Na Li defeated Flavia Pennetta 6-2 6-2 in the Australian Open quarter-final on hard. The upset overturned the form book — Flavia Pennetta came in leading the head-to-head 3–1. Na Li narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-03-03 | Indian Wells | SF | hard | Flavia Pennetta | 7-6(5) 6-3 |
| 2010-01-11 | Sydney | R16 | hard | Flavia Pennetta | 6-2 7-6(4) |
| 2006-01-09 | Sydney | R32 | hard | Na Li | 6-4 6-1 |
| 2006-01-02 | Gold Coast | R16 | hard | Flavia Pennetta | 6-2 6-2 |
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 (28 vs 78). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About