Nadia Petrova defeated Bethanie Mattek Sands 6-3 6-2 in the New Haven round of 16 on hard. The result followed the form book — Nadia Petrova came in leading the head-to-head 2–0, defending last year's round of 32. Nadia Petrova extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-07-27 | Stanford | R32 | hard | Nadia Petrova | 6-3 3-6 6-3 |
| 2008-10-27 | Quebec City | F | hard | Nadia Petrova | 4-6 6-4 6-1 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.