Mary Pierce defeated Lilia Osterloh 6-1 6-1 in the Key Biscayne round of 64 on hard. The upset overturned the form book — Lilia Osterloh came in leading the head-to-head 1–0. Mary Pierce claimed a first win over Lilia Osterloh in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-01-31 | Tokyo | R16 | hard | Lilia Osterloh | 6-7(3) 6-4 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 (61 vs 52). ATP, WTA & Challenger.