[1] Mack averaged 5.1 points and 2.0 rebounds per game as a freshman at Texas, helping the team reach the NCAA Tournament.

As a sophomore, he averaged 14.8 points and 4.8 rebounds per game before being suspended indefinitely for violating team rules in January 2017.

On October 3, 2024, Mack was announced to have signed with Libyan champions Al Ahli Tripoli, ahead of their participation in the Road to BAL.

[7] On December 12, 2024, Mack signed with the New Taipei CTBC DEA of the Taiwan Professional Basketball League (TPBL).

[9] Mack was a part of the Clemson team chosen to represent the United States in the 2019 Summer Universiade in Italy.