Sanchez. The Vancouver singles victory moved Konta back into the world top-100 players ahead of the US Open, which she entered at the qualifying stage as the third seed. She progressed to the main draw with wins against Réka Luca Jani, Naomi Osaka and Tamira Paszek. Prior to this, Konta had won just one Grand Slam main draw match in her career, but now added victories over Louisa Chirico, ninth seed Muguruza, and 18th seed Andrea Petkovic, extending her winning streak to 16 matches and setting up a last-16 meeting with two-time Wimbledon champion Petra Kvitová. The match against Muguruza lasted 3 hours and 23 minutes, the longest women's match at the US Open since the tie-break was introduced in 1970. It was also Konta's second top-ten win, and increased her head-to-head record against the Spaniard to 2–0. Czech fifth seed Kvitová ended Konta's run, winning in two tight sets. The points accrued during the North American swing lifted Konta to a new career-high singles ranking of world No. 58. Konta's first event after the US Open was the Wuhan Open, a Premier-5 event, the second highest level on the WTA Tour. Having won through qualifying, Konta was drawn against Andrea Petkovic in the opening round, a rematch of their New York meeting. She won once again to advance to a second-round encounter with Grand Slam champion and former world No. 1, Victoria Azarenka, who retired after losing the first set. In the third round, Konta faced top seed and world No. 2, Simona Halep, who came into the match leading the WTA in hardcourt victories. Halep established a 5–1 lead in the deciding set, only for Konta to take six consecutive games as she came back to win. She exited in the quarterfinals after a three-set battle with Venus Williams, who would go on to win the tournament. Konta's run in Wuhan saw her break into the top 50 for the first time, as her ranking reached another new career high at world No. 49. She also took over from Heather Watson as the British number one. Konta's final event of the season was the Linz Open. She entered in qualifying, where she was the top seed, but lost to Klára Koukalová in the final round, her first defeat against a lower-ranked player since May. However, Konta received an entry to the main draw despite the loss, as she