Patty Schnyder defeated Mary Pierce 7-6 6-2 in the Charleston round of 16 on clay. The upset overturned the form book — Mary Pierce came in leading the head-to-head 5–1, defending last year's round of 16. Patty Schnyder narrowed the head-to-head to 5–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-02-06 | Paris | SF | carpet | Mary Pierce | 6-4 6-2 |
| 2005-08-01 | San Diego | QF | hard | Mary Pierce | 6-4 6-3 |
| 2005-05-23 | Roland Garros | R16 | clay | Mary Pierce | 6-1 1-6 6-4 |
| 2002-05-13 | Rome | R32 | clay | Mary Pierce | 6-3 1-6 6-2 |
| 1999-01-03 | Hope Island | F | hard | Patty Schnyder | 4-6 7-6 6-2 |
| 1997-04-28 | Hamburg | R32 | clay | Mary Pierce | 6-1 6-1 |
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 61). ATP, WTA & Challenger.