In one of those stories which sounds just crazy enough to be true, a Chicago teen has picked every game of March Madness correctly so far. How unusual is that? With many upsets this year no one else has. Via NBC Chicago.

An autistic teenager from the Chicago area has done something almost impossible.

Nearly 48 games into an upset-filled NCAA tournament, 17-year-old Alex Hermann is perfect.

"It's amazing," he says. Truly.

The teenager predicted that Northern Iowa would beat the Kansas Jayhawks. He picked Ohio to knock off Georgetown. And Cornell to knock off Wisconsin.

In fact, he picked every game through the first two rounds correctly. The odds of anybody doing that? One in 13,460,000, according to BookofOdds.com. It's easier to win the lottery. Twice.

"I'm good at math," Alex, a Glenbrook South High School student, said. "I'm kind of good at math and at stats I see on TV during the game."

Alex entered the bracket on CBSsports.com's bracket challenge. His 24-year-old brother Andrew, who helped him enter his picks into CBS' bracket manager, also entered the contest -- and ranks behind 500,000 other people.

“My bracket is totally shot,” hist 24-year-old brother Andrew said. “So is everyone else I know.”

ESPN estimates around 4.78 million played in their bracket challenge, but no one picked all the games correctly. The leader at ESPN’s bracket has already missed four games.