Mary Pierce defeated Nadia Petrova 6-2 6-1 in the Olympics round of 32 on hard. The upset overturned the form book — Nadia Petrova came in leading the head-to-head 2–1. Mary Pierce narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-05-02 | Berlin | R16 | grass | Nadia Petrova | 6-2 7-5 |
| 2005-03-09 | Indian Wells | R16 | hard | Mary Pierce | 6-2 6-2 |
| 2001-05-14 | Rome | R64 | clay | Nadia Petrova | 6-2 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 (52 vs 200). ATP, WTA & Challenger.