Arizona got off to an awful start, threatening to spoil its anniversary party at the McKale Center. Even when the Wildcats rallied to get within reach of Stanford, they couldn't seem to pull away. The seniors, as usual, took over just in time. Mark Lyons scored a season-high 25 points and led a key stretch in the second half, Solomon Hill scored 20 of his 23 points in the second half, and No. 7 Arizona held off Stanford 73-66 Wednesday night on the 40th anniversary of the first game at the McKale Center.