Guides
Deep dives on NFL history, all-time teams, and how to build a roster that goes undefeated.
How 20-0 Player Ratings Work
What the 0-100 player score means, how cross-era judgment works, and how ratings reach the roster simulation without pretending to be official NFL grades.
Updated Jul 28, 2026 · 1 source
Read the guide →Why Balanced Rosters Win in the 20-0 Simulation
A model-level strategy guide to weak-side leverage, empty-slot cost, flex option value, reroll timing, and playoff risk in 20-0.
Updated Jul 28, 2026 · 1 source
Read the guide →How to Read Your Gridiron IQ Scout Report
Understand choices, best picks, rank percentile, miss gaps, and why Scout Rating can disagree with your simulated season grade.
Updated Jul 28, 2026 · 1 source
Read the guide →The 10 Greatest NFL Teams of All Time, Ranked
A ranked breakdown of the most dominant single-season teams in NFL history — from the 1985 Bears to the 2007 Patriots — and what made each nearly unbeatable.
Updated Jul 28, 2026 · 10 sources
Read the guide →Why the 1972 Dolphins' Perfect Season Still Matters
The only perfect season in NFL history: how the 1972 Dolphins went 17-0, why it has never been repeated, and what it means to go undefeated.
Updated Jul 28, 2026 · 3 sources
Read the guide →How to Build an Undefeated Roster: A Draft Strategy Guide
A practical guide to drafting a 20-0 roster — balancing offense and defense, when to reach for a position, and how to read player value across eras.
Updated Jul 28, 2026 · 1 source
Read the guide →The Best NFL Defenses Ever, Ranked
Ranking the most dominant defenses in NFL history — the 1985 Bears, the Steel Curtain, the Purple People Eaters — and what separated them from the rest.
Updated Jul 28, 2026 · 8 sources
Read the guide →Classic vs Gridiron IQ: Which Mode Actually Tests Football Knowledge
The difference between 20-0's two modes, why hiding the ratings changes how you draft, and which one really proves you know football.
Updated Jul 28, 2026 · 1 source
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