May the best 1 win. Here’s the bracket for the men’s NCAA Tournament:

There are no real edges for any of these teams as the matchups fit their playing styles. Duke and Houston have the two best defenses in the country and play slower, so fitting they meet, while Auburn and Florida both play at quicker tempos and rank as the second and third-best offenses behind Duke.

It's a parade of No. 1 seeds along the Riverwalk in San Antonio as the men's NCAA Tournament is down to its Final Four. See the matchups, schedule.

Oddly enough, the Alamodome was also the venue the only other time all four No. 1 seeds made the Final Four. In 2008, Kansas toppled Memphis in overtime to win Bill Self’s first national title, tying the game in the final seconds of regulation with a Mario Chalmers 3-pointer after Derrick Rose missed a potential clinching free throw.

In a college basketball era where faster, higher-scoring games seem to be all the rage, this Final Four seems to be all about the defense.

Madness continues Sunday with four more Elite Eight games in the men’s and women’s NCAA tournaments. The women started things off, with defending champion South Carolina outlasting Duke to return to the Final Four,

Fletcher Loyer scored eight of Purdue's first 10 points and goes into halftime with 12 points after hitting 2 of 3 3s. Milos Uzan leads Houston with 12 points and was the only Cougars starter to score a field goal through the game's first 15 minutes. He already has a season-high in made 3-pointers on a 4-of-6 first-half effort.

The Blue Devils, Cougars, Gators, and Tigers had held the top four spots in daily rankings from KenPom since the first half of February, and their net efficiency ranks among the best ever charted by the analytics site going back more than a quarter-century.