5 guides. How to read NFL odds, what a model edge measures, how to size a bankroll and why same-game parlays need correlation.
Betting basics
- How to Read NFL Odds American odds, implied probability and the vig — the three ideas every line on a sportsbook is built from.
- Same-Game Parlays: Why the Quoted Price Lies Parlay legs from one game move together — and naive multiplication ignores it. What correlation does to a slip's real probability.
- Model Edges and Star Ratings, Explained What an "edge" actually measures, why ours are leans rather than picks, and how the star rating condenses it.
- Bankroll Management: Units, Kelly and Survival The maths of not going broke — flat units, fractional Kelly, and why bet sizing beats bet picking.
- What Is Expected Value in NFL Betting? EV is the only score that matters over a season: what it measures, the maths on a −110 bet, and why price beats picking winners.