Head to head
2
Clay
1
1
Carpet
2
Manuel Orantes's wins on the left · John McEnroe's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 1979 | Indianapolis | Clay | QF | John McEnroe | 6-3 6-3 |
| 1978 | Washington-2 | Clay | R16 | Manuel Orantes | 6-7 6-1 7-5 |
| 1978 | Washington-1 | Carpet | QF | Manuel Orantes | 4-6 6-4 6-3 |
| 1978 | Philadelphia WCT | Carpet | R16 | John McEnroe | 7-6 6-2 |
| 1977 | San Francisco | Carpet | R16 | John McEnroe | 6-4 6-4 |
| 1977 | US Open | Clay | R16 | Manuel Orantes | 6-2 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.