The Cardinal (17-8, 9-5 Pac-10) wrapped up its 14th consecutive home sweep against the Oregon schools and gave its tournament hopes a big boost with its fifth win of the season against a ranked opponent. The Cardinal beat Oregon State 70-55 Thursday. At No. 7 Pittsburgh 65, Washington 61 Pitt was outrebounded, didn’t shoot well from behind the 3-point line for the second consecutive game and got little production from its best player, 7-footer Aaron Gray. No matter, Mike Cook scored 15 points and the seventh-ranked Panthers beat Washington in the first game between the schools in more than 56 years. The Panthers’ effort reminded Huskies coach Lorenzo Romar of a much more familiar Pac-10 opponent: No. 5 UCLA. “I think they’re right there with the best teams in the country,” Romar said of Pitt. “They’re very physical … and UCLA and Pitt play very similarly for obvious reasons.” At California 84, Oregon State 80 Freshman forward Patrick Christopher scored 24 points to lead California to an overtime victory. The game almost ended in a 71-68 Cal (14-12, 6-8 Pac 10) victory as the buzzer sounded in regulation. But OSU (10-18, 2-13) was given another 2.3 seconds when the officials decided the clock had started early on the Beavers’ final possession. Cal deflected the Beavers’ first inbounds pass, giving OSU just 1.4 seconds. But Angelo Tsagarakis caught the next inbounds pass and sank a 3-pointer just before the buzzer sounded to tie the game and set up the OT. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set! Brook Lopez scored a career-high 26 points and keyed a big second-half run that helped Stanford beat No. 15 Oregon for the 21st consecutive time at Maples Pavilion, 88-69 Saturday night. “We knew coming in that we had to bear down and be tough,” Lopez said. “Everybody needs to win out these last few games to get the best possible chance for postseason play. We knew we had to come in and play tough and go right at them.” STANFORD – Stanford came into the weekend with its second-leading scorer sidelined and its NCAA tournament hopes in doubt. Another sweep against the Oregon schools has improved the outlook for the Cardinal quite a bit.