Automatics (32)
Ohio Valley: Eastern Kentucky
Atlantic Sun: Mercer
Big South: Coastal Carolina
Missouri Valley: Wichita State
Colonial Athletic: Delaware
Metro Atlantic: Manhattan
Southern: Wofford
West Coast: Gonzaga
Horizon: Wisconsin-Milwaukee
Northeast: Mount St. Mary's
Summit: North Dakota State
Patriot: American
America East: Albany
Conference USA: Tulsa
Big 12: Iowa State
American Athletic: Louisville
Big East: Providence
Big Sky: Weber State
Big West: Cal Poly
Mid-American: Western Michigan
MEAC: North Carolina Central
Mountain West: New Mexico
Pac-12: UCLA
SWAC: Texas Southern
WAC: New Mexico State
Southland: Stephen F. Austin
Sun Belt: Ga. State or La. Lafayette
Atlantic 10: VCU or St. Joseph's
Atlantic Coast: Virginia or Duke
Big Ten: Michigan or MSU
Southeastern: Florida or Kentucky
At-large (36)
Big 12 (6): Baylor, Kansas, Oklahoma, Texas, Kansas State, Oklahoma State
Big Ten (5): Michigan or Michigan State, Wisconsin, Iowa, Ohio State, Nebraska
Pac-12 (5): Arizona, Oregon, Colorado, Arizona State, Stanford
Atlantic 10 (5): VCU or St. Joseph's, St. Louis, George Washinton, Massachusetts, Dayton
ACC (4): Virginia or Duke, Pittsburgh, North Carolina, Syracuse
American (4): Cincinnati, Connecticut, Memphis, Southern Methodist
Big East (3): Creighton, Villanova, Xavier
SEC (2): Florida or Kentucky, Tennessee
Mountain West (1): San Diego State
West Coast (1): BYU
The no. 1 seeds
Florida
After a couple of early slip-ups, the Gators have been one of the most consistent teams in the nation. Florida heads into Sunday on a 25-game winning streak.
Wichita State
Some will argue the Shockers don't deserve it because of their decidedly weak schedule, but their incredible achievement of going undefeated will earn them what they're due.
Arizona
Armed with the nation's No. 1 defense, the Wildcats lasted 21 games before they even took their first loss. Now, they seemed primed to compete for a national championship.
Michigan
The fourth No. 1 seed is up for some debate, but Michigan may have played itself there with a tight victory over Ohio State in the Big Ten semifinals. Other potential No. 1 seeds, Wisconsin and Villanova, were eliminated from their conference tournaments.
Tournament dates
Tuesday, Wednesday: Two first-round games in Dayton, Ohio
Thursday-Sunday: Second- and third-round games
March 27-30: Regional semifinals and finals in Memphis; Anaheim, Calif.; New York; Indianapolis
April 5, 7: Final Four in Arlington, Texas