By surface
| Surface | Michael Chang | Gary Muller |
|---|---|---|
| Hard | 1 | 1 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1991-04-01 | ATP | Hong Kong | Quarterfinal | Hard | Gary Muller | 7-5 | 3-6 | 6-71 | ||
| 1990-07-30 | ATP | Los Angeles | Semifinal | Hard | Michael Chang | 7-6 | 6-2 |