With the door remaining cracked open with a chance for a share of the Mountain West regular season title, the San Diego State Aztecs effort to hold off the UNLV Runnin’ Rebels 89-86 matched how frenetic the conference’s close has been.BJ Davis hit a 3-pointer from the top of the key with 3:24 to play, part of his career-high 30 points, that gave the Aztecs (20-10, 14-6 Mountain West) a lead they’d hold for the rest of the way. The junior from Modesto and senior Reese Dixon-Waters helped close th