[7] In November 2016, Stith moved to Ireland to play for Belfast Star in the Super League.
[14] In October 2017, Stith joined Melbourne United of the National Basketball League (NBL) for their trip to the United States to play an NBA preseason exhibition game against the Oklahoma City Thunder.
[7] In 2019, Stith led the Cougars to the Big V grand final series, where they defeated the Hume City Broncos 2–0 to win the championship.
[7] He averaged 26.5 points and 11.2 rebounds for the season[7] while earning league MVP honors and All-Star Five.
[19] On October 2, 2019, Stith joined the roster of Melbourne United as an injury replacement for Casey Prather.
[20][21] He made his NBL debut the following day against the South East Melbourne Phoenix.
[22] He travelled to the United States with Melbourne later that month to play two NBA preseason games.
[23] As a result of an injury setback to Prather in both November and December, Stith remained in the line-up.
[35] For the 2023–24 season, Stith joined BBC Arantia Larochette of the Luxembourg Basketball League.