Buffalo, N.Y. ? Pete Campbell was out of his zone. He found it in the nick of time.

After missing all three of his shots in the first half Thursday, Campbell found his range midway through the second, hitting three three-pointers to spark a 17-0 run and help Butler beat Old Dominion, 57-46, in a first-round NCAA matchup between mid-majors.

The three baskets were the only ones of the game for Campbell, but the first came with the score tied at 32, and the next two followed in a span of just 54 seconds.

“It’s huge whenever he goes off for us,” said Brandon Crone, who finished with 12 points. “It definitely gives you a lift, but he’s done that all year, coming in and hitting big shot after big shot. You definitely feed off of that. Once he gets going, they start focusing on him, and it opens up a lot. It’s huge whenever he goes off for us.”

Brandon Johnson led Old Dominion with 11 points, and freshman Gerald Lee had 10 points and 11 rebounds, his first career double-double.

“Whenever we play for championships, we want to be successful,” Butler coach Todd Lickliter said. “This team has competed. I know they had a lot of doubters.”

Maryland 82, Davidson 70

Butler's A.J. Graves, left, reaches for the ball against Old Dominion's Brandon Johnson. Butler held off ODU, 57-46, Thursday in Buffalo, N.Y.

Buffalo, N.Y. – Mike Jones scored 17, D.J. Strawberry added 12 points, and Maryland overcame Stephen Curry’s 30 points for Davidson.

Reserve forward Bambale Osby added 11 points and played a key role in sparking an 11-4 run that put the Terps ahead 69-63 with 7:27 remaining.

Maryland (25-8) overcame an eight-point second-half deficit.

The Terrapins will face No. 5 seed Butler on Saturday, with the winner advancing to St. Louis.