Compare and Find The Best Odds
Understanding odds is the single most important skill you can develop as a sports bettor. Everything else, from reading a point spread to calculating a parlay payout to deciding whether a bet is worth taking, flows from your ability to read and interpret odds.
Yet, I know a lot of bettors spend years placing bets without ever fully understanding what the numbers in front of them actually mean.
This guide covers how odds work, how to calculate your payouts, how to convert odds into probability, how to track line movement, and how to compare odds across sportsbooks to find the best price available on every bet you place.
Today’s Odds
When betting, it is important to understand that odds shift constantly and vary between betting sites and apps. The lines below are updated in real time where we recommend to compare them before placing any bet to make sure you’re getting the best available odds.
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We’re covering every major betting market for the world cup, this includes outright winner, group winners, Golden Boot, match betting and more, all with odds updated in real time across the top US sportsbooks.
Top betting sites for odds
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Sports betting is legal in more than 30 states, and the major licensed sportsbooks each have distinct strengths. The right choice depends on your state, your preferred sports, and how you like to bet. Beneath you can read a brief comment about some of the most popular betting sites in the US.
DraftKings is one of the two dominant books in the US market, available in more than 20 states. It offers deep markets across all major sports, a well-designed mobile app, and one of the strongest props menus in the industry. It is consistently competitive on game lines and runs frequent promotions for both new and existing customers.
FanDuel is the other half of the US duopoly. It is frequently credited with the cleanest and most intuitive app interface of any major US book and is known for competitive moneyline markets and same-game parlays. It regularly runs odds boosts on major events and is a go-to for bettors who prioritize ease of use.
BetMGM is backed by MGM Resorts and operates across more than 20 states. It is known for strong futures odds, generous welcome bonuses, and a well-developed casino product alongside the sportsbook. BetMGM often posts slightly different lines than the other major books, making it a useful addition to any line shopping rotation.
Caesars Sportsbook is operated by one of the largest land-based casino companies in the country. It is known for generous loyalty rewards and frequently offers reduced juice on select markets. Caesars tends to be particularly competitive on football lines.
ESPN Bet launched in 2023 in partnership with PENN Entertainment and the ESPN brand. It is integrated with ESPN’s broader media ecosystem and has attracted significant interest from the existing ESPN audience. It is still building market depth but is worth having in your rotation for its promotional offers and frequent odds boosts.
Fanatics Sportsbook entered the market leveraging its massive existing customer base from sports merchandise. It is growing its state presence rapidly and offers a rewards program that ties betting activity to merchandise credits, which is a unique angle in the market.
What Odds Actually Tell You
Odds are built around a baseline of $100. Every number you see is doing one of two things, either they tell you how much you need to bet to win $100, or tell you how much a $100 bet would win you. The plus or minus sign is the first thing to look at, because it instantly tells you whether you’re looking at a favorite or an underdog.
Minus (-) means favorite
The number tells you how much you must wager to win $100 in profit. At -150, you bet $150 to win $100. At -300, you bet $300 to win $100. The bigger the negative number, the stronger the favorite, and the less you win relative to what you risked.
Plus (+) means underdog
The number tells you how much profit a $100 bet returns. At +130, a $100 bet wins you $130. At +300, a $100 bet wins you $300. The bigger the positive number, the longer the odds and the bigger the potential return.
You don’t have to bet exactly $100. The math scales proportionally. Most sportsbook apps calculate your exact payout automatically the moment you enter your stake.
The Math Behind the Odds
Understanding how to calculate a payout from any set of odds is one of the most practical skills in sports betting. Most apps do the math for you, but knowing it yourself means you can quickly evaluate any bet before committing.
Calculating profit on negative odds, you divide 100 by the absolute value of the odds.
At -150: 100 / 150 = $0.67 per dollar risked, so a $100 bet profits $66.67. At -300: 100 / 300 = $0.33 per dollar risked, so a $100 bet profits $33.33.
For calculating profit on positive odds, simply divide the odds by 100.
At +150: 150 / 100 = $1.50 per dollar bet, so a $100 bet profits $150. At +300: 300 / 100 = $3.00 per dollar bet, so a $100 bet profits $300.
