March Madness 2025 Calendar Release Date. The 2025 competition will be the 86th annual edition of the tournament will begin on 18 march with the preliminary rounds. The 2025 men's ncaa march madness tournament bracket matchups will be announced on sunday, march 16th between 6:00 p.m.

The 2025 competition will be the 86th annual edition of the tournament will begin on 18 march with the preliminary rounds. When does the march madness tournament start?