If the Buckeyes win out they are in the CFP according to 538 stats.
https://projects.fivethirtyeight.com/2017-college-football-predictions/
From USA Today:
Last weekend was always going to shake up the College Football Playoff picture. It's hard to avoid any changes at the top when three games match top 10 opponents.
The surprise was how easy Miami (Fla.), Oklahoma and Auburn all rolled to victories, and the disappointing showings of Georgia and Notre Dame that left the Bulldogs with no margin for error and the Irish likely headed to a New Year's Six bowl.
The Sooners and Ohio State ultimately ended up as the biggest beneficiaries of the crazy day by moving into the playoff field. They join projected SEC champion Alabama and ACC champion Clemson.
Oklahoma just needs to beat Kansas, West Virginia and its Big 12 title opponent to secure its spot. The Buckeyes likely squeak in as a two-loss Big Ten champion ahead of the one-loss Hurricanes, Wisconsin or a two-loss Pac-12 champion. Of course, a lot is still to happen with three weeks left in the season.
RE-RANK: Miami (Fla.), Auburn surge up rankings after big wins
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For those keeping score, there are 39 bowls (78 totals spots), not counting the College Football Playoff championship game. Among the 128 schools in the Football Bowl Subdivision eligible for a bowl (Mississippi and Coastal Carolina are not), 59 teams have reached the required six wins. There are 24 teams already are eliminated with seven losses.
Reminder: Some conferences may not fulfill their bowl allotment. Asterisks denote a replacement pick.