Michael Chang defeated Cecil Mamiit 6-2 6-3 in the San Jose round of 16 on hard. The upset overturned the form book — Cecil Mamiit came in leading the head-to-head 2–0, defending last year's final. Michael Chang claimed a first win over Cecil Mamiit in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-10-09 | Tokyo | R32 | hard | Cecil Mamiit | 7-5 6-4 |
| 1999-02-08 | San Jose | SF | hard | Cecil Mamiit | 3-6 6-3 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 (140 vs 94). ATP, WTA & Challenger.