Head to head
0
Grass
1
1
Carpet
0
Allan Stone's wins on the left · Paul Gerken's on the right · bar lengths share one scale
All meetings (2)
| 1975 | Baltimore | Carpet | QF | Allan Stone | 6-7 6-4 7-6 |
| 1973 | South Orange | Grass | R16 | Paul Gerken | 6-7 6-4 6-3 |
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.