The Mavericks clinched the Southwest division for the first time since the 2009-10 season following a 110–90 victory over the Cleveland Cavaliers on May 7, 2021.
[1] However, the Mavericks lost in the first round to the Los Angeles Clippers for the second consecutive season in seven games.
[2] Following the season on June 17, 2021, long time head coach Rick Carlisle resigned from his position as head coach after 13 seasons and leading the team to a championship in 2011.
[3][4] 1 The Mavericks acquired the second-round pick from the Golden State Warriors.
Notes The preseason schedule was announced on November 27, 2020.