The 2021 Colonial Athletic Association men's basketball tournament was the postseason men's basketball tournament for the Colonial Athletic Association for the 2020–21 NCAA Division I men's basketball season. The tournament was held March 6–9, 2021 at the Atlantic Union Bank Center in Harrisonburg, Virginia. The tournament was originally scheduled to be played at the Entertainment and Sports Arena in Washington, D.C., however it was relocated due to the COVID-19 pandemic. This was the first time since 1986 that the CAA has crowned its men's basketball champion at an on-campus facility.

Seeds All 10 CAA teams participated in the tournament. SeedSchoolConf.Tiebreaker1 James Madison8–22–0 vs. Towson 2 Northeastern8–21–1 vs. Towson3Charleston6–4 4Hofstra8–6 5Delaware5–4 6Drexel4–5 7William & Mary4–6 8Elon4–7 9Towson3–9 10UNC Wilmington1–6

Schedule SessionGameTime*MatchupScoreTelevision First round – Saturday, March 6113:00 pmNo. 8 Elon vs. No. 9 Towson69–48FloHoops26:30 pmNo. 7 William & Mary vs. No. 10 UNC Wilmington73–60 Quarterfinals – Sunday, March 72311:00 amNo. 4 Hofstra vs. No. 5 Delaware83–75FloHoops42:30 pmNo. 1 James Madison vs. No. 8 Elon71–72356:00 pmNo. 2 Northeastern vs. No. 7 William & Mary63–4769:30 pmNo. 3 Charleston vs. No. 6 Drexel75–80 Semifinals – Monday, March 8476:00 pmNo. 4 Hofstra vs. No. 8 Elon58–76CBSSN89:30 pmNo. 2 Northeastern vs. No. 6 Drexel67–74 Championship – Tuesday, March 9597:00 pmNo. 8 Elon vs. No. 6 Drexel56–63CBSSN *Game times in ET. Rankings denote tournament seed

Bracket

* denotes overtime game

See also 2021 CAA women's basketball tournament

References