at the 2015 us open, liu was granted a wild card into the qualifying tournament. she beat verónica cepede royg and ninth seed jana čepelová in her first two matches before losing to the 26th seed, alexandra panova, in the final round. liu, alongside taylor fritz, was also given a wild card for the mixed doubles event; they were defeated in the first round by the fourth seeds and eventual champions, martina hingis and leander paes.