Bobby Cremins isn't even sure how his College of Charleston team managed this upset.

"Going on a 12-1 run with four minutes to go against North Carolina, usually that's lights out," Cremins said. "So I've got to watch the tape tonight to figure out what happened."

North Carolina won't want to be reminded.

The ninth-ranked Tar Heels (11-4) squandered an 11-point lead down the stretch and lost 82-79 in overtime to the Cougars on Monday night in Charleston, S.C.

Charleston's Andrew Goudelock scored the last eight points in regulation, including the tying 3-pointer from about 28 feet over 6-foot-10 Ed Davis with two seconds left.

Donavan Monroe opened overtime with a 3-pointer to put the Cougars ahead for good as they defeated a Top 25 team for the first time since beating the then-No. 3 Tar Heels 66-64 on Dec. 5, 1998.

North Carolina coach Roy Williams said the team was as low as it could be with the loss.

"It hurts," said Davis, who led North Carolina with 19 points and 16 rebounds.

Along with his go-ahead 3-pointer, Monroe hit two free throws for the final margin.

Goudelock scored 24 points, none bigger than his fadeaway jumper that forced overtime.

"He was so far back, and it was contested," Monroe marveled. "It was just the slowest shot ever."

And it pretty much took the life out of North Carolina.

• Kansas, Texas, Kentucky and Purdue held the top four spots in the Associated Press college basketball poll for the fourth straight week.

AP