OMAHA, Neb. — It didn't take Oregon State coach Pat Casey long to figure out when the Beavers dominant run to a second-straight College World Series title began.

Casey believed it was in the final two innings of a regional game victory when Oregon State rallied over Virginia that propelled the Beavers to their 5-0 mark in the CWS that concluded with a sweep of North Carolina in the best-of-three finals Sunday night.

With the 9-3 victory, Oregon State capped a dominant run that saw the Beavers only trail for one of the 45 innings in Omaha. The run started when the Beavers (49-18) scored four runs in the final two innings to rally against Virginia in a regional game.

"I'm not sure why or how but we got pretty energized or inspired and from that time on, there was never a time that I didn't think we weren't going to be very tough to handle," Casey said. "And I don't know why, I've always been confident. This was different: This was magic."

North Carolina (57-16) was runner-up for the second straight year after leaving 18 runners stranded in two games against Oregon State.

OSU became the first back-to-back champion since LSU in 1996-97 and the fifth overall.

"It was something strange that happened and our club felt it," Casey said. "It was some type of energy and it never went away. It followed us on the plane, it followed us to the hotel, it followed us on the yard."

Darwin Barney's two-run homer gave Oregon State the lead in the second inning on Sunday night. Jordan Lennerton hit his second home run in as many nights in the eighth.

North Carolina couldn't get anything going against Oregon State's pitchers, who retired the last seven Tar Heels in order after getting an out at the plate to squash Carolina's last chance for a big inning.

"We couldn't just get that big hit," said North Carolina coach Mike Fox, whose team left runners on base in six innings.