Double-elimination tournament - Wikipedia
Here's a closer look at how the NFL playoff format works
How Do the NFL Playoffs Work? Explaining Format, Byes, Home-Field Advantage
Playoff Schedule – ESPN Fan Support
How does the NFL Playoff bracket work? Explaining byes, AFC-NFC seeding, and format for the 2022-23 postseason
How many teams will make NFL Playoffs? How many Wild Card teams will be in the 2022 playoffs - AS USA
NFL Playoff Bracket Following Wild Card Round: Super Wild Card Weekend results, Divisonal Round schedule
How does this playoff format work? : r/FFCommish
Because the Toots lost, here's what the playoff picture would look like if the season ended today: : r/49ers
NFL playoff projections: How seeding & matchups will look in AFC, NFC brackets
NFL playoffs schedule, bracket and what you need to know - The Washington Post
2019 NFL Playoff Bracket and Wild Card TV Schedule
NFL expanded playoffs, explained: How many teams will make playoffs, what else to know