The NCAA Tournament averaged 9.8 million viewers through its first three days, the best start since CBS and TNT began showing all of the games together in 2011, according to Nielsen data released Monday. The primetime Thursday window hit 12.5 million, which is the most-watched first-round window in tournament history. College basketball’s showcase event is not just trending up, it is peaking at the right time.
The Sweet 16 field tells you why.
6 Big Ten Teams, a 9-Seed Upset and Iowa State’s Vengeance
The Big Ten put six teams in the Sweet 16, more than any other conference: No. 1 Michigan in the Midwest, No. 2 Purdue in the West, No. 3 Michigan State in the East and No. 3 Illinois, No. 4 Nebraska and No. 9 Iowa in the South. The Big Ten went 6-1 in the second round, with its only loss coming in UCLA’s 73-57 defeat to Connecticut. No major conference has dominated the early rounds of a March Madness field like this in years.
Iowa’s run has the most electricity. The Hawkeyes were down 12 to defending champion Florida in the second half before storming back to trail 71-70 with seconds left. Florida guard Isaiah Brown went to the free-throw line with 8 seconds remaining. He missed the first and made the second.
MARCH MADNESS: Fill In Your Bracket Now!
Iowa’s Bennett Stirtz grabbed it, sprinted downcourt, and found Alvaro Folgueiras in the corner with 4.5 seconds on the clock. Folgueiras buried it. The upset was complete: No. 9 Iowa 73-72 over No. 1 Florida. It is Iowa’s first Sweet 16 appearance since 1999.
Iowa State handled the other half of the bracket’s drama with authority. The Cyclones dismantled Kentucky 82-63, ending the Wildcats’ season on a 19-point loss. Tamin Lipsey posted 26 points, 10 assists, and 5 steals in that win, becoming the third player to hit those numbers in March Madness history, per The Field of 68.
Iowa State alum Tyrese Haliburton posted on X after the Cyclones finished off Kentucky: “Went to text the guys who played at Kentucky about this game and forgot they think they Arkansas alum now.” The joke landed because it was pointed. Former Kentucky coach John Calipari left for Arkansas in April 2024, and several of his former players in the NBA have maintained loyalty to Calipari over the program. Haliburton turned a tournament blowout into a whole conversation about college basketball’s transfer-portal, coach-loyalty era.
The tournament also featured some historic wins. Nebraska not only won its first NCAA Tournament game in program history, but it also advanced to the Sweet 16 on a buzzer-beater layup by Lincoln native Braden Frager. No. 11 Texas knocked out No. 3 Gonzaga.
Iowa and Iowa State are both alive in the Sweet 16 simultaneously for the first time ever. The big-brand programs that survived, such as No. 1 Duke, No. 1 Arizona, No. 2 Connecticut, and No. 2 Houston are legitimate title threats.
This is the bracket the tournament needed. Cinderella stories, conference dominance that demands attention, a buzzer-beater that ended a dynasty’s repeat bid, and an NBA star posting about it in real time. The Sweet 16 tips on Thursday. The country will be watching.
