Monica Seles defeated Mary Pierce 1-6 6-2 6-2 in the US Open round of 16 on hard. The upset overturned the form book — Mary Pierce came in leading the head-to-head 4–1, but Monica Seles had been the form player, winning 3 of their last 4 on hard. Monica Seles narrowed the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-05-29 | Roland Garros | QF | clay | Mary Pierce | 4-6 6-3 6-4 |
| 2000-04-17 | Hilton Head | SF | clay | Mary Pierce | 6-1 6-1 |
| 1998-10-20 | Kremlin Cup | F | carpet | Mary Pierce | 7-6 6-3 |
| 1997-05-26 | Roland Garros | R16 | clay | Monica Seles | 6-4 7-5 |
| 1997-05-05 | Rome | R16 | clay | Mary Pierce | 7-6 7-6 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About
Averages over each player's completed matches in the selected window (1 vs 61). ATP, WTA & Challenger.