Two upset losses means the Big 12 has ceded its spot as college football's top conference, according to ESPN Stats & Info.
The league held on to its No. 1 spot in the computer rankings, thanks in large part to a 27-3 record in nonconference play, but having just three teams ranked in the AP poll allowed the SEC to open up a lead.
Kansas State's loss to Oklahoma dropped them from 10th to 17th in the AP Poll, but this loss did not seem to affect the rankings as significantly as the losses by Texas A&M and Texas Tech. The difference is that Oklahoma gained many of the AP points that Kansas State lost, while Iowa State and Missouri did not earn any AP votes for the Big 12 after their wins.
Texas Tech and Texas A&M are still looming around the top 25, and with conference play in full swing, we won't see much significant movement in the conference rankings, but it looks like the SEC may hang on to the top spot for a bit, barring upsets.