Head to head
0
Hard
1
1
Clay
1
0
Grass
1
Allan Stone's wins on the left · Andres Gimeno's on the right · bar lengths share one scale
All meetings (4)
| 1973 | Gstaad | Clay | R32 | Allan Stone | 6-4 8-6 |
| 1971 | Fort Worth WCT | Hard | R32 | Andres Gimeno | 7-6 6-7 6-3 |
| 1971 | Tehran WCT | Clay | R32 | Andres Gimeno | 6-4 6-1 |
| 1970 | Wimbledon | Grass | R64 | Andres Gimeno | 7-5 4-6 6-3 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.