Head to head
Rivalry summary
Russell Simpson and Jaime Fillol Sr. met 2 times on the ATP tour between 1979 and 1979. Their head-to-head is level at 1–1.
0
Hard
1
1
Carpet
0
Russell Simpson's wins on the left · Jaime Fillol Sr.'s on the right · bar lengths share one scale
All meetings (2)
| 1979 | Tulsa | Hard | R32 | Jaime Fillol Sr. | 6-4 6-3 |
| 1979 | Richmond WCT | Carpet | R32 | Russell Simpson | 6-1 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.