Hampton played in the Pan Pacific Open. After advancing to the third round with wins over Caroline Garcia and Kaia Kanepi, she fell short to Agnieszka Radwańska. Her last tournament of the year was the Osaka Open in Japan. She defeated Ayumi Morita and Tamarine Tanasugarn to get to the quarterfinals where she lost to top seed Samantha Stosur. With her best year on tour to date, Hampton ended the year ranked 71 in singles. 2013 Hampton started off 2013 by playing in Auckland. In the first round, she defeated defending champion and fourth seed, Zheng Jie. In the next round, Hampton beat Marina Erakovic to get a place in the quarterfinals. She defeated Kiki Bertens in the quarterfinals. Hampton lost a tight two-set semifinal with two tiebreaks to the 2012 Wimbledon runner-up and world No. 4, Agnieszka Radwańska. Her next tournament was the Australian Open. In the first round, she upset 31st seed Urszula Radwańska. Hampton then crushed qualifier Luksika Kumkhum, 6–2, 6–1. In the third round, she faced defending champion Victoria Azarenka. The match lasted over two hours before Azarenka prevailed in three sets. Hampton suffered a lower-back injury late in the second set. At the Brussels Open, Hampton defeated Roberta Vinci to reach the semifinals, but lost in straight sets to Kaia Kanepi. At the French Open, Hampton defeated 25th seed Lucie Šafářová in the first round in a tough three-set match and flew by Anna Karolína Schmiedlová in the second round. She defeated seventh seed Petra Kvitová in the third in straight sets before she lost to Jelena Janković in the fourth round. After qualifying for the Eastbourne International, Hampton upset top seed and world No. 4, Agnieszka Radwańska, in straight sets in the first round, and then went on to beat Caroline Wozniacki in the semifinals to reach her first WTA tournament final. She lost in the final to Elena Vesnina in straight sets. In JUne, she lost to Sloane Stephens in the first round of Wimbledon. Hampton reached the semifinals of the Stanford Classic in California, where she was seeded fourth. With this result, she reached a career-high ranking of No. 24. At the US Open, where Hampton was seeded at a Major for the first time, she reached the third round, but was again defeated by Sloane Stephens. 2014 Hampton had a strong start to her 2014 season, advancing to the semifinals in