EUGENE — Troy Brown had a season-high 21 points and seven rebounds, and Elijah Brown added 17 points to help lead to a 77-62 victory over Colorado on Sunday night.
Kenny Wooten had 13 points and seven rebounds for the Ducks (11-4, 1-1 Pac-12). Payton Pritchard added 12 points.
The Buffaloes (8-6, 0-2) were led by Namon Wright with 20 points, and McKinley Wright had 13 points and seven assists.
Colorado outrebounded Oregon 32-30 but finished with 20 turnovers and a season-low eight free-throw attempts.
The Ducks' press fueled a 13-2 run, after Buffaloes had pulled within four points early in the second half, to open a 52-37 lead. Colorado trailed by double figures the rest of the way.
Troy Brown, a freshman, and Elijah Brown, a graduate transfer, combined to shoot 13 of 22 from the field as Oregon made 26 of 51 overall and hit 19-of-22 free throws.
The Buffaloes started 1 of 8 from the field and finished shooting 42.4 percent (25 of 59).
Oregon's season hits a critical juncture as a soft early schedule — with only one true road game among its first 15 contests — turns tough with a Civil War rivalry game at improved Oregon State before the Ducks visit No. 3 Arizona State and No. 17 Arizona.
Colorado opened the season with six consecutive wins, but has lost six of its last eight games, including three in a row. The Buffaloes return to Boulder brings visits from the Pac-12's only two ranked teams this week in Arizona State and Arizona.
Colorado: Hosts No. 3 Arizona State on Thursday night.
Oregon: Plays at Oregon State on Friday night.