What Does -110 Mean? A Beginner's Guide to Betting Odds

Understanding Betting Odds If you're new to sports betting, the numbers on a sportsbook can look like a foreign language. What does -110 mean? Why is one team +150 and another -200? And what's a "spread" anyway? This guide breaks it all down in plain English. American Odds: The Basics American odds are the most common format you'll see at US sportsbooks. They revolve around the number 100. Negative odds (-) tell you how much you need to bet to win $100. For example, -110 means you need to bet $110 to win $100 in profit. If your bet hits, you get back $210 total ($110 stake + $100 profit). Positive odds (+) tell you how much you'd win on a $100 bet. For example, +150 means a $100 bet would return $150 in profit. Total payout: $250. Why -110 Is Everywhere You'll notice that most spread and total bets are listed at -110 on both sides. This is the sportsbook's built-in margin — called the vig or juice. It's how they make money regardless of the outcome. When both sides are -110, the sportsbook is essentially charging you a small fee for the privilege of placing the bet. Over time, finding lines better than -110 (like -105 or even +100) is one of the simplest ways to improve your long-term results. Spreads, Moneylines, and Totals Moneyline — A straight-up bet on which team wins. No spread, no point margin. Just pick the winner. Spread — The favorite "gives" points to the underdog. If the Lakers are -5.5, they need to win by 6 or more for a spread bet to cash. If the Celtics are +5.5, they can lose by up to 5 and your bet still wins. Totals (Over/Under) — A bet on the combined score of both teams. If the total is set at 215.5, you're betting whether the final combined score goes over or under that number. Player Props Player props are bets on individual player performance — things like "LeBron James Over 25.5 Points" or "Aaron Judge Over 1.5 Total Bases." These are where AI analysis really shines, because the models can factor in matchup data, recent form, and historical splits that casual bettors often miss. The Bottom Line Understanding odds is the foundation of smart betting. Once you know what the numbers mean, you can start identifying value — situations where the odds don't accurately reflect the true probability of an outcome. That's exactly what My Bet Assist's AI is designed to find. --- New to betting? Start with 6 free AI picks and see how data-driven analysis works in practice. --- Related reading: Learn how AI is changing sports betting and see our AI in action with the latest weekly picks recap.