NFL Week 18 preview: Playoff spots on the line in final week of regular season
NFL Playoffs Generate No Financial Windfall for Individual Teams –
XFL playoff bracket, explained: How tiebreakers, seeding, format will work in 2023
NFL Playoffs 2022 Rules: How do NFL Playoffs work?
2022 NFL playoff picture: Making the case for/against seven fringe teams
NFL playoff bracket, explained: How byes, seeding will work in expanded 2021 format
Run the Numbers: Exploring the Math Behind Any N.F.L. Team's Playoff Chances - The New York Times
NFL overtime rules for playoffs, explained: How is winner determined?
How do the NFL Playoffs Work