If there’s one thing this college football season has taught us, it’s that no game is safe for a College Football Playoff contender.

Saturday hammered that point home.

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No. 3 Ohio State flipped the Big Ten race on its head, completing a massive comeback over then-No. 2 Penn State. The Buckeyes moved up three spots for their efforts behind more than 400 all-purpose yards for J.T. Barrett.

Huge win for Ohio State, but that had to feel awesome for Barrett, specifically. There’s been a lot of chatter that he’s not up to the task in big games. He flamed out against Clemson in last year’s Playoff. He struggled against Oklahoma earlier this season.

Barrett may not have silenced those doubters completely on Saturday, but he showed he’s perfectly capable of balling out on the biggest stage. Props to him and the resurgent Buckeye offense.

Penn State’s loss opened the door up for Georgia to slide up to the No. 2 spot, giving the SEC the top two teams in the rankings. The Bulldogs continue to look unbeatable. They dominated Florida from start to finish in Week 9. If Alabama and Georgia can stay undefeated until the SEC championship game, it will be one of the highly-touted conference title matchups ever.

The question: would the loser of that game still make the Playoff? Maybe, maybe not. Losses like TCU’s help the SEC’s cause. Iowa State, which checks in at No. 14, struck again on Saturday, upsetting the Horned Frogs in Ames. TCU was easily the Big 12’s best shot at a Playoff berth – with the Frogs’ loss, it doesn’t seem likely that the Big 12 will send a school to the festivities.