Stanford's five-game winning streak against Colorado dates to 1991. Christian McCaffrey and the Cardinal will look to make it six in a row when they play host to Colorado on Oct. 22.
1991 in Stanford: Stanford 28, Colorado 21
1993 in Stanford: Stanford 41, Colorado 37
2011 in Stanford: Stanford 48, Colorado 7
2012 in Boulder: Stanford 48, Colorado 0
2015 in Boulder: Stanford 42, Colorado 10
Next meeting: Oct. 22 at Stanford
Arizona won five in a row in this series from 2007-11, but after UCLA's 45-24 victory on Saturday it's the Bruins who have won the past five meetings.