A 12-year-old kid had the best NCAA tournament bracket on ESPN

A 12-year-old kid walked away with the best bracket in ESPN's Tournament Challenge.

If you thought Mitt Romney's March Madness bracket was impressive, check out the one of 12-year-old Sam Holtz of Lake Zurich, Ill.

Holtz tied with one other person for the best bracket in ESPN's Tournament Challenge, out of 11.57 million entries. You might think that such a feat required extensive analysis or some lengthy decisions while filling it out, but Holtz told ABC7 in Chicago that he had the whole thing done in just five minutes.  

"I just rushed right through it," he said. "I think it was kind of all skill. Some people say it's luck, but I think I studied enough."

• Take a look at Duke's 2015 national championship rings

You can view Holtz's bracket here. He had 14 of the Sweet 16 teams correct and was accurate with the entire Elite Eight, Final Four and national championship game, as well as picking Duke as the winner.

Holtz said he made 10 brackets overall, which he does "for fun." He entered with his dad's consent and email, since you have to be 18 or older to participate in the contest. 

He's now entered with the other top 1% of brackets for a chance to win a $20,000 Best Buy gift certificate and a trip to the 2015 Maui Invitational, which his dad would have to collect for him should he win.

- Molly Geary