Every piece of analysis here is powered by the Spreadspoke dataset — 14,371 games, 59 seasons, 119 columns. Numbers, not narratives.
Every NFL game in the Super Bowl era decided by 50+ points. From the Jaguars' 62–7 playoff demolition to a 70–20 regular-season anomaly — what causes a total system collapse?
Favorites went 21–0 straight up but only 9–12 ATS across every game with a spread of -18.5 or higher. The elite teams win — the numbers usually don't.
Only 8 NFL games have ever closed at -20 or higher. Favorites went 1–7 ATS in those games. The 2007 Patriots were 0–4. The data is brutal.
Median total points by decade: 38 in the 1970s, 46 today. Plus: the disappearing home-field advantage — from +3.04 avg margin in the 70s to +1.86 now.
The lowest total ever: 3 points. The highest: 113. But 80% of games land between 20 and 60 points. The full historical scoring curve and what it tells bettors.
-3 is the most common spread in NFL history (1,809 times). More than 80% of all spreads fall between 0 and -7.5. Only 13 games have ever closed at -20 or more.
Under hit rate at calm conditions: 49%. At 20+ mph wind: 61%. Wind speed — not temperature — is the only weather variable that consistently predicts scoring suppression. Includes full extreme-wind game registry.
Home underdogs are 23–9 ATS (72%) in Wild Card history. Road favorites laying 10+ points are 0–2 ATS all-time. Playoff home-field is consistently underpriced by the market.
Home underdogs are 6–2 straight up (75%) in the Divisional Round — and 75% ATS. Small home favorites (1–3 pts) cover only 46% of the time. Wind, not temperature, kills scores.
Favorites cover 55.3% ATS in the Conference round. When totals are set at 45.5+, overs hit 60%. The most reliable chalk round in the entire playoffs — here's why.
The Carolina Panthers set as the largest home underdog in playoff history at +10.5. Home dogs of 4+ points have gone 6–0 ATS since 2000 — and won 5 of those 6 outright.
All 58 Super Bowls with O/U data: 29–28–1 overall. When lines are set 40.5–46.0, overs hit 63%. When above 50, unders dominate at 64%. Full historical results table included.