Nadia Petrova defeated Mariana Diaz Oliva 6-2 6-4 in the Amelia Island round of 64 on clay. The result followed the form book — Nadia Petrova came in leading the head-to-head 3–0, defending last year's round of 64. Nadia Petrova extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-01-02 | Auckland | R32 | hard | Nadia Petrova | 6-2 6-2 |
| 2005-06-13 | s Hertogenbosch | R16 | grass | Nadia Petrova | 6-3 6-4 |
| 2001-08-06 | Los Angeles | R64 | hard | Nadia Petrova | 6-1 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 (200 vs 22). ATP, WTA & Challenger.