Head to head
1
Hard
0
0
Clay
2
1
Carpet
0
Allan Stone's wins on the left · Manuel Orantes's on the right · bar lengths share one scale
All meetings (4)
| 1976 | US Open | Clay | R32 | Manuel Orantes | 6-2 6-4 |
| 1974 | Tucson | Hard | R64 | Allan Stone | 2-6 7-6 6-3 |
| 1974 | Washington WCT | Carpet | R32 | Allan Stone | 7-5 7-5 |
| 1970 | Roland Garros | Clay | R32 | Manuel Orantes | 6-3 6-3 6-0 |
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.