Head to head
1
Hard
2
2
Clay
0
Jaime Fillol Sr.'s wins on the left · Francisco Gonzalez's on the right · bar lengths share one scale
All meetings (5)
| 1983 | Caracas | Hard | R16 | Francisco Gonzalez | 2-6 7-6 6-3 |
| 1981 | Buenos Aires | Clay | R32 | Jaime Fillol Sr. | 6-2 6-3 |
| 1979 | Cincinnati | Hard | R32 | Francisco Gonzalez | 6-4 3-6 6-1 |
| 1979 | Tulsa | Hard | R16 | Jaime Fillol Sr. | 6-4 6-1 |
| 1977 | Barcelona | Clay | R32 | Jaime Fillol Sr. | 6-2 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.