The -110 baseline
If you bet on point spreads or totals, you will see -110 constantly. It is the standard price on both sides of almost every spread market in the US. At -110, a $100 bet profits $91.
That $9 gap is the sportsbook’s built-in margin. It means you need to win more than 50% of your bets just to break even. The exact break-even win rate at -110 is 52.38%.
Turning Odds Into Percentages
Every set of odds contains a built-in probability estimate. Converting odds to implied probability tells you what the sportsbook thinks the chances are of a given outcome.
More importantly, it gives you a benchmark to compare against your own assessment. If you think a team has a 55% chance of winning and the odds imply only 45%, you may have found a bet worth taking. If the implied probability is higher than your own estimate, the bet is likely not worth the risk.
Converting negative odds
Divide the absolute value of the odds by the sum of the absolute value and 100, then multiply by 100.
-150: 150 / (150 + 100) x 100 = 60%. -300: 300 / (300 + 100) x 100 = 75%.
Converting positive odds
Divide 100 by the sum of the odds and 100, then multiply by 100.
+150: 100 / (150 + 100) x 100 = 40%. +300: 100 / (300 + 100) x 100 = 25%.
Implied probability reference table
| Odds | $100 bet profit | Implied probability | Plain English |
| -500 | $20 | 83.3% | Wins 5 out of 6 |
| -300 | $33 | 75.0% | Wins 3 out of 4 |
| -200 | $50 | 66.7% | Wins 2 out of 3 |
| -150 | $67 | 60.0% | Wins 3 out of 5 |
| -110 | $91 | 52.4% | Slight lean |
| +100 | $100 | 50.0% | Coin flip |
| +150 | $150 | 40.0% | Wins 2 out of 5 |
| +200 | $200 | 33.3% | Wins 1 out of 3 |
| +300 | $300 | 25.0% | Wins 1 out of 4 |
| +500 | $500 | 16.7% | Wins 1 out of 6 |
The Sportsbook’s Built-In Edge (The Vig)
Sportsbooks do not set odds as a neutral reflection of true probability. They build a margin into every market, and that margin always favors the house. If you add up the implied probabilities on both sides of any bet, the total exceeds 100%.
That excess is the vig, also called the juice or the overround.
It is the sportsbook’s guaranteed cut, baked into the price before a single bet is placed.
On a standard -110 spread, both sides carry 52.4% implied probability. Combined, that is 104.8%. The sportsbook has locked in a 4.8% edge regardless of who wins.
| Market type | Typical odds | Combined implied prob. | Book’s edge | Break-even win rate |
| Standard spread | -110 / -110 | 104.8% | 4.8% | 52.4% |
| Reduced juice spread | -105 / -105 | 102.4% | 2.4% | 51.2% |
| Competitive moneyline | -150 / +130 | 103.7% | 3.7% | Varies |
| Player props | -115 / -115 | 107.0% | 7.0% | 53.5% |
| Parlays | Varies | Varies | 10% to 20%+ | Varies |
| Futures | Varies | 115% to 130% | 15% to 30% | Varies |
To be profitable long term, you need to consistently identify bets where the true probability of an outcome is higher than what the odds imply. That gap is your edge.
Line Movement – Why Odds Change
One of the most overlooked skills in sports betting is understanding why odds move between the time they open and the time a game starts, that odds are not static.
They shift constantly in response to betting volume, new information, and the behavior of other bettors. Paying attention to line movement is one of the most reliable ways to understand what the market actually believes about a game.
What causes lines to move
Betting volume is the primary driver. When more money comes in on one side of a market than the other, sportsbooks adjust the odds to rebalance their exposure. If the public hammers one side, the book moves the line to attract action on the other side.
Injuries and roster news are the second major factor. A starting quarterback going down the day before a game can move a spread by several points within minutes of the news breaking. Sharp money also moves lines. Professional bettors whose action sportsbooks take seriously can shift a line even when overall volume is not heavily one-sided.
