PULLMAN, Wash. (AP) -Daven Harmeling scored a career high 28 points to help Washington State beat No. 7 Arizona 77-73 in overtime Saturday night.
Arizona (12-2, 3-1 Pac-10) tied the score at 67 to force overtime, but was outscored 10-6 in the extra period to see its 12-game winning streak snapped.
Washington State (14-2, 3-1) had not beaten such a highly ranked opponent at home since topping No. 6 UCLA in 1983. The Cougars have now topped 13 wins for the first time since 1995-96.
Harmeling sank 9-of-15 shots, including 7-of-11 3-pointers. Kyle Weaver added 15 and Robbie Cowgill 13 for the Cougars.
Chris Matthews' 3-pointer and Harmeling's basket gave Washington State a 36-33 lead early in the second, erasing a halftime deficit.
The teams exchanged eight leads over the next 8 minutes, until consecutive 3-pointers by Harmeling gave WSU a 51-46 lead.
Baskets by Weaver and Cowgill lifted the Cougars to a 61-54 lead with 2:47 left. But Shakur hit a 3 and Williams followed with a long jumper as Arizona pulled to 61-59.
Harmeling replied with his seventh 3, and Weaver added a pair of free throws for a 66-59 lead.
Chase Budinger's 3 brought Arizona to 66-62 with 36 seconds left. After Cowgill's free throw, Williams' basket cut Washington State's lead to 67-64 with 25 seconds left.
Weaver missed a pair of free throws and Ivan Radenovic hit a 3-pointer from the top of the key to tie the score at 67 with 11 seconds left. Washington State's Derrick Low turned the ball over and Shakur's long jumper missed at the buzzer.
Cowgill and Ivory Clark scored inside for Washington State and Harmeling added two free throws for a 73-67 lead with 2:05 left in overtime. Williams sank a reverse layup for the Wildcats and then added a pair of free throws to cut WSU's lead to 73-71 with 1:02 left.
Low sank a pair of free throws for a 75-71 lead, and Williams' turnover led to an easy layup by Matthews for a 77-71 lead.
Arizona's only previous loss was to Virginia in the season opener.
Arizona had won three straight over WSU. They lead the series 48-12, and had won 41 of the past 42. Washington State's last win was on Jan. 29, 2005 in Tucson.