Oklahoma No. 5, ahead of Ohio St.

Oklahoma was No. 5 in the pivotal second-to-last College Football Playoff rankings released Tuesday night, ahead of Ohio State heading into championship weekend when the final four will be set.

The biggest question facing the selection committee this week was how much to value Ohio State’s 62-39 blowout of Michigan on Saturday. The answer: The Buckeyes moved up four spots but were still stuck behind the Sooners.

“I really don’t have a measurement for closeness,” selection committee chairman Rob Mullens said when asked about how much Ohio State and Oklahoma were separated.

Mullens cited Oklahoma’s historic offense. The Sooners are on pace to set an FBS record for yards per play, averaging 8.92.

“While their defense has been a challenge, their offense has been superior,” Mullens said.

The top three teams in the selection committee’s rankings, released Tuesday, held steady for a fourth consecutive week. Alabama, Clemson and Notre Dame — all unbeaten — are Nos. 1, 2 and 3. Georgia moved into the fourth spot that was previously occupied by Michigan, heading into its SEC Championship Game against Alabama. It’s a given the SEC winner makes the playoff. Maybe the loser, too.

Notre Dame is already in the clubhouse at 12-0 and Clemson faces Pittsburgh in the Atlantic Coast Conference Championship Game. That leaves one spot very much in play.

Ohio State faces Northwestern

(8-4) in the Big Ten championship in Indianapolis and Oklahoma rematches Texas (9-3) in the Big 12 title game in Arlington, Texas. The Longhorns handed the Sooners their only regular-season loss in October. Ohio State’s lone loss was by 29 points at Purdue.

Can the Buckeyes vault past the Sooners if both win Saturday?

There is some precedent. In 2014, Ohio State beat Wisconsin 59-0 in the Big 12 championship game and jumped from sixth to fourth, passing co-Big 12 champions Baylor and TCU. The Buckeyes might need a similar performance to have a shot this time.