Head to head
1
Hard
0
2
Carpet
1
Allan Stone's wins on the left · Frank Froehling's on the right · bar lengths share one scale
All meetings (4)
| 1973 | Toronto WCT | Carpet | R32 | Allan Stone | 6-2 6-7(6) 6-1 |
| 1973 | Richmond WCT | Carpet | R32 | Frank Froehling | 7-6(2) 7-5 |
| 1972 | Johannesburg WCT | Hard | R16 | Allan Stone | 6-4 6-0 |
| 1972 | Gothenburg WCT | Carpet | R32 | Allan Stone | 6-2 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.