Head to head
Rivalry summary
Guillermo Perez-Roldan and Jaime Oncins met 1 times on the ATP tour between 1991 and 1991. Guillermo Perez-Roldan leads the head-to-head 1–0 against Jaime Oncins.
1
Hard
0
Guillermo Perez-Roldan's wins on the left · Jaime Oncins's on the right · bar lengths share one scale
All meetings (1)
| 1991 | Guaruja | Hard | R32 | Guillermo Perez-Roldan | 6-4 2-6 7-6(8) |
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.