While Thursday's NCAA tournament action provided just two upsets it was enough to officially bust most peoples' brackets.

Out of the 17.3 million brackets filled out in ESPN's Tournament challenge, only 6,306 perfect brackets remained after the first 16 games.

That's just 0.04 percent.

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It's a huge drop from 2017, where there were still 154,000 perfect brackets at the end of day 1, according to ESPN Fantasy Sports.

Perhaps even more mind-boggling is that a handful of people somehow managed to get every single pick wrong on Thursday in ESPN's bracket challenge.

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Meanwhile nearly 5 percent of the ESPN brackets picked Arizona to win it all. Yikes.

Here's to more bracket busting fun for Friday!

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