Samantha Stosur defeated Na Li 6-1 6-0 in the WTA Championships round robin on hard. The result followed the form book — Samantha Stosur came in leading the head-to-head 5–1, defending last year's semi-final. Samantha Stosur extended the head-to-head to 6–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-05-12 | Rome | R16 | clay | Na Li | 6-3 6-1 |
| 2011-08-15 | Cincinnati | R16 | hard | Samantha Stosur | 6-4 3-6 6-4 |
| 2011-08-08 | Toronto | R16 | hard | Samantha Stosur | 6-2 6-4 |
| 2011-05-09 | Rome | SF | clay | Samantha Stosur | 7-6(6) 6-0 |
| 2010-04-26 | Stuttgart | QF | clay | Samantha Stosur | 6-3 6-3 |
| 2007-01-29 | Tokyo | R16 | hard | Samantha Stosur | 6-2 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 (197 vs 176). ATP, WTA & Challenger.