What is a point spread?
Learn how favorites, underdogs and covering the spread work.
Read the guide →NFL BETTING 101
Understand the numbers
before you make a call.
Plain-English explanations of the betting terms, prices and market concepts that show up around NFL games every week.
START HERE
Build the basics one concept at a time.
These guides explain what the numbers mean. They are educational references, not guarantees or picks.
How does a moneyline work?
Read positive and negative American odds and understand the market favorite.
Read the guide →What does -110 mean?
See how common -110 pricing works and how payouts are calculated.
Read the guide →What is an over/under?
Understand NFL totals and how over and under wagers are settled.
Read the guide →What is implied probability?
Turn American odds into a percentage that is easier to compare.
Read the guide →What is line movement?
See how spreads, totals and moneylines change over time.
Read the guide →Favorites and underdogs
Understand what the plus and minus signs mean across common markets.
Read the guide →What are vig and juice?
Learn how sportsbook margin is built into the price you see.
Read the guide →What is sportsbook hold?
Understand the theoretical margin contained in a two-way market.
Read the guide →What is a push?
Learn what happens when a final result lands exactly on a whole-number line.
Read the guide →What are key numbers?
See why margins such as 3 and 7 matter more often in NFL betting.
Read the guide →Bankrolls and units
Use consistent wager sizing and a dedicated bankroll to add structure.
Read the guide →What is line shopping?
Understand why comparing legal sportsbook prices can matter.
Read the guide →What is the closing line?
Learn what the final market price can tell you when reviewing a wager.
Read the guide →How do parlays work?
Understand how multiple selections combine into one higher-variance wager.
Read the guide →How do teasers work?
Learn how adjusted spreads work and why teaser rules vary by sportsbook.
Read the guide →Injuries and weather
See how availability and conditions can affect expectations and market prices.
Read the guide →Common betting mistakes
Avoid chasing losses, ignoring price and confusing probability with certainty.
Read the guide →PUT IT TO WORK
Use the concepts on a live matchup.
Current game pages combine market prices, team form, injuries, recent results and community voting so you can see these ideas in context.
See this week’s NFL games →