How to read line movement
| Scenario | What it likely signals |
| Line moves toward favorite with heavy public money on favorite | Public betting driving the move |
| Line moves toward underdog despite public money on favorite | Sharp money on the underdog; reverse line movement |
| Line moves sharply with no obvious injury news | Coordinated sharp action |
| Line returns to its opening number after moving | Two-way action that balanced out |
| Line moves immediately after a roster update | Book repricing for new information |
Opening lines vs. closing lines
The opening line is the first set of odds posted when a market goes live, usually days before the game. It represents the oddsmakers’ best early estimate. The closing line is the final price when betting closes just before the game starts. It reflects everything the market has processed: all bets placed, all news that came out, and all adjustments made in response.
Research consistently shows that closing lines are more accurate predictors of outcomes than opening lines because they incorporate more information. One of the most widely used benchmarks for evaluating betting skill is closing line value, or CLV. If you consistently get better odds than the closing line on the same bets, it is a strong signal that you are finding value.
The Main Bet Types
Sportsbooks offer a wide range of bet types across every major sport. The odds format stays the same throughout, but how those odds are generated and what they reflect differs depending on the type of bet.
Moneyline bets
A moneyline is the simplest bet available. You pick who wins, with no spread involved. Odds reflect the full quality gap between the two sides.
| Matchup type | Favorite odds | Underdog odds | $100 favorite profit | $100 underdog profit |
| Toss-up | -115 | -105 | $87 | $95 |
| Moderate favorite | -180 | +150 | $56 | $150 |
| Clear favorite | -280 | +230 | $36 | $230 |
| Heavy favorite | -450 | +350 | $22 | $350 |
Point spread bets
The spread levels the playing field by requiring the favorite to win by a specific margin. Both sides are almost always -110.
| Favorite spread | What it means | For the bet to win |
| -3.5 | Favored by 3.5 | Must win by 4 or more |
| -7 | Favored by 7 | Must win by 8 or more |
| -10.5 | Favored by 10.5 | Must win by 11 or more |
| -14 | Favored by 14 | Must win by 15 or more |
Totals (over/under)
A bet on whether the combined score finishes above or below a number set by the sportsbook. Who wins is irrelevant. Both sides are almost always -110.
| Sport | Typical total range | Example |
| Football | 38 to 58 | 47.5 points |
| Basketball | 210 to 240 | 224.5 points |
| Baseball | 7 to 11 | 8.5 runs |
| Hockey | 5 to 7 | 5.5 goals |
Player props
Bets on individual statistical outcomes within a game. Props typically carry higher vig than spread and moneyline markets, often -115 or wider on both sides, raising the break-even win rate to 53.5% or more.
Some books have much softer prop lines than their game markets, which can create occasional value for bettors who do their homework.
Parlays
A parlay combines two or more individual bets into one wager. All legs must win for the parlay to pay out.
| Legs | All at -110 | Approximate payout | $100 bet profit |
| 2-team | -110 / -110 | +260 | $260 |
| 3-team | All -110 | +600 | $600 |
| 4-team | All -110 | +1100 | $1100 |
| 5-team | All -110 | +2000 | $2000 |
| 6-team | All -110 | +4000 | $4000 |
Futures
Futures are bets on outcomes decided at the end of a season or tournament. The potential returns are large, but the vig is the highest of any standard bet type, often 15% to 30% or more built into the market.
| Futures odds | $100 bet profit | Implied probability | What it typically reflects |
| +350 to +500 | $350 to $500 | 16.7% to 22.2% | Perceived frontrunner |
| +600 to +900 | $600 to $900 | 10.0% to 14.3% | Strong contender |
| +1000 to +1500 | $1000 to $1500 | 6.3% to 9.1% | Dark horse |
| +2000 to +4000 | $2000 to $4000 | 2.4% to 4.8% | Long shot |
| +5000 or more | $5000+ | 2.0% or less | Near impossible |
Comparing Odds Across Sportsbooks
The single most effective habit any bettor can develop is comparing odds across multiple sportsbooks before placing every bet.
This is called line shopping, and it costs nothing beyond a few extra minutes per wager. Over a full season, consistently getting the best available price makes a meaningful difference to your results.
