Odds

The price on a bet, written the way your sportsbook writes it: American (-110, +150), decimal (1.91, 2.50) or fractional (10/11, 3/2). They all say the same two things: how much you win for what you risk, and the chance the price implies. -110, 1.91 and 10/11 are the same price. You can switch the format in your account settings.

• Implied Probability — The win probability baked into a price. −110 implies ≈52.4%, +150 implies 40%. Comparing the model probability to this is how an edge is found.
• Moneyline — A bet on which team wins outright, no point spread. Favorites carry negative odds, underdogs positive odds.
• Vig / Juice — The bookmaker's built-in margin — the reason both sides of a market aren't priced at +100. Strip it from both sides to get the no-vig fair price.