saville was given a wild card into the 2015 australian open, where he lost in round 1 to tim smyczek in straight sets. in february, saville reached the quarter final of the 2015 delhi open. in may, saville made the second round of french open qualifying. in june, saville made his first final on the atp challenger tour, losing to compatriot sam groth in the manchester challenger. in june, saville qualified for wimbledon for the second year in a row, saving a match point and fighting back from two sets down to defeat higher-ranked italian luca vanni in the final round of qualifying. saville lost in round 1 to number 21 seed richard gasquet in straight sets. in august, saville won the usa f24 title against kevin king, but lost in round 1 of qualifying for the us open to karen khachanov.