The Brief

The NCAA will reveal its 68-team men’s tournament bracket at 6 p.m. ET on CBS tonight, followed by the women’s bracket at 8 p.m. on ESPN. Duke, Michigan, Arizona, and Florida are projected as the four No. 1 seeds on the men’s side, with First Four play-in games beginning Tuesday in Dayton, Ohio, and the Final Four set for April 4 at Lucas Oil Stadium in Indianapolis.

The Report

Selection Sunday arrives tonight with the NCAA set to unveil both the men’s and women’s March Madness brackets in back-to-back nationally televised events. The men’s one-hour selection show begins at 6 p.m. ET on CBS, with the women’s bracket following at 8 p.m. on ESPN.

Duke enters as the projected No. 1 overall seed after edging Virginia 74–70 in Saturday’s ACC Tournament final. Michigan, Arizona — which claimed the Big 12 title with a 79–74 win over Houston — and Florida round out the expected top line. The No. 2 seed debate drew more attention from analysts in the final days, with Houston, UConn, Purdue, and Iowa State competing for positioning after both Houston and UConn fell in their respective conference championship games. St. John’s dismantled UConn 72–52 in the Big East final under Rick Pitino, claiming back-to-back conference titles.

The bubble produced several historically unusual cases. Miami of Ohio carries a 31–1 record into Sunday but sits outside the top 90 in predictive ratings — no one-loss eligible team has ever been excluded from the tournament, though no team with metrics this low has presented the case either. Auburn enters with 16 losses but four Quad 1 wins, testing the upper boundary of what the committee has historically tolerated. CBS Sports analyst David Cobb noted that the Atlantic 10’s championship game between Dayton and VCU could create a “nightmare scenario” for other bubble teams, potentially sending three teams from the conference to the tournament for the first time since 2018.

On the women’s side, UConn’s perfect 34–0 record and reigning championship make the Huskies the likely No. 1 overall seed, though UCLA’s 18 Quad 1 victories and the nation’s strongest schedule — punctuated by a 51-point demolition of Iowa in the Big Ten tournament final — give the committee a genuine decision to make. Texas and South Carolina complete the projected women’s top seeds.

First Four games begin Tuesday at UD Arena in Dayton, with first-round action spanning eight venues from Buffalo to San Diego starting March 19. All 67 men’s tournament games will air across TBS, CBS, TNT, and truTV, with TBS carrying the Final Four semifinals on April 4 and the national championship on April 6. The tournament arrives on the back of record regular-season viewership — Fox logged its most-watched men’s basketball season ever, CBS its best in seven years — and the 2025 tournament’s first two rounds drew an average audience of 9.4 million, the highest mark since 1993.

Five conference tournament finals remain undecided Sunday, with automatic bids still to be claimed in the Big Ten, SEC, Atlantic 10, American, and Ivy League before tonight’s reveal.

The Angle

Sixty-eight teams, 67 games, four networks, eight first-round venues across the country, streaming packages starting at six dollars a day — the infrastructure required to deliver three weeks of single-elimination basketball now rivals a medium-sized logistics operation. What Selection Sunday actually selects is not just the teams. It is the annual activation of the largest shared attention event American sports still produces, in a media landscape that has otherwise fragmented past the point of reassembly. The tournament’s viewership keeps climbing precisely because almost nothing else can command a national audience that hasn’t pre-sorted itself by algorithm. March Madness doesn’t compete with fragmentation. It is the last product that reverses it — for three weeks, once a year, on somebody else’s schedule.