Fun article over at SB Nation on national championship odds in college football for this season. The question the folks were trying to answer was what is the smallest number of teams you could group together to give you a 50/50 (or better) shot of containing the eventual champion? As it turns out, most people thought “taking the top five or six teams presents close to a fair wagering opportunity.”

What about in the NFL? Well, despite the presence of nearly 100 fewer teams, the answer is about the same. The Patriots, Packers, Panthers, Steelers, Seahawks, and Cardinals form the upper crust of the NFL, at least according to Vegas odds. Together, that group has about a 50% chance of containing the Super Bowl 51 champion.

Take a look at the odds from Football Locks, which is pretty similar to the odds at other places. Here’s how to read the table below: The Patriots have 15/2 odds, which translates to 1 out of 8.5, or 11.8%. That includes a vig, tho, and if we remove the vig from each team, that drops the Patriots odds to 9.9%, which is a better approximation of New England’s real odds. I then sorted the teams in the NFL by that number, and calculated the cumulative Super Bowl percentage — after six teams, it’s pretty close to a 50/50 proposition.

Team Odds Implied % W/o Vig Cumulative New England Patriots 15/2 11.8% 9.9% 9.9% Green Bay Packers 17/2 10.5% 8.8% 18.7% Carolina Panthers 10/1 9.1% 7.6% 26.3% Pittsburgh Steelers 10/1 9.1% 7.6% 33.9% Seattle Seahawks 10/1 9.1% 7.6% 41.5% Arizona Cardinals 11/1 8.3% 7% 48.5% Denver Broncos 15/1 6.3% 5.2% 53.8% Minnesota Vikings 18/1 5.3% 4.4% 58.2% Cincinnati Bengals 20/1 4.8% 4% 62.2% Dallas Cowboys 20/1 4.8% 4% 66.2% Kansas City Chiefs 23/1 4.2% 3.5% 69.7% Indianapolis Colts 25/1 3.8% 3.2% 72.9% New York Giants 30/1 3.2% 2.7% 75.6% Oakland Raiders 30/1 3.2% 2.7% 78.3% Baltimore Ravens 35/1 2.8% 2.3% 80.6% Houston Texans 55/1 1.8% 1.5% 82.1% Chicago Bears 60/1 1.6% 1.4% 83.5% Jacksonville Jaguars 60/1 1.6% 1.4% 84.9% Miami Dolphins 60/1 1.6% 1.4% 86.2% New York Jets 60/1 1.6% 1.4% 87.6% Los Angeles Rams 65/1 1.5% 1.3% 88.9% New Orleans Saints 65/1 1.5% 1.3% 90.2% Washington Redskins 65/1 1.5% 1.3% 91.4% Atlanta Falcons 70/1 1.4% 1.2% 92.6% Buffalo Bills 70/1 1.4% 1.2% 93.8% Detroit Lions 80/1 1.2% 1% 94.8% Philadelphia Eagles 80/1 1.2% 1% 95.9% San Diego Chargers 80/1 1.2% 1% 96.9% Tampa Bay Buccaneers 80/1 1.2% 1% 97.9% San Francisco 49ers 100/1 1% 0.8% 98.8% Tennessee Titans 100/1 1% 0.8% 99.6% Cleveland Browns 200/1 0.5% 0.4% 100.0%

So, what do you think? Would you take the top 6 teams or the field?

The last 3 years, a heavy Super Bowl favorite has won it all. In 2013, the Seahawks had the 3rd best odds at 17/2; the next year, the Patriots were at 8/1, tied with San Francisco for the 3rd best odds. And last year, the Broncos were 7th at 12 to 1, but that still put them in tier 1 (the next team was at 25/1). But back in 2012, the Ravens were at 18/1 to win the Super Bowl from Bovada in early August; that made them one of 4 teams tied for having the 9th best odds. The year before, the Giants were 25/1 in early August, good enough for 12th place.