Amy Frazier defeated Mary Pierce 6-3 7-6 in the US Open round of 32 on hard. The upset overturned the form book — Mary Pierce came in leading the head-to-head 2–1, defending last year's quarter-final, but Amy Frazier had been the form player, winning 4 of their last 8 on hard. Amy Frazier narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-04-16 | Charleston | R16 | clay | Amy Frazier | 7-5 6-7 6-4 |
| 1999-03-05 | Indian Wells | R32 | hard | Mary Pierce | 6-0 6-3 |
| 1997-07-28 | San Diego | R32 | hard | Mary Pierce | 6-3 6-7 6-3 |
Averages over each player's completed matches in the selected window (34 vs 61). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About