Head to head
1
Hard
1
0
Clay
1
0
Carpet
2
Michael Chang's wins on the left · John McEnroe's on the right · bar lengths share one scale
All meetings (5)
| 1991 | US Open | Hard | R32 | Michael Chang | 6-4 4-6 7-6(1) 2-6 6-3 |
| 1989 | Masters | Carpet | RR | John McEnroe | 6-2 5-7 6-4 |
| 1989 | Paris | Carpet | QF | John McEnroe | 6-4 6-3 |
| 1988 | Los Angeles | Hard | R16 | John McEnroe | 6-2 6-4 |
| 1988 | Roland Garros | Clay | R32 | John McEnroe | 6-0 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.