Sean Singletary tied the game with a jumper late in regulation, then hit a falling, one-handed floater with a second left in overtime Thursday night, lifting Virginia past No. 8 Duke 68-66.
The Cavaliers (14-6, 6-2 Atlantic Coast Conference), who trailed 59-51 with 3:42 left in regulation, pulled even on Singletary's 15-footer with 24.8 seconds left, his first basket in nearly 16 minutes. Duke's Josh McRoberts missed a driving attempt in the final seconds of regulation, and Singletary and the Cavaliers never trailed in the extra period.
It was Virginia's fifth victory in a row, and second straight that required a dramatic comeback. They erased a 16-point deficit in the last nine minutes at Clemson on Saturday, winning on a tip-in by Jason Cain with 15.5 seconds to play.
No. 18 WASHINGTON STATE 72, No. 20 ARIZONA 66: At Tucson, Ariz., Ivory Clark scored 18 points and Washington State swept the season series from Arizona for the first time since 1983.
Washington State (18-4, 7-3 Pac-10) won for only the fourth time in 48 games against Arizona coach Lute Olson.
Arizona drew within 66-64 when the Cougars' Daven Harmeling hit a 3-pointer with 19 seconds remaining.
After the Wildcats' Marcus Williams made a pair of free throws, Harmeling scored on a breakaway layup and drew a foul with 7 seconds left. Harmeling finished with 12 points.
Chase Budinger scored 19 points and Mustafa Shakur added 13 for Arizona (14-7, 5-5), which lost for the sixth time in eight games.
No. 5 UCLA 69, No. 9 OREGON 57: At Los Angeles, Arron Afflalo scored 17 points and No. 5 UCLA shot 57 percent in beating ninth-ranked Oregon to gain sole possession of first place in the Pac-10.
The Bruins (19-2, 8-2) have won 16 consecutive games at Pauley Pavilion. UCLA and the Ducks (19-3, 7-3) came in tied atop the conference standings.
The victory avenged UCLA's 68-66 loss at Oregon — its first of the season — on Jan. 6 that knocked the Bruins out of the nation's No. 1 ranking. Aaron Brooks hit the game-winning jumper with 13 seconds left.
Bryce Taylor scored 17 points to lead Oregon, off to its best record in 80 years. The Ducks' five starters came in averaging double figures, but Brooks was the only other player to do so with 14.