(Eugene, OR) -- Tyler Dorsey hit six threes en route to 23 points as Oregon blew out fifth-ranked Arizona 85-58 Saturday in Eugene. The 13th-ranked Ducks led 38-18 at the half and cruised from there. Oregon is 21-and-3 overall and 10-and-1 in the Pac-12. The Ducks play Thursday at eighth-ranked UCLA.