GLENVIEW, Ill. — Nobody's perfect.

Suburban Chicago teenager Alex Herrmann was 48-for-48 through the first two rounds of the NCAA men's basketball tournament, despite a string of upsets that wrecked millions of brackets.

Butler beat No. 1 seed Syracuse in the regional semifinals Thursday night, ending the 17-year-old Herrmann's run through the brackets. It was the first miss in his bracket.

Herrmann, who is autistic, entered CBSsports.com's Bracket Manager competition. The bracket can be changed after games are completed, and some skeptics on the Internet questioned Hermann's calls. Hermann's family told NBC-TV's Chicago affiliate the young man just picked the winners. The family and CBS officials did not return messages Friday.

The student at Glenbrook South High school chose Kansas State, Purdue, Kentucky and Tennessee to make the Final Four. His pick for a national champion? The Boilermakers.