Every season, fans worry about that first loss. As was usually the case for decades, the first defeat often meant any national title hopes were over.
That is not necessarily the case any more. In the first five years of the College Football Playoff, 14 of the 20 CFP semifinalists had one defeat. This season's first CFP rankings will be revealed Tuesday, Nov. 5, on ESPN. You can read more about the CFP Committee here and how it puts together the rankings here.
Were last year's three undefeated semifinalists an aberration? If so, here are this season's 1-loss teams more than capable of crashing the CFP.
This story will be updated as teams join or drop off the 1-loss list and as teams boost credentials
Here are the top 1-loss College Football Playoff contenders
Below are the teams that have to feel confident about their chances (in descending order) — as long as they win out. A second loss might shut the door permanently, as no two-loss team has reached the CFP semifinals. And that threshold has been clear: A two-loss team has finished No. 5 in each of the last three seasons (2016 Penn State, 2017 Ohio State, 2018 Georgia) behind a 1-loss team.
CFP WATCH: The remaining undefeated teams
The 1-loss leaders: Auburn, Florida and Georgia
Here's something that might seem obvious but is still worth mentioning: A 1-loss SEC champion will make the CFP. Unless the ACC, Big Ten, Big 12 and Pac-12 (or Notre Dame) ALL have an unbeaten champion in one year, there will be room for an SEC champ with a loss. This year, both the Pac-12 and Notre Dame are already off the undefeated list.
That means Auburn, Florida and Georgia aren't out of the hunt. Though the 20-17 loss to South Carolina was the first jaw-dropping score of the season, Georgia can still win out with and get impressive victories against Florida, Auburn and the SEC West champion. But UGA probably doesn't have any margin for error left. And the way it played against the Gamecocks doesn't inspire much confidence.
Florida shouldn't hang its head after competing at LSU before falling 42-28, but the Gators might need to win out now, too. All eyes are going to be on that Nov. 2 date with UGA in Jacksonville. The winner will be in great shape to make it to Atlanta for the SEC title game.
At 6-1 overall with wins against ranked Oregon and at Texas A&M, Auburn already has a strong case should it be 12-1 with a conference title. That would mean wins to come at LSU, Georgia, Alabama and then against the SEC East champion in Atlanta. That's the resume of maybe the No. 1 team in the country, not one outside the CFP.
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The crazy Pac-12: Oregon
The conference that seems to cannibalize its best threats year after year is doing the same again.
Yet Oregon presents the best case. The Ducks lost to only Auburn in a neutral site game in Arlington, Texas. Road games ahead at Southern California and Arizona State aren't overly daunting, but that might be a bad thing — beating the Huskies and the Trojans likely won't move the needle as much as hoped. But the Ducks also most recently put up a big rally to win at Washington.
Oregon came into the season with QB Justin Herbert getting Heisman buzz, but it's the Oregon defense that's won a handful of games (save for Bo Nix and Auburn on the final drive). The Ducks allowed a total of 25 points in the last five games before the 35-31 win against Washington.
Utah also has only one loss. However, Oregon started the season with the most buzz — and that hasn't changed. But the two could play in the Pac-12 title game.
Three seasons ago, 1-loss Washington snuck into the CFP as the No. 4 seed. Realistically, that might be the best-case scenario this season. But it would still require some help.
The Wild Card: Notre Dame
The independent Irish won't get to make a closing argument as other contenders play in conference title games and make a statement in the last day before the final CFP rankings. That didn't matter last season, as a 12-0 Notre Dame team was getting in regardless despite not playing on conference championship weekend.
Even if the Irish go 11-1, they might need a bunch of 2-loss conference champions to have a chance. The schedule doesn't look like it has a signature-win opportunity, so it really might just depend on complete chaos everywhere else.
What about Wisconsin?
The Badgers hadn't trailed all season long. Not one second. But then Illinois' James McCourt made a 39-yard field goal on the final play of the game to stun Wisconsin and possibly wreck Wisconsin's CFP hopes.
Wisconsin would be in decent shape at 12-1 with a Big Ten title, but is that overly realistic after losing to Illinois?
The Badgers now have to play Ohio State on the road. Ranked Iowa and Minnesota are also ahead. And then Wisconsin would probably have to beat Ohio State (or perhaps Penn State) in the Big Ten Championship Game. That means there are a few chances to impress — and a few chances to take a second loss.