Mariana Diaz Oliva defeated Maureen Drake 7-5 6-2 in the Indian Wells q32 on hard. The upset overturned the form book — Maureen Drake came in leading the head-to-head 1–0, but Mariana Diaz Oliva had been the form player, winning 4 of their last 7 on hard. Mariana Diaz Oliva claimed a first win over Maureen Drake in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-10-11 | Ashburn VA 50K | R16 | hard | Maureen Drake | 6-1 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.