Shuai Peng defeated Agnieszka Radwanska 6-3 6-4 in the US Open round of 64 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 16. Shuai Peng narrowed the head-to-head to 4–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-08-21 | New Haven | QF | hard | Agnieszka Radwanska | 7-5 6-3 |
| 2017-03-06 | Indian Wells | R32 | hard | Shuai Peng | 6-4 6-4 |
| 2011-01-17 | Australian Open | R16 | hard | Agnieszka Radwanska | 7-5 3-6 7-5 |
| 2010-08-30 | US Open | R64 | hard | Shuai Peng | 2-6 6-1 6-4 |
| 2009-06-22 | Wimbledon | R64 | grass | Agnieszka Radwanska | 6-2 6-7(6) 9-7 |
| 2008-03-10 | Indian Wells | R32 | hard | Agnieszka Radwanska | 6-3 3-6 6-3 |
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 (193 vs 198). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About