Fivethirtyeight runs playoff odds based on the likely outcome of each game, and they have the Badgers at 4%, so you're in the ballpark. https://projects.fivethirtyeight.com/2019-college-football-predictions/ If the Badger DO manage to win out, they're at 33%. That number will move a lot depending on the next two weeks worth of outcomes, but if they somehow beat Minnesota and OSU (neither of which can be assumed, of course), there's a plausible chance. But practically? Not really. So Alabama, currently #5, IF they win out has a 19% chance of making the playoff? Even though they're already #5, would be a 1 loss team and would beat Auburn in the meantime, they have a 19% chance of making the playoff if they win out and we have a 33% chance of making the playoff if we win out? Yeah, I call bullcrap on that.