Head to head
0
Hard
1
0
Clay
1
1
Grass
0
0
Carpet
1
Allan Stone's wins on the left · Sherwood Stewart's on the right · bar lengths share one scale
All meetings (4)
| 1978 | Sydney-1 | Hard | R32 | Sherwood Stewart | 5-7 6-4 6-4 |
| 1978 | San Francisco | Carpet | R32 | Sherwood Stewart | 6-7 6-3 7-5 |
| 1972 | Washington WCT | Clay | R64 | Sherwood Stewart | 6-3 6-0 |
| 1968 | Southampton | Grass | R16 | Allan Stone | 6-2 4-6 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.