Best Sports Betting Sites 2025
Welcome to CasinoUS, your go-to platform for legal online sports betting in the United States. We connect bettors with the most trusted sportsbooks, live odds, and exclusive bonuses—all backed by transparent licensing and security protocols.
Updated: 02nd November, 2025
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Sports Betting Casinos
Why Choose CasinoUS Sportsbook?
🔒 100% Legal & Secure
CasinoUS only features sportsbooks that are licensed in regulated US states, use SSL encryption, and support geolocation verification. Bet with confidence, knowing you’re protected and compliant.
⚡ Live Odds & Real-Time Betting
Get access to live markets, real-time odds updates, and instant cash-out options. Whether it’s NFL, NBA, MLB, or UFC—we’ve got you covered with top-tier odds.
💰 Big Bonuses, Low Risk
New users can unlock exclusive sign-up promos, risk-free bets, and matched deposit bonuses. We rank and compare offers so you can maximize your betting value from Day 1.
📱 Mobile-Optimized Experience
CasinoUS is fully optimized for all devices. No app? No problem. Our responsive design ensures fast load speeds, clean navigation, and seamless betting on the go.
Legality of Sports Betting
The issue of whether sports betting is legal in the USA has been a difficult one. Thankfully, it has gotten a lot simpler in 2025. At the end of 2017, the Supreme Court heard a case from New Jersey to overturn the Professional and Amateur Sports Protection Act of 1992, commonly known as PASPA. This piece of federal legislation prevented states from legalizing sports betting, even if the state wished to do so.
While PASPA didn’t make it illegal for citizens to place wagers on off-shore sports books, states were prevented from permitting them. This made things more difficult, as the off-shore betting websites couldn’t be properly regulated. Only a handful of states were exempt from PASPA, including Nevada, Delaware, and Montana, because these states already had some form of legalized sports betting by the time PASPA became law. Out of those states, only Nevada offered full sports betting to residents and visitors.
However, New Jersey was able to get the Supreme Court to hear its case and several months after the hearing, PASPA was overturned. This doesn’t mean sports betting is legal in your state, it simply means that there is no longer a federal ban and states can decide if they want to allow it.
Since PASPA was overturned, numerous states have legalized sports betting operations and numerous other states are planning to do so. It is thought that, within the next few years, the sports betting market could become the largest regulated market in the world.
How to Bet Legally Online with CasinoUS
📝 Step 1: Choose a Legal Sportsbook via CasinoUS
Use CasinoUS to compare top-rated, licensed US sportsbooks (e.g., FanDuel, BetMGM, Caesars). Look for:
- Regulatory compliance by state (NJ, PA, MI, etc.)
- Current sign-up bonuses
- Available sports markets
✅ Tip: Stick to books licensed by state gaming commissions for full payout protection and regulatory support.
🔐 Step 2: Create Your Account
Click “Join” on your chosen sportsbook. Provide:
- Full legal name
- DOB (21+ only)
- Last 4 digits of SSN (for KYC verification)
- Email & mobile number
Verify via email or SMS. Upload ID if requested.
📍 Step 3: Verify Geolocation & Legal Eligibility
Enable location services (browser or app). You must be physically located in a licensed state to place real-money bets—even if you live elsewhere.
CasinoUS only lists sportsbooks that auto-block restricted states, so no risk of illegal access.
💳 Step 4: Make Your First Deposit
Use secure payment options like:
- Debit/Credit Card
- PayPal
- Online Bank Transfer
- Play+ or Venmo (where supported)
⚠️ Most sportsbooks do not accept crypto or international cards.
🏈 Step 5: Browse Markets & Place a Bet
Explore available bets:
- Moneyline: Who wins
- Point Spread: Margin of victory
- Totals (Over/Under): Combined score
- Props/Futures: Player stats, season outcomes
- Live Betting: In-game lines
✅ CasinoUS flags sportsbooks with “Live Cash-Out” and “Early Cash-Out” features.
💵 Step 6: Claim Your Bonus
Trigger bonus by:
- Meeting minimum deposit (e.g., $10–$50)
- Placing qualifying bets (e.g., -200 odds or greater)
- Fulfilling wagering requirements (e.g., 1x–5x)
CasinoUS shows all T&Cs next to each offer.
💰 Step 7: Withdraw Your Winnings
Once bonus is cleared and bets win:
- Head to Cashier/Withdraw
- Choose method (bank transfer, PayPal, etc.)
- Processing: usually 1–3 business days
Ensure name matches ID/bank account. No payout if verification fails.
Different Types of Sports Betting
There is a wide range of different types of sports betting available for players to enjoy. People bet on almost every conceivable kind of sport, with online gambling sites offering sports betting on most sports.
FOOTBALL BETTING
Football, known as American Football to the rest of the world, is massive but not so much in the rest of the world. These Football bets can be made in any of the three big leagues, including the NFL, NCAA, and the CFL.
- Heisman Trophy: The Heisman Trophy is the most coveted award in the NCAA. Players can wager on who they think will be awarded the trophy.
- Super Bowl: This is one of the most popular football players can wager on who they think will be the Superbowl winner. Wagers made at the start of a season will often have better odds for a player.
BASKETBALL BETTING
In some promotions, free spins are not given all at once but are instead spread out over several days. For example, you might receive 10 spins per day over a week instead of 70 spins upfront. This encourages daily engagement with the casino and helps players pace their gameplay. The wagering requirements may apply separately to each day’s spins.
