Head to head
1
Hard
1
5
Clay
0
1
Carpet
0
Cliff Drysdale's wins on the left · Robert Maud's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (8)
| 1973 | Atlanta WCT | Carpet | QF | Cliff Drysdale | 6-2 6-3 |
| 1972 | Charlotte WCT | Clay | R32 | Cliff Drysdale | 7-5 0-6 6-2 |
| 1972 | Hollywood WCT | Clay | R32 | Cliff Drysdale | 6-2 6-2 |
| 1971 | Louisville WCT | Clay | R32 | Cliff Drysdale | 6-4 6-3 |
| 1971 | Washington WCT | Clay | R32 | Cliff Drysdale | 6-4 6-4 |
| 1971 | Rome WCT | Clay | R32 | Cliff Drysdale | 6-2 5-7 6-1 |
| 1969 | Durban | Hard | QF | Robert Maud | 6-1 6-4 8-6 |
| 1969 | Johannesburg | Hard | R16 | Cliff Drysdale | 5-7 6-2 2-6 6-4 7-5 |
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.