Arizona's Eugene Edgerson.
MacCulloch reaches 1,000-point milestone in 112-81 loss.
TUCSON, Ariz. (AP) - Michael Dickerson scored 18 of his season-high 30 points in the first 5:40 of the second half as No. 4 Arizona beat Washington 112-81 Thursday night.
Dickerson finished with 25 points in the second half on 11-for-11 shooting.
Mike Bibby had 22 points, five rebounds, five assists and five steals for Arizona (20-3, 10-0 Pac-10), which won its 13th straight and reached the 20-win plateau for the 11th consecutive season.
Todd MacCulloch had 26 points and 15 rebounds for Washington (13-6, 6-4), giving him 1,007 points for his career. He is the school's 25th player to reach that milestone.
Reserve Dan Dickau added 12 points - all in the first half, but the Huskies couldn't match Arizona's speed for the second straight game. The Wildcats beat Washington 110-91 last month in Seattle.
The Huskies shot 58 percent in the first half, with MacCulloch hitting 9-of-10 from the floor, but Arizona scored the last five points to open a 50-43 halftime lead.
The Wildcats started the second half with a 26-5 run that put the game out of reach.
Dickerson sank two 3-pointers and an 18-footer in the first 2:15 of the second half, and Bennett Davison had a putback to complete a 10-0 run and lift Arizona to a 60-43 lead with 17:14 to play.