Head to head
1
Grass
0
1
Carpet
0
John McEnroe's wins on the left · Karl Meiler's on the right · bar lengths share one scale
All meetings (2)
| 1978 | Bologna | Carpet | QF | John McEnroe | 6-3 6-4 |
| 1977 | Wimbledon | Grass | R32 | John McEnroe | 6-2 6-2 5-7 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.