Agnieszka Radwanska defeated Caroline Wozniacki 6-4 6-1 in the Stockholm quarter-final on hard. The upset overturned the form book — Caroline Wozniacki came in leading the head-to-head 11–5, defending last year's quarter-final. Agnieszka Radwanska narrowed the head-to-head to 11–6.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-08-07 | Toronto | R16 | hard | Caroline Wozniacki | 6-3 6-1 |
| 2017-02-13 | Doha | R16 | hard | Caroline Wozniacki | 7-5 6-3 |
| 2016-10-03 | Beijing | R16 | hard | Agnieszka Radwanska | 6-3 6-1 |
| 2016-09-26 | Wuhan | R16 | hard | Agnieszka Radwanska | 6-4 6-2 |
| 2016-09-19 | Tokyo | SF | hard | Caroline Wozniacki | 4-6 7-5 6-4 |
| 2015-05-04 | Madrid | R16 | clay | Caroline Wozniacki | 6-3 6-2 |
| 2014-10-20 | WTA Finals | RR | hard | Caroline Wozniacki | 7-5 6-3 |
| 2014-08-11 | Cincinnati | QF | hard | Caroline Wozniacki | 6-4 7-6(5) |
| 2013-02-11 | Doha | QF | hard | Agnieszka Radwanska | 6-2 7-5 |
| 2012-09-24 | Tokyo | QF | hard | Agnieszka Radwanska | 6-4 6-3 |
| 2012-01-09 | Sydney | QF | hard | Agnieszka Radwanska | 3-6 7-5 6-2 |
| 2011-10-24 | WTA Championships | RR | hard | Caroline Wozniacki | 5-7 6-2 6-4 |
| 2011-04-18 | Stuttgart | SF | clay | Caroline Wozniacki | 7-5 6-3 |
| 2010-09-27 | Tokyo | QF | hard | Caroline Wozniacki | 5-0 RET |
| 2010-03-08 | Indian Wells | SF | hard | Caroline Wozniacki | 6-2 6-3 |
| 2008-07-28 | Stockholm | SF | hard | Caroline Wozniacki | 6-4 6-1 |
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 (198 vs 199). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About