By surface
| Surface | Tommy Haas | Michael Chang |
|---|---|---|
| Hard | 0 | 2 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2002-08-05 | ATP | Cincinnati Masters | Round of 64 | Hard | Michael Chang | 3-6 | 2-6 | |||
| 1998-02-09 | ATP | San Jose | Quarterfinal | Hard | Michael Chang | 3-6 | 7-63 | 4-6 |