How odds comparison works in practice
Every major sportsbook sets its own lines. While the numbers are often similar, they are rarely identical across all books at the same time. Here is an example of what a typical odds comparison looks like across five major US sportsbooks on the same game:
| Sportsbook | Favorite spread | Underdog spread | Favorite ML | Underdog ML |
| DraftKings | -3 (-110) | +3 (-110) | -158 | +132 |
| FanDuel | -3 (-108) | +3 (-112) | -155 | +130 |
| BetMGM | -2.5 (-115) | +2.5 (-105) | -160 | +135 |
| Caesars | -3 (-110) | +3.5 (-118) | -162 | +136 |
| ESPN Bet | -3 (-110) | +3 (-110) | -156 | +130 |
If you want to bet the underdog spread, Caesars is offering +3.5, a full half point better than every other book. On a key number like 3 in football, that extra half point can be the difference between winning and losing.
If you want to bet the favorite moneyline, FanDuel at -155 saves real money compared to Caesars at -162. These differences exist in virtually every game, every week.
Key numbers and why half points matter
In football, certain margins of victory occur far more often than others due to the scoring structure of the game. These are called key numbers, and they are central to the value of getting the best spread available.
| Key number | Why it matters |
| 3 | Most common NFL margin; a field goal difference |
| 7 | Second most common; a touchdown plus extra point |
| 10 | A field goal plus a touchdown |
| 6 | Two field goals or a touchdown without extra point |
| 14 | Two touchdowns |
Getting +3.5 instead of +3 means your bet wins every time the game is decided by a field goal rather than pushing. Getting -2.5 instead of -3 means the favorite only needs to win by 3 rather than 4. The closer a spread sits to a key number, the more valuable that half point becomes.
Tools for comparing odds
Several dedicated odds comparison platforms aggregate real-time lines from multiple sportsbooks in one place, making line shopping significantly faster.
These tools typically display the spread, moneyline, and total for every game side by side across multiple books, with the best available price highlighted.
| Tool feature | Why it matters |
| Real-time odds from multiple books | Find the best price without logging into each app separately |
| Line movement history | See where the line opened and how it has moved |
| Consensus betting percentages | Understand public vs. sharp money distribution |
| Best odds highlighted | Instantly spot which book has the best number |
| Injury and news alerts | React to line-moving information faster |
Using Historical ATS Data and Trends
One of the most underrated resources available to bettors is historical against-the-spread data. A team’s straight-up record tells you how often they win. Their ATS record tells you how often they cover the spread, which is what actually matters when you have money on the line.
What ATS records tell you
A team can have a dominant straight-up record and a poor ATS record if oddsmakers consistently price them too high. Conversely, a losing team with a strong ATS record might be chronically undervalued by the market.
| Record type | What it measures | Why it matters for betting |
| Straight-up (SU) | Wins and losses | Team quality, not betting value |
| Against-the-spread (ATS) | Covers and non-covers | Actual betting performance |
| Over/under (O/U) | Overs and unders hit | Scoring trends relative to set totals |
| Home ATS | Covers at home | Home field pricing accuracy |
| Away ATS | Covers on the road | Road performance vs. market expectation |
| ATS after a loss | Bounce-back tendency | Situational betting angle |
| ATS as a favorite | Covering when favored | Whether favorites are priced accurately |
| ATS as an underdog | Covering when getting points | Whether underdogs are priced accurately |
Situational trends and angles
Sharp bettors and betting research sites track dozens of situational trends that can inform betting decisions. These include how teams perform after a bye week, on short rest, after a blowout win or loss, in divisional games, or in cold weather.
No single trend is predictive on its own, but they can serve as useful filters when evaluating a bet alongside the odds available and your own read on the matchup.
Positive Expected Value
All of the concepts covered in this guide, implied probability, the vig, line movement, ATS records, and line shopping, exist in service of a single goal, to find bets where the odds undervalue the true probability of an outcome.
This is called positive expected value betting, or positive EV, and it is the foundation of every serious long-term betting approach.
How positive EV works
If you believe a team has a 55% chance of winning and the odds imply only a 45% chance, you have identified a gap between market perception and reality. Betting into that gap consistently over a large sample produces profit, even accounting for the vig.
| Your estimated probability | Odds available | Implied probability | Value assessment |
| 55% | +100 | 50.0% | Positive EV, 5% edge |
| 55% | -120 | 54.5% | Marginal, very small edge |
| 55% | -130 | 56.5% | Negative EV, do not bet |
| 40% | +150 | 40.0% | Break even, no edge |
| 40% | +165 | 37.7% | Positive EV, 2.3% edge |
| 40% | +130 | 43.5% | Negative EV, do not bet |
Where edges are most likely to be found
Sportsbooks invest heavily in sharpening their NFL and NBA game lines, which means edges in those markets are harder to find and smaller when they exist.
