Shahar Peer defeated Agnieszka Radwanska 6-4 6-1 in the US Open round of 16 on hard. The upset overturned the form book — Agnieszka Radwanska came in leading the head-to-head 4–2, defending last year's round of 64, but Shahar Peer had been the form player, winning 2 of their last 5 on hard. Shahar Peer narrowed the head-to-head to 4–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-05-27 | Roland Garros | R128 | clay | Agnieszka Radwanska | 6-1 6-1 |
| 2012-02-20 | Dubai | R16 | hard | Agnieszka Radwanska | 7-5 6-4 |
| 2010-08-02 | San Diego | QF | hard | Agnieszka Radwanska | 6-2 6-0 |
| 2010-04-26 | Stuttgart | R16 | clay | Shahar Peer | 6-3 6-7(4) 6-2 |
| 2007-10-15 | Zurich | R32 | hard | Agnieszka Radwanska | 6-4 6-3 |
| 2007-05-14 | Rome | R64 | clay | Shahar Peer | 6-0 2-0 RET |
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 (200 vs 198). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About