25 seasons · 2002–2026
Seasons
Every completed season since the league realigned to 32 teams — earlier seasons play by different rules and are deliberately out.
| season | champion | runner-up | best record | games | seeds |
|---|---|---|---|---|---|
| 2026 | — | — | SF 4-0 | 65 + 0 | partial |
| 2025 |  SEA | NE | SEA 14-3 | 272 + 13 | partial |
| 2024 |  PHI | KC | DET 15-2 | 272 + 13 | verified |
| 2023 |  KC | SF | BAL 13-4 | 272 + 13 | verified |
| 2022 | KC | PHI | PHI 14-3 | 271 + 13 | verified |
| 2021 |  LAR | CIN | TB 13-4 | 272 + 13 | verified |
| 2020 |  TB | KC | KC 14-2 | 256 + 13 | partial |
| 2019 | KC | SF | BAL 14-2 | 256 + 11 | verified |
| 2018 |  NE | LAR | NO 13-3 | 256 + 11 | verified |
| 2017 | PHI | NE | NE 13-3 | 256 + 11 | partial |
| 2016 | NE | ATL | NE 14-2 | 256 + 11 | verified |
| 2015 |  DEN | CAR | CAR 15-1 | 256 + 11 | partial |
| 2014 | NE | SEA | NE 12-4 | 256 + 11 | verified |
| 2013 | SEA | DEN | DEN 13-3 | 256 + 11 | verified |
| 2012 |  BAL | SF | DEN 13-3 | 256 + 11 | verified |
| 2011 |  NYG | NE | GB 15-1 | 256 + 11 | partial |
| 2010 |  GB | PIT | NE 14-2 | 256 + 11 | verified |
| 2009 |  NO | IND | IND 14-2 | 256 + 11 | verified |
| 2008 |  PIT | ARI | TEN 13-3 | 256 + 11 | verified |
| 2007 | NYG | NE | NE 16-0 | 256 + 11 | partial |
| 2006 |  IND | CHI | LAC 14-2 | 256 + 11 | partial |
| 2005 | PIT | SEA | IND 14-2 | 256 + 11 | verified |
| 2004 | NE | PHI | PIT 15-1 | 256 + 11 | verified |
| 2003 | NE | CAR | NE 14-2 | 256 + 11 | verified |
| 2002 | TB | LV | PHI 12-4 | 256 + 11 | partial |
Seeds are reconstructed from final standings and checked against the postseason that actually played — 9 seasons turn on an unmodelled tiebreaker and carry no seed numbers rather than wrong ones. 2022 has 271 games: Buffalo at Cincinnati was cancelled and declared a no-contest.