Askia Booker scored 27 points, and No. 20 Colorado rallied from a 10-point deficit in the second half to hand No. 10 Oregon its first loss of the season, 100-91 on Sunday in Boulder, Colo.
Spencer Dinwiddie had 23 points for Colorado (13-2, 2-0 Pac-12), which is off to its best start since the 1968-69 team began the season 13-2.
Mike Moser scored 24 points to lead Oregon (13-1, 1-1), which was denied its first 14-0 start since 1937-38. Joseph Young and Damyean Dotson each added 16 points for the Ducks, who entered the game as the nation's highest-scoring team.
San Diego State 61, Kansas 57: Xavier Thames hit four free throws in the closing seconds, and the No. 21 Aztecs ended the No. 16 Jayhawks' nonconference home winning streak at 68 games.
Kansas (9-4) had a chance to tie the score with 11.9 seconds left, but Perry Ellis made only 1 of 2 free throws, and the Jayhawks were forced to foul. Thames hit two free throws, then after Kansas' Frank Mason was 1 of 2 at the line, Thames made two more with 4.6 seconds left.
Skylar Spencer led the Aztecs (12-1) with 13 points. Andrew Wiggins scored 14 for Kansas.
Wisconsin 75, Iowa 71: Ben Brust scored 19 points as the No. 4 Badgers (15-0, 2-0 Big Ten) defeated the No. 22 Hawkeyes (12-3, 1-1) in Madison, Wis., to match the best start in school history. The 1911-12 and 1913-14 teams both started 15-0.
Wichita State 67, Northern Iowa 53: Fred VanVleet had a season-high 22 points to lead the No. 8 Shockers (15-0, 2-0 Missouri Valley) past the visiting Panthers (7-7, 1-1).
Wake Forest 73, North Carolina 67: Travis McKie scored 10 of his 16 points in the second half to help the host Demon Deacons (11-3) beat the No. 19 Tar Heels (10-4) in an Atlantic Coast Conference opener.
UCLA 107, USC 73: Kyle Anderson had 23 points as the Bruins (12-2) routed the Trojans (9-5) in a Pac-12 opener at Pauley Pavilion.
Arizona State 66, Washington State 47: Jermaine Marshall scored 18 of his 26 points in the second half as the host Sun Devils (12-3, 1-1 Pac-12) beat the Cougars (7-7, 0-2).
Snowbound: The Southern Illinois-Carbondale team had to make new travel plans after its bus got stuck in the snow. The Salukis were on their way home after a 66-48 loss at Illinois State when their bus was stranded off Interstate 57. Assistant coach Anthony Beane Sr. told The Southern Illinoisan that no one was injured, and the plan was for the team to spend the night at a hotel in nearby Tuscola, Ill.
Head coach Barry Hinson and assistant Tom Hankins were not with the team. They were traveling in a rental car. Beane and the players had to wait for a tow truck to get the bus out of the snow. Beane told the newspaper that if a truck was unable to reach the bus, the Illinois State Police had agreed to help the team get to its hotel.
Baylor 75, Kansas 55: Odyssey Sims scored 30 points to lead the No. 9 Lady Bears (12-1, 2-0 Big 12) to a rout of the visiting Jayhawks (7-7, 0-2).
Arizona State 78, Washington 60: Katie Hempen scored 12 points off the bench to spark the No. 24 Sun Devils (12-2, 1-1 Pac-12) past the host Huskies (8-5, 1-1).