Understanding FanDuel Sportsbook: What It Is and How It Works
FanDuel Sportsbook is a platform where people can place bets on sporting events. The company operates legally in multiple U.S. states where sports betting is permitted by law. To understand how FanDuel functions, it helps to know the basic structure of online sportsbooks and what separates them from other gambling platforms.
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A sportsbook is essentially a business that accepts bets from customers on the outcomes of sports games and events. FanDuel operates similarly to a traditional sports betting shop, but through a digital platform that users can access via website or mobile app. The company makes money by setting odds in a way that ensures they profit over time, regardless of which team or player wins. This is different from a casino, where the house has an edge on games of chance. In sports betting, the odds reflect the probability of an outcome, and the sportsbook takes a commission known as the "vig" or "juice" from losing bets.
FanDuel became one of the largest sportsbooks in America after sports betting was legalized beyond Nevada. The company is owned by Flutter Entertainment, a publicly traded gaming company. As of 2023, FanDuel held significant market share in states where it operates, including New York, Pennsylvania, Illinois, and many others. The platform processes millions of bets annually across professional and college sports.
Understanding how FanDuel operates is important because it shapes how odds are presented, how payouts work, and what kinds of bets are available. The platform uses standard terminology and practices that are consistent across the sports betting industry, though each sportsbook has its own interface and specific features.
Practical Takeaway: FanDuel is a licensed sportsbook where you can place bets on sports outcomes. It's different from casinos because the odds reflect actual probability rather than pure chance. Knowing this distinction helps you understand why some bets pay more than others and how the company structures its business model.
The Types of Bets You Can Place on FanDuel
FanDuel offers several different types of bets, each with different odds and potential payouts. Learning about these bet types will help you understand what options are available and how each one works differently. The most common bets are called "straight bets" or "moneyline bets," which is where you simply pick which team or player will win a game or match.
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A moneyline bet is the simplest form of sports betting. You choose a team to win, and if they win, you collect your payout. The odds tell you how much you need to bet to win $100, or how much you'll win if you bet $100. For example, if the Kansas City Chiefs have odds of -110 against the Buffalo Bills at +110, this means you need to bet $110 on the Chiefs to win $100, while a $100 bet on the Bills would win you $110. The team with the minus sign (-) is favored to win, while the team with the plus sign (+) is considered the underdog.
Another popular bet type is the spread bet, also called "against the spread" or ATS. In spread betting, the sportsbook gives one team a point advantage or disadvantage to even out the perceived skill difference between teams. For instance, if the Lakers are favored by 5 points, you can bet that they'll win by more than 5 points (called "covering the spread"), or you can bet that they'll win by fewer than 5 points or lose outright. Spread bets typically pay -110 odds, meaning you must risk $110 to win $100.
Over/Under bets (also called totals) involve betting on whether the combined score of both teams will be higher or lower than a number set by the sportsbook. If the total is set at 215 points in an NBA game, you can bet the final score will be over 215 or under 215 points. This type of bet doesn't depend on which team wins, only on how many total points are scored.
Parlay bets combine multiple individual bets into one wager. To win a parlay, all of your individual bets must win. The advantage is much higher payouts—a three-team parlay might pay 6-to-1 or higher. The disadvantage is that if even one bet loses, your entire parlay loses. For example, if you parlay three moneyline bets at -110 odds each, winning all three might pay around 6-to-1, meaning a $100 bet could return $600.
FanDuel also offers prop bets (short for proposition bets), which are wagers on specific events or statistics within a game. These might include betting on how many yards a particular player will throw, whether a certain player will score in the first half, or what color Gatorade will be poured on the winning coach. Prop bets can have widely varying odds depending on the likelihood of the outcome.
Live betting, also called in-game betting, allows you to place bets while a game is actively happening. The odds change in real-time based on what's occurring in the game. This creates opportunities to bet on events as they unfold, rather than before the game starts.
Practical Takeaway: Start by understanding moneyline bets (picking a winner) and spread bets (betting on margin of victory) as these are the foundation of sports betting. Once you're comfortable with these, you can explore over/unders, props, and parlays. Each bet type has different risk and reward profiles, so choose based on what you're trying to accomplish.
How to Read Odds and Calculate Potential Payouts
Reading odds correctly is one of the most important skills for anyone using a sportsbook. Odds are the numerical representation of probability, and they also tell you exactly how much you'll win or need to bet. FanDuel displays odds in American format, which uses plus (+) and minus (-) signs. Understanding this system is essential to making informed decisions about your bets.
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In American odds, a minus sign (-) indicates the favorite. The number after the minus tells you how much you need to bet to win $100. For example, -150 odds mean you must bet $150 to win $100 (for a total return of $250). A plus sign (+) indicates the underdog, and the number tells you how much you'd win on a $100 bet. For instance, +250 odds mean a $100 bet would win you $250 (for a total return of $350).
To calculate a payout on any bet, you need to know your wager amount and the odds. For favorite bets (negative odds), use this formula: (100 ÷ odds number) × your bet = profit. Then add your original bet to get total return. For example, with -200 odds and a $100 bet: (100 ÷ 200) × $100 = $50 profit, plus your $100 bet = $150 total return.
For underdog bets (positive odds), use this formula: (odds number ÷ 100) × your bet = profit. Again, add your original bet for total return. For example, with +200 odds and a $100 bet: (200 ÷ 100) × $100 = $200 profit, plus your $100 bet = $300 total return.
Here's a practical example using real NFL numbers from a recent season. Suppose the Buffalo Bills are playing the Miami Dolphins. The Bills might be listed at -190 odds to win, while the Dolphins are at +160. A $100 bet on the Bills (the favorite) would return approximately $152.63 if they win. That same $100 on the Dolphins would return $260 if they win. You can see how favorites have lower payouts but are considered more likely to win, while underdogs pay more but are considered less likely to win.
Spread bets are slightly different because you're betting against a point spread rather than just picking a winner. However, the payout calculation is the same once you understand the spread. If the spread is -5.5 and you bet on the favorite to cover at -110 odds, you need them to win by 6 or more points. The -110 odds work the same way as a moneyline bet: you need to bet $110 to win $100.
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