The madness is here! It's officially just one day into the NCAA Tournament and we've already seen our first upset when No. 9 TCU took down No. 8 Ohio State in the last seconds.

Whether you're filling out a bracket for fun, watching every game religiously, or even attending a game in person, here is everything you need to know about the March Madness tournament:

The 2026 March Madness tournament will kick off after the 68-team bracket was revealed on Selection Sunday, which landed on Sunday, March 15 this year. The tournament will continue through March, ending with the Final Four on Saturday, April 4 and the National Championship game on Monday, April 6.

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Depending on the round, the 2026 March Madness has different host sites. However, Indianapolis is the main host for the men's tournament, hosting the Final Four and the National Championship. Here's a look at the men's tournament locations: