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Andre Roberson had 18 points and 13 rebounds, and Spencer Dinwiddie and Askia Booker added 15 points apiece for Colorado (5-0), which is off to its best start since also opening 5-0 in 1989-90.

The Buffaloes improved to 9-1 at home against Air Force (5-1), which fell one win shy of matching its only 6-0 start in 1982-83.

Michael Lyons scored 20 points for the Falcons, who fell to 2-76 when playing ranked opponents. Todd Fletcher matched his career high with 18 points.