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Historical · franchise

NFL Dynasty Tracker

Every sustained era of NFL dominance — consecutive seasons at 60%+ win rate with a minimum of 3 seasons. Dynasty Score = avg win% × length × 10 + championships × 15. Gold bars = championship seasons.

Dynasty Score rewards sustained excellence over flash-in-the-pan single seasons. A 10-year dynasty with 3 titles outscores a 5-year dynasty even with the same average win%.· 90 dynasties across NFL history
1
Buffalo Bills196419663 seasons
avg win%: 73.8%peak: 86% (1964)2 titles
52.1
dynasty score
2
Buffalo Bills201920257 seasons
avg win%: 71.6%peak: 81% (2020)
50.1
dynasty score
3
Buffalo Bills199019934 seasons
avg win%: 76.6%peak: 81% (1990)
30.6
dynasty score

90 dynasties detected · Built Jul 14, 2026 · StatVault franchise encyclopedia