Head to head
1
Grass
0
1
Carpet
0
Manuel Santana's wins on the left · Robert McKinley's on the right · bar lengths share one scale
All meetings (2)
| 1971 | New York | Carpet | R32 | Manuel Santana | 1-6 6-4 6-0 |
| 1969 | US Open | Grass | R32 | Manuel Santana | 6-4 6-4 7-9 6-2 |
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.