Sports betting has its own language. This guide translates the most common terms into plain English, with quick examples so you can read lines on any game page with confidence.
New to odds? Start with How to read betting odds. For live examples, open the Schedule, click a matchup, and check the Odds section.
Core bet types
Moneyline (ML)
Meaning: A bet on who wins the game.
- -150 (favorite): risk $150 to win $100 profit.
- +130 (underdog): risk $100 to win $130 profit.
Point spread
Meaning: A handicap that sets an expected margin.
- -4.5: the favorite must win by 5+.
- +4.5: the underdog can lose by 4 or win outright.
Total (Over/Under)
Meaning: A bet on the combined score.
- Over 214.5: wins if the final total is 215+.
- Under 214.5: wins if the final total is 214 or less.
Odds, pricing, and probability
American odds
Meaning: Odds shown as plus/minus numbers in the U.S.
- +200: risk $100 to win $200 profit.
- -150: risk $150 to win $100 profit.
Decimal odds
Meaning: Odds shown as a multiplier (common outside the U.S.).
Example: 2.10 means you receive 2.10× your stake back on a win (stake included).
Implied probability
Meaning: The win probability implied by the odds.
Vig / juice
Meaning: The built-in fee in betting markets.
Example: A spread might be -110 on both sides even though only one side can win—this “extra” is the vig.
Hold
Meaning: The bookmaker’s edge across a market (related to vig). Higher hold generally means worse pricing for bettors.
Common markets and features
Props (player props)
Meaning: A bet on a specific player statistic (points, rebounds, passing yards, etc.).
Example: Player X over 24.5 points.
Alt lines
Meaning: Alternative spreads/totals at different prices.
Example: Instead of -4.5 at -110, you might take -2.5 at -150 (safer but lower payout).
Live betting (in-game)
Meaning: Odds that update during the game.
Tip: Live lines can swing quickly with turnovers, pace, foul trouble, and injuries.
Line movement
Meaning: When odds/spreads/totals change over time.
- News-driven movement: injuries, lineups, weather.
- Market-driven movement: betting volume or sharp action.
Closing line
Meaning: The final price right before the game starts.
Quick decision helpers
When should I consider moneyline?
- When you prefer a simpler bet: pick the winner.
- When the spread feels tight but you still like the favorite.
When should I consider the spread?
- When you think the market underestimates the margin.
- When you like an underdog but want extra points “insurance.”
Next steps
- Learn the basics: How to read betting odds
- NBA-specific context: NBA odds guide
- Explore live games: Schedule