Less heavily traded markets tend to have softer lines that are not as efficiently priced.
| Market | Line sharpness | Where edges are more likely |
| NFL spreads and totals | Very high | Early in the week before sharp action |
| NBA game lines | High | In-season with injury news |
| MLB moneylines | High | Pitching-specific situations |
| NHL moneylines | Moderate | Less efficient than football and basketball |
| College football | Moderate | Non-conference and smaller programs |
| Player props | Lower | Books spend less time sharpening these |
| Early season futures | Lowest | Market uncertainty is highest at open |
What to Look for When Choosing a Sportsbook
This is the first and most important filter. A sportsbook must be licensed and regulated in your state. Never use an unlicensed offshore book. They are not regulated, your funds are not protected, and you have no legal recourse if something goes wrong.
Odds quality and line competitiveness
I really want to emphasize the difference between -110 and -115 on the same bet, repeated across hundreds of wagers over a full season, adds up to a significant amount of money. Before settling on a primary book, compare their standard juice against competitors.
To me its clear and I tope its getting clear for you as well. That Books that offer -105 instead of -110 on spreads, known as reduced juice books, give you a meaningful long-term advantage.
| Odds comparison | Standard juice | Reduced juice | Break-even win rate difference |
| -110 vs -105 | 52.4% | 51.2% | 1.2 percentage points |
| -110 vs -108 | 52.4% | 51.9% | 0.5 percentage points |
| -115 vs -110 | 53.5% | 52.4% | 1.1 percentage points |
Welcome bonuses and ongoing promotions
Every major US betting site offers a welcome bonus for new customers. Always read the terms carefully before claiming any offer.
| Bonus type | What it means | Key things to check |
| Deposit match | Book matches your deposit in bonus credit | Rollover requirement, odds minimums |
| First bet insurance | First bet refunded if it loses | Refund is usually bonus credit, not cash |
| Bet and get | Place a qualifying bet, receive bonus credit | Expiration date, withdrawal restrictions |
| Odds boost | Specific bet at enhanced odds | Usually capped at a small stake |
| Parlay insurance | Parlay refunded if one leg loses | Usually applies to last leg only |
| Loyalty rewards | Points earned on every bet | Redemption rates vary significantly |
The rollover, sometimes called wager requirement, is the most important term to check. A $500 bonus with a 10x rollover requires $5,000 in total wagers before any withdrawal is permitted.
Market depth and props coverage
If you bet primarily on major professional game lines, almost every major book will serve you well. If you want a deep props menu, coverage of college sports, or niche markets like combat sports and golf, the quality of the offering varies significantly between books.
App quality and withdrawal speed
Most bettors place the majority of their wagers on mobile. A slow or unreliable app is a real problem when you’re trying to beat a moving line. Evaluate how quickly odds update, how smoothly live betting works, and how fast the bet slip confirms your wager.
On the withdrawal side, PayPal and Play+ prepaid cards are the fastest options at most books, typically processing within 24 to 48 hours. ACH bank transfers and debit cards can take three to five business days.
The Case for Using Multiple Sportsbooks
Maintaining active accounts at three to five sportsbooks and comparing odds before every bet is the single most effective structural habit a bettor can build.
The bettor who always takes the best available price has a consistent edge over one who settles for whatever their default app shows, without needing to be a better handicapper at all.
Getting one half point better on a key number, saving a few cents of juice on a moneyline, and occasionally finding a line that has not moved on one book when it has already moved on others, none of these advantages require skill. They just require the discipline to check before you click.
Common Mistakes When Reading Odds and Choosing Where to Bet
Using only one sportsbook
Different books post different odds on the same game. The bettor who always takes the best available price has a structural advantage that compounds over time.
Chasing welcome bonuses without reading the terms.
