Head to head
0
Hard
2
1
Grass
4
0
Carpet
1
Premjit Lall's wins on the left · Clark Graebner's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (8)
| 1971 | Beckenham | Grass | SF | Premjit Lall | 6-3 8-9 RET |
| 1970 | Wimbledon | Grass | R32 | Clark Graebner | 6-0 6-2 6-1 |
| 1970 | Philadelphia | Carpet | R64 | Clark Graebner | 6-1 4-6 6-4 |
| 1970 | Omaha | Hard | R16 | Clark Graebner | 6-4 6-2 |
| 1968 | Davis Cup WG F: USA vs IND | Hard | RR | Clark Graebner | 9-11 9-7 7-5 6-4 |
| 1968 | US Open | Grass | R128 | Clark Graebner | 6-3 1-6 7-5 6-4 |
| 1968 | Boston-2 | Grass | R16 | Clark Graebner | 6-3 6-4 10-8 |
| 1968 | Queen's Club | Grass | R64 | Clark Graebner | 6-1 6-4 |
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.