Charlotte Hornets (2020–2021) On November 18, 2020, Riller was drafted in the second round, 56th overall, in the
2020 NBA draft by the
Charlotte Hornets. On November 30, 2020, he was signed to a
two-way contract by the team. Under the terms of the deal, he split time between the Hornets and their
NBA G League affiliate, the
Greensboro Swarm. He played in 11 G League games, averaging 13.1 points and 3.1 assists per game, and appeared in seven
NBA games, averaging 2.6 points and 0.4 assists per game.
Delaware Blue Coats (2021) On August 30, 2021, Riller signed a two-way contract with the
Philadelphia 76ers. However, he was waived on December 19 after making four appearances for the
Delaware Blue Coats, Philadelphia's affiliate.
Texas Legends (2022–2023) On November 3, 2022, Riller was named to the opening night roster of the
Texas Legends. Across 26 games he averaged 21.3 points, 3.8 assists, and 2.8 rebounds per game.
Beijing Royal Fighters (2023–present) In August of 2023, Riller signed to play for the
Beijing Royal Fighters of the
Chinese Basketball Association. In his first season with the team, Riller averaged 15.6 points, 3.2 rebounds, and 2.6 assists per game in 44 appearances. He improved in his second season, averaging 20.3 points, 4.2 assists, and 3.6 rebounds per game in 43 appearances. ==Career statistics==