The Colorado Buffaloes couldn't keep up with the Arizona Wildcats' offense, and the 56-31 loss on Saturday in Tucson, Ariz., kept them alone in the Pac-12 South basement.
The Buffaloes are 1-6 in a conference play with the victory at Washington State on Sept. 22 their only win on the year. Had the Buffaloes won at Arizona, they would have an identical conference record with the Utah Utes, who are 2-5 in Pac-12 play after falling 34-15 to the Washington Huskies Saturday in Seattle.
The UCLA Bruins have a half-game lead on the USC Trojans atop the Pac-12 South, while Arizona is in third place with a 3-4 conference mark and a better overall record than the ASU Sun Devils.
Oregon has control in the Pac-12 North with a perfect seven games in the Pac-12. Chip Kelly's Ducks have a one-game lead over the Stanford Cardinal and a two-game lead over the Oregon State Beavers.
Here's a peek at the entire Pac-12 standings: