For the second time in only a handful of hours, the 2026 NCAA Tournament had a game decided with a go-ahead bucket in the final five seconds.

And this time, it knocked out the reigning national champion and one of the four No. 1 seeds.

An Alvaro Folgueiras 3-pointer with 4.5 seconds remaining lifted No. 9 seed Iowa to a 73-72 upset victory over Florida on Sunday, March 22.

REQUIRED READING: Florida basketball stunned by Iowa in March Madness Round 2 upset

The win pushed the Hawkeyes into their first Sweet 16 since 1999, where first-year coach Ben McCollum's team will face Big Ten rival Nebraska in a matchup that, unlike the schools' football games, will feature no punting. It marked the ninth time since 1979 that a No. 9 seed has defeated a No. 1 seed.

The thrilling conclusion to the win and the ramifications of the upset unsurprisingly drew a spirited reaction among fans and media members.

Here’s a sampling of what was being said on social media after the game:

Looking at my bracket right now 😑 https://t.co/dpJAey2mhkpic.twitter.com/qcK0JDHDhe

— SportsCenter (@SportsCenter) March 23, 2026

This is the Sweet 16 matchup that the Midwest prayed for

Nebraska vs Iowa

Nationally, I don’t think people understand how great this is

This is war

— Will Compton (@_willcompton) March 23, 2026

This is March!

— Jon Rothstein (@JonRothstein) March 23, 2026

UPSET OF THE TOURNAMENT.

OH MY GOODNESS.

IOWA STUNS THE FLORIDA GATORS IN TAMPA.

THIS! IS! MARCH!

— Jake Marsh (@JakeMarsh18) March 23, 2026

Ben McCollum was coaching Northwest Missouri State two years ago in the D-2 tourney.

Last year he took Drake to the NCAA tourney.

This year he's taking Iowa to the Sweet 16.

— Jeff Goodman (@GoodmanHoops) March 23, 2026

Ben McCollum is a WIZARD. That Iowa roster has NO business beating that Florida team.

But it happened.

March happened. Again.

— Matt Norlander (@MattNorlander) March 23, 2026

pic.twitter.com/u6MFbkQ2ad

— No Context College Basketball (@ContextFreeCBB) March 23, 2026

This article originally appeared on USA TODAY: How social media reacted to Iowa upset of Florida in march Madness