Head to head
1
Clay
0
0
Grass
1
Cliff Drysdale's wins on the left · Mal Anderson's on the right · bar lengths share one scale
All meetings (2)
| 1969 | Portschach | Clay | RR | Cliff Drysdale | 6-4 6-8 8-6 |
| 1968 | Boston-1 | Grass | R16 | Mal Anderson | 6-2 5-7 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.