AP Top 25 Reality Check: When does head-to-head matter?

Oregon defensive end Kayvon Thibodeaux celebrates after his team scored a safety during the second half of an NCAA college football game against Washington, Saturday, Nov. 6, 2021, in Seattle. (AP Photo/Stephen Brashear)

Ohio State's Chris Olave (2) stiff arms Nebraska's Quinton Newsome (6) while carrying the ball during the first half of an NCAA college football game Saturday, Nov. 6, 2021, at Memorial Stadium in Lincoln, Neb. Ohio State defeated Nebraska 26-17. (AP Photo/Rebecca S. Gratz)