Michael Williams hit two technical foul shots with 1.7 seconds left in overtime to give San Francisco an 83-81 victory over Colorado on Saturday night.

After Rashad Green's tip-in with 2 seconds left tied the game for San Francisco, Colorado called for a timeout, but didn't have any. Green scored seven of his 18 points in overtime.

Angelo Caloiaro scored a team-high 26 points for the Dons (2-1), including a 3-pointer to give them a 79-73 lead with 1:48 left in overtime. Caloiaro was 6 for 7 on 3-pointers.

Cory Higgins scored 29 points, and Alec Burks scored 28 for the Buffaloes (1-2), who are 6-42 on the road since the 2006-07 season. Burks, a sophomore, is averaging 23.7 points per game this season.

Higgins gave Colorado an 81-79 lead on a three-point play with 10 seconds left. He had a chance to win it in regulation, but missed a jumper with 3.4 seconds left.

There were 10 lead changes in the second half.