A large deposit match sounds attractive until you discover it requires a 10x rollover before you can withdraw anything. Always read the conditions attached to any bonus before claiming it.
Betting on unlicensed offshore books
Offshore books frequently advertise attractive odds to draw US customers. They are not licensed, not regulated, and have no legal obligation to pay you.
Ignoring the juice on every bet
Betting -110 across the board requires winning 52.4% of your bets just to stay even. Many bettors who think they are roughly breaking even are actually slowly losing money to the vig over time.
Confusing the minus sign with bad value
A -200 favorite is not automatically a poor bet. If that side genuinely wins 70% of the time, -200 represents positive expected value. The sign tells you who the favorite is, not whether the bet is worth placing.
Treating parlays as a primary strategy
The vig compounds with every leg. A five-team parlay is working against enormous mathematical headwinds before you even factor in your ability to pick winners.
Betting futures without accounting for the total vig in the market
The combined implied probabilities in most futures markets add up to 125% or more. That overround is the highest of any standard bet type and makes futures a poor value proposition for most bettors as a systematic strategy.
Key Terms Glossary for Odds
Odds are the numbers displayed on every sportsbook market. Negative numbers show how much you must bet to win $100. Positive numbers show how much a $100 bet profits.
Favorite is the side expected to win, shown with a minus sign. The larger the negative number, the stronger the favorite.
Underdog is the side expected to lose, shown with a plus sign. The larger the positive number, the bigger the underdog and the greater the potential return.
Even money is a bet where your profit equals your stake, expressed as +100.
Juice (vig) is the sportsbook’s built-in commission on every bet. It is why -110 on both sides of a spread adds up to more than 100% implied probability.
Implied probability is the likelihood of an outcome as expressed by the odds. If your own estimate is higher than the implied probability, the bet may have positive expected value.
Moneyline is a straight bet on who wins with no spread involved.
Point spread is the margin set by the sportsbook to level the playing field between two unevenly matched teams. Both sides are typically priced at -110.
Total (over/under) is a bet on whether the combined score of both teams finishes above or below a number set by the sportsbook.
Player prop is a bet on an individual statistical outcome within a game. Props typically carry higher vig than game markets.
Parlay is a single bet combining two or more picks. All legs must win for the parlay to pay out. The vig compounds with every leg added.
Futures are bets on outcomes decided at the end of a season or tournament. They carry the highest vig of any standard bet type.
Line movement is when odds shift between opening and closing in response to betting volume, injuries, or other information.
Closing line value (CLV) measures whether the odds you bet at were better than the final odds when the event started. Consistently beating the closing line is one of the strongest indicators of long-term betting skill.
Against the spread (ATS) is a record that tracks how often a team covers the spread rather than simply how often they win.
Consensus betting percentages show the distribution of bets and money across the two sides of a market. Useful for identifying public-heavy games and potential sharp money signals.
Reverse line movement occurs when odds move opposite to the direction of public betting, usually signaling that sharp or professional money is on the other side.
Positive expected value (EV) describes a bet where the true probability of the outcome is higher than what the odds imply. Betting consistently with positive EV is the foundation of long-term profitability.
Line shopping is comparing odds across multiple sportsbooks to find the best available price. It is one of the most effective ways to improve long-term results without improving your handicapping.
Reduced juice refers to spreads priced below the standard -110, most commonly at -105. It lowers the break-even win rate and improves long-term profitability.
Rollover requirement is the number of times you must bet through a bonus amount before withdrawing it. A $200 bonus with a 10x rollover requires $2,000 in total wagers before withdrawal is permitted.
Key numbers are the margins of victory that occur most frequently in a given sport due to its scoring structure. In football, 3 and 7 are the most important key numbers and have the greatest impact on spread betting value.
Steam move is a sudden, sharp line movement caused by coordinated professional bets hitting multiple sportsbooks simultaneously.
Push happens when the result lands exactly on the spread or total number. All stakes are refunded and no money changes hands.
Dan Anderson
Senior Sports Betting Analyst-110 versus -115 means nothing on a single bet but cross hundreds of bets over a full season it means a lot. That gap compounds silently, never showing up as one dramatic loss but absolutely showing up at the end of the year when your record looks fine and your bankroll doesn’t.