The Basketball Tournament 2021 was the eighth edition of The Basketball Tournament (TBT), a 5-on-5, single elimination basketball tournament. The tournament, involving 64 teams, began on July 16 and concluded on August 3 with the championship game in Dayton, Ohio. The format of the tournament returned to that of the 2019 edition—64 teams, each playing in one of four regionals, with the top two teams from each regional progressing to the championship weekend. The tournament was won by Boeheim's Army, who captured the winner-take-all $1 million prize.