Head to head
Rivalry summary
Jaime Fillol Sr. and William Brown met 2 times on the ATP tour between 1972 and 1973. Jaime Fillol Sr. leads the head-to-head 2–0 against William Brown. By surface, Sr. leads 2–0 on hard.
2
Hard
0
Jaime Fillol Sr.'s wins on the left · William Brown's on the right · bar lengths share one scale
All meetings (2)
| 1973 | Fort Worth | Hard | R32 | Jaime Fillol Sr. | 3-6 6-3 6-2 |
| 1972 | Los Angeles-2 | Hard | R64 | Jaime Fillol Sr. | 4-2 RET |
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.