Arizona RB Ka'Deem Carey now leads the nation with 161 yards rushing per game .
The Wildcats did lose 49 - 29 to the Buffaloes in 2011 , their first meeting as members of the Pac - 12 's South Division .
Wildcats RB Ka'Deem Carey now leads the nation with 161 yards rushing per game .
The Wildcats did lose 49 - 29 to the Buffaloes in 2011 , their first meeting as members of the Pac - 12 's South Division .