Guillermo Canas defeated Michael Chang 5-7 7-5 6-2 in the Cincinnati Masters round of 32 on hard. The upset overturned the form book — Michael Chang came in leading the head-to-head 1–0, defending last year's round of 64. Guillermo Canas claimed a first win over Michael Chang in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-08-13 | Washington | R16 | hard | Michael Chang | 7-5 2-6 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (200 vs 73). ATP, WTA & Challenger.