Agnieszka Radwańska began 2015 by competing at the Hopman Cup, where she claimed the title for Poland with Jerzy Janowicz defeating Americans Serena Williams and John Isner. However, she was unable to carry the momentum from this victory, winning back-to-back matches only three times between Sydney and the French Open. She rebounded at Nottingham, reaching the semifinals, before reaching the final at Eastbourne where she lost to Belinda Bencic. She followed it up with a semifinal appearance at Wimbledon falling to Spain's Garbiñe Muguruza in three sets. Radwańska continued her better form with consistent results during the US Open series, reaching three quarterfinals out of four tournaments played. However, she lost in the third round of the US Open to Madison Keys. At the Pan Pacific Open, Radwańska claimed her first title in over a year against Bencic in straight sets. She then reached the semifinal of the China Open, once again losing to Muguruza. She claimed her second title of the year at the Tianjin Open defeating first time finalist Danka Kovinić. This is the fifth straight year Radwańska has qualified for the championships.