SAN JOSE, Cali - Washington State won its Pac-10 opener at winless Stanford 36 to 10 today, improving its overall record to 3 and 1. Mike Graise returned an interception 33 yards for a touchdown and, Jason Hill blocked a punt and caught a touchdown pass. Alex Brink had two touchdown passes and ran for a third, and Mkristo Bruce had a school-record five sacks for the Cougars, who won for the fourth straight time at Stanford. Washington State was a 10-point favorite. The Cardinal dropped to 0 and 4 overall and, 0 and 2 in the Pac-10. The Cougars will be in Pullman next Saturday at 4 p.m. to face powerful USC.