Head to head
1
Clay
3
Patricio Cornejo's wins on the left · Victor Pecci's on the right · bar lengths share one scale
All meetings (4)
| 1977 | Santiago | Clay | QF | Victor Pecci | 6-2 4-6 6-3 |
| 1977 | Louisville | Clay | R16 | Victor Pecci | 6-4 6-4 |
| 1976 | Buenos Aires | Clay | R16 | Victor Pecci | 6-2 6-0 |
| 1973 | Buenos Aires | Clay | R32 | Patricio Cornejo | 6-2 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.