Last year, Stefanos Tsitsipas earned the US Open Series Breakout Performer award with his rocket-ride to the Rogers Cup final in Toronto, where he took out Dominic Thiem, Novak Djokovic, Alexander Zverev and Kevin Anderson.
Arnya Sabalenka was awarded Breakout Performer after her sizzling summer where she reached the semifinals of Cincinnati by defeating three Top-15 players: Caroline Garcia, Karolina Pliskova, and Madison Keys. The very next week she captured her first WTA Premier title in New Haven.