College Football Playoff Board of Managers Votes to Expand Playoff to 12 Teams - College Football Playoff
How the NFL playoff picture works
Football NFL Playoff Rules
NFL Playoffs 2023-24 dates, format, predictions and more
Updated look at NFC playoff picture after Week 17
2022 FCS playoff bracket predictions: Teams, seeds, picks less than 1 month from selections
College Football Playoff will expand to 12 teams in 2026, maybe sooner
NFL playoff bracket, matchups and schedule - The Washington Post
Regular Season, Interconference Games, Playoffs – An Explanation