Head to head
1
Clay
2
0
Grass
1
0
Carpet
3
Ismail El Shafei's wins on the left · Cliff Drysdale's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (7)
| 1974 | Richmond WCT | Carpet | R16 | Cliff Drysdale | 6-2 6-4 |
| 1972 | Louisville WCT | Clay | R16 | Cliff Drysdale | 6-3 6-4 |
| 1972 | Denver WCT | Carpet | R32 | Cliff Drysdale | 7-5 6-2 |
| 1972 | Richmond WCT | Carpet | R32 | Cliff Drysdale | 6-1 7-5 |
| 1971 | Bristol WCT | Grass | R32 | Cliff Drysdale | 4-6 6-4 6-4 |
| 1971 | Brussels | Clay | SF | Cliff Drysdale | 6-4 6-0 6-2 |
| 1971 | Tehran WCT | Clay | R32 | Ismail El Shafei | 3-6 6-4 7-6 |
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.