · bar lengths share one scale
All meetings (4)
| 1974 | Tucson | Hard | R64 | Cliff Drysdale | 6-4 6-1 |
| 1973 | Brussels WCT | Carpet | R16 | Cliff Drysdale | 6-4 6-4 |
| 1973 | St. Louis WCT | Carpet | R32 | Cliff Drysdale | 6-4 7-6(7) |
| 1971 | Berkeley WCT | Hard | R32 | Cliff Drysdale | 6-7 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.