Na Li defeated Nadia Petrova 6-1 6-2 in the Beijing round of 32 on hard. The upset overturned the form book — Nadia Petrova came in leading the head-to-head 6–0, defending last year's round of 64. Na Li claimed a first win over Nadia Petrova in seven meetings, narrowing the head-to-head to 6–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-09-29 | Stuttgart | QF | clay | Nadia Petrova | 6-2 6-3 |
| 2008-06-16 | Eastbourne | R16 | grass | Nadia Petrova | 6-2 6-7(5) 6-3 |
| 2006-05-08 | Berlin | SF | grass | Nadia Petrova | 6-1 6-0 |
| 2006-02-27 | Doha | QF | hard | Nadia Petrova | 6-4 6-4 |
| 2005-08-15 | Toronto | R16 | hard | Nadia Petrova | 6-2 3-0 RET |
| 2005-01-03 | Gold Coast | R16 | hard | Nadia Petrova | 7-5 6-3 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.