Colorado hangs on in Pac-12 LOS ANGELES, March 10 (UPI) -- Spencer Dinwiddie boosted Colorado to a big lead Saturday and the Buffaloes averted a collapse before defeating Arizona 53-51 in the Pac-12 title game. Colorado won the Pac-12 Tournament championship in its first year in the league and earned a spot in the NCAA tourney for the first time in nine years. The Buffaloes took a 12-point lead with 9:15 to play and then scored only three more points the rest of the game. Arizona drew within four on Kyle Fogg's two free throws with 35 seconds left and then closed within two on a jumper by Solomon Hill with 25 seconds remaining. Colorado's Austin Dufault was fouled with 14 seconds left but he missed both free throws to give Arizona a chance to pull out the victory. That chance went away, however, when Fogg misfired on a 3-pointer just before the buzzer. Dinwiddie scored 14 points to lead Colorado (23-11), which came into the tournament as the No. Regular-season champion Washington was eliminated by Oregon State in the quarterfinals and the Beavers were then knocked out by fourth-seeded Arizona in the semifinals. Fogg had 14 points for Arizona (23-11), but he made only 4-of-11 from the field. If Washington is left out of the NCAA Tournament, it will be the first time the winner of a major conference regular-season title has not participated in the event.