Head to head
1
Grass
0
0
Carpet
1
Jaime Fillol Sr.'s wins on the left · Sandy Mayer's on the right · bar lengths share one scale
All meetings (2)
| 1978 | St. Louis WCT | Carpet | R32 | Sandy Mayer | 7-6 6-7 6-2 |
| 1971 | US Open | Grass | R128 | Jaime Fillol Sr. | 6-0 6-7 6-1 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.