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How many perfect brackets remain following the first round of the 2021 NCAA Tournament

Oral Roberts messed up a whole lot of brackets on Friday, and Ohio and Maryland finished the job on Saturday.

Oral Roberts Golden Eagles link arms and bow their heads following their win over Ohio State Buckeyes in overtime during the first round of the 2021 NCAA Tournament on Friday, March 19, 2021, at Mackey Arena in West Lafayette, Ind. IndyStar-USA TODAY Sports

Day 2 update: It was a mostly chalk second day, but things got going in the evening. No. 13 Ohio knocked off No. 4 Virginia and No. 10 Maryland beat No. 7 UConn. has been tracking perfect brackets across a variety of competitions, and there are none left. Cinderella is making some noise!

The first day of the 2021 NCAA Tournament saw March Madness on full display. We saw upsets from No. 15 Oral Roberts, No. 13 North Texas, No. 12 Oregon State, and No. 11 Syracuse. Oral Roberts was the most surprising, but even how easily Oregon State and Syracuse cruised to victory was unexpected. Add in the Mean Green taking down the only Indiana-based program in the tournament, and it was a wild day.

Brackets regularly get busted up on the first day, but Friday left few perfect brackets in the many contests around the Internet. The NCAA tracks brackets at their game and a host of others, and the organization said only 121 perfect brackets remained across games ranging from their own to ESPN, Yahoo!, CBS, and Sports Illustrated. Considering the millions of people who participate, that’s certainly something.

DraftKings Sportsbook is offering a $2 million bracket pool, and Sunday’s most significant loss — Ohio State to Oral Roberts — knocked out the champ in 2.04 percent of all pools. The Buckeyes were the eighth most picked team to win the national championship. Gonzaga is the overwhelming favorite to win it all, with 42.5 percent of brackets ending with the Zags cutting down the nets. The next closest is Illinois with 19.92 percent of brackets picking the Illini to win it all.

We’ll keep track of the numbers throughout the rest of the weekend and into the deeper rounds. Saturday could shake things up even further with half the bracket left to play in the first round.