Head to head
1
Clay
0
0
Grass
1
Patricio Cornejo's wins on the left · Allan Stone's on the right · bar lengths share one scale
All meetings (2)
| 1971 | Eastbourne | Grass | R16 | Allan Stone | 14-12 2-6 6-2 |
| 1968 | Catania | Clay | R16 | Patricio Cornejo | 6-0 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.