BASEBALL WAGERING
Baseball is America’s pastime. From minor league to major league baseball, America will always love a day out at a baseball field.
Many American gamblers wager on baseball games. There are many different ways to wager on baseball. They include:
- Winning team: A basic bet, used in every team sport in the world. A player can bet on the team they think will win, and what the home run margin between the two will be.
- Player bets: Gamblers can wager on how many home runs or strikeouts a player will have in a game or a season.
- Overs and Unders: An over/under wager is quite simple. A bookmaker will predict the total number of points a team is likely to score in a season. A player will then bet whether the true total will be over or under the bookie’s prediction.
GOLF BETTING
Specific player bets: Golf bets can include bets made on a specific player’s performance in a tournament or a season.
- Tournaments: Players can bet on who will win each golfing tournament, and how many shots they will be ahead of their closest rival. Popular tournaments to bet on include the PGA Open, the PGA and LPGA Championships, and the Ryder Cup.
- Hole-in-Ones: The elusive hole-in-one is one of golf’s most coveted undertakings. A player can bet that a golfer will hit a hole-in-one during a certain tournament.
TENNIS BETTING
Tennis bets are usually made on who will win the men’s and women’s tournaments at the big championships. Some of the biggest tournaments include the French Open, the Australian Open, and Wimbledon.
There are many, many different ways in which American players can wager on sports. Nearly all sports games can be wagered on, though not all online gambling sites offer betting on every kind of sport.
Sports Betting – American, Fractions and Decimals
In other parts of the world, the odds on any sports bet will be displayed in one of two ways, either fractions or decimals. Fractions, which are the most common, are usually displayed as something like 4/1. Decimals will be written as 5.84, for example. The more likely a team is to win, the less profit a player will make if they do.
DECIMALS
Decimals make it easier for the layman gambler to understand what their possible payout from a wager might be. So, if a player makes a $20 wager, and the odds are written in decimal as 1.29, their possible payout will be $25.8.
Decimal odds are written in a way that shows what the player will get for what they stake, eg. 29c for every $ they stake. This is why it is written as 1.29.
FRACTIONALS
A bet with the same odds as the example used above in the would-be written as 2/7. Fractionals are the more common way of writing the odds of a bet. Fractionals are written in a way that shows the profit a player will make, eg. $2 profit for every $7 they stake or simplified as $1 profit for every $3.50 they stake.
This handy table will make it much easier to understand.
| Fractional Odds | Decimal Odds Equivalent |
|---|---|
| 1/3 | 1.33 |
| 2/8 | 1.25 |
| 6/9 | 1.67 |
| 7/6 | 2.17 |
AMERICAN ODDS
However, here at home, we have our way of displaying the odds. In the USA, the odds will normally be displayed like this: -200 Team A, +300 Team B. In this case, Team A is the favorite. Essentially what these odds mean is that if you wanted to win $100 on Team A, you would need to bet $200.
However, a $100 bet on Team B would win you $300 if they win. While it might seem quite confusing, it is very simple. The negative number, the favorite, is how much you need to bet to make a $100 profit, while the positive number, for the underdog, is how much you would make if you made a $100 bet.
Other Sports Betting Guides
The History of Sports Betting
There is no point in history to pinpoint the start of sports betting. Humans have been betting on the outcome of sporting events for thousands of years. People have always loved to throw all their support behind a team and hope that it makes a difference.
Over the years, horse racing has become one of the most popular forms of sports betting. It still remains so today.
Sports betting centers have opened all across the world, allowing players to make bets at a physical location. Nowadays, most gamblers prefer to place their wagers online. Online sports betting is surging in popularity.
Sports Betting FAQs
Definitely! Players who want to place bets on sports games can do so as they normally would play mobile casino games, either via a smartphone app or via a mobile browser at certain casinos and online sportsbooks. Mobile betting has never been easier!
For sure. As long as players only wager at the licensed and regulated casinos featured on Casino US. The casinos featured on Casino US are all regulated by eCOGRA, and employ the latest and greatest encryption methods to keep players’ information safe.
Yes, most free spins come with wagering requirements. This means that any winnings from the free spins must be wagered a specific number of times before they can be withdrawn as real money. It’s essential to read the terms to understand these conditions.
It is possible to bet on nearly every conceivable popular sport in the world, especially online. However, not all casinos allow players to wager on any sport. Each casino will offer its own set of sports games for players to wager on.
Yes. Many American players use sports betting as a fun pastime that gives them the chance to boost their bank balances while playing a fun game. Players should not use sports betting as their primary source of income, nor is it meant to replace a salary. Sports betting simply allows players to have fun, while still having the chance to make some money.
No, but it helps. American gamblers need not be experts in every sport in the world, but learning some of the rules of the game, especially relating to the bet being made, will ensure that players do not bet more than they need, or make bets that they are bound to lose.
No. Each casino or sports betting site determines its own odds. Players should always look at what odds the different sports betting sites and casinos offer, and choose the one that has the best odds. No one casino has the best odds, it differs from casino to casino.
Fantasy sports betting works a lot differently from regular sports betting. Fantasy sports require that players create their teams. Players are given points according to their chosen fantasy team players’ performance in real life. At the end of a season/tournament, players win money based on their position on a leaderboard.
