Head to head
2
Hard
0
1
Grass
0
John McEnroe's wins on the left · Colin Dowdeswell's on the right · bar lengths share one scale
All meetings (3)
| 1984 | US Open | Hard | R128 | John McEnroe | 6-1 6-1 6-1 |
| 1978 | US Open | Hard | R16 | John McEnroe | 7-6 6-3 6-3 |
| 1977 | Wimbledon | Grass | R64 | John McEnroe | 9-7 6-3 6-1 |
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.