After three weeks of nonconference football and a lot of Week 3 cupcakes, the Pac-12 entered full-on conference action in Week 4. This meant teams played considerably better opponents than in previous weeks. It therefore means the caliber of resumes in the conference took on different — and in many cases, improved — dimensions.
As always, we remind you these rankings are based on actual results against specific opponents. They are not predictions or projections of the future. They are not based on betting odds or lines. They are not measurements of which teams are most likely to make the College Football Playoff.
These are results-based rankings. They will change each week, and are meant to change each week, since that’s how rankings are supposed to be done.
Here we go for Week 4: