Mooney was undrafted out of Texas Tech University. In 2019, he joined the Atlanta Hawks Summer League roster. He then joined the Memphis Hustle, the G-League affiliate of the Memphis Grizzlies. On January 15, 2020, the Cavaliers signed Mooney to a Two-Way contact, where he will split time between the Cavs and the Canton Charge, Cleveland's G-League affiliate.
Mooney earned Final Four All-Tournament Team honors to complete a senior season where he averaged 11.3 points, 3.3 assists and 1.8 steals per game for the Red Raiders… He was named to the Big 12 Conference Second Team along with receiving conference Newcomer and Defensive Team honors… Mooney matched a season-high with 22 points after hitting four 3-pointers going 8-for-16 from the field in the Final Four win over Michigan State in Minneapolis
Mooney started all 68 games during the 2016-17 and 2017-18 seasons at South Dakota. He picked up two All-Summit League First-Team selections. USD won 48 games, the 2016-17 Summit League regular season championship and made a pair of postseason appearances during Mooney’s two seasons. Played his freshmen season at Air Force in 2014-15 where he averaged 6.9 points and 1.8 assists per game.
Parents are Michael and Angela Mooney. He was born on February 7, 1997. Graduated with his undergraduate degree in innovation and entrepreneurship in May 2018 from South Dakota.