Head to head
1
Clay
0
Allan Stone's wins on the left · Eduardo Zuleta's on the right · bar lengths share one scale
All meetings (1)
| 1968 | Reggio Calabria | Clay | R32 | Allan Stone | 6-3 8-6 |
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.