Best March Madness Betting Sites and Sportsbook Apps in 2025

The best March Madness betting sites allow you to place a variety of bets on the biggest college basketball event in the US. We have selected 10 top-quality platforms below that allow you to place all kinds of bets on each game of the tournament.

Additionally, these offshore betting sites also come with the best March Madness promos, a host of live markets to choose from, and some even allow you to live stream the games. So, let’s learn all you need on the best March Madness platforms.

Top 10 March Madness Betting Sites

We’ve spent many hours trying to find the best March Madness online sportsbooks for you to use. After finishing our reviews, the following are the top sites we think have the best NCAAB betting options.

1. BetOnline – The No.1 best site overall for March Madness betting
2. BetUS – Take part in the $1 million perfect bracket contest
3. BetWhale – Access a wide range of basketball live betting markets
4. Bovada – Boost your basketball parlay odds
5. BetNow – Get cash back on your failed March Madness bets
6. CoinCasino – Make use of detailed pregame stats, available for all games
7. Everygame – Offers competitive futures markets
8. MyBookie – Superb market variety for March Madness games
9. SportsBetting.ag – Create unique March Madness same game parlays
10. XBet – Cash in on betting odds boosters every day

Reviews of the Best March Madness Betting Sites

There is more to these sites than just being able to place a few bets on March Madness. As such, let’s run through reviews from experts to see exactly what the top five March Madness betting sites offer.

1. BetOnline (9.8/10) – The No.1 Best Site Overall for March Madness Betting

BetOnline stokes the fire of excitement for March Madness by giving you a generous free bets bonus upon signing up. On top of that, they have a buzzer beater promo where if your moneyline bet loses because the team you bet on lost by 1 point, your bet is refunded up to $50. They are also running a $200,000 bracket prediction contest for the tournament, with first place taking home $50,000.

Those are just the March Madness betting promos you can claim; there are plenty of other great features. First off, you’ll be able to place bets on a ton of markets, from spreads and totals (over/under) to betting on match MVPs, the first team to score, and so much more. You can place pre-match bets and also place wagers on your bet slip for games that are still live as well.

You can also rely on the News Room section of their site to find useful match predictions, tips, and expert sports betting advice. Finally, you can also live stream most of the games through the platform, so you don’t miss a beat.

2. BetUS (9.7/10) – Take Part in the $1 Million Perfect Bracket Contest

BetUS has a couple of March Madness sportsbook promotions you can cash in on when you sign up and place an initial wager, including separate crypto and fiat deposit bonuses. They also have a reload bonus or two as well for when you want to make your next deposit.

However, their March Madness contests are where the action is. You can enter the full bracket prediction, and if you go perfect, you could win $1 million. Additionally, if you missed the deadline, you could still make predictions for the last 16 and final eight teams, each with $10,000 prizes for the first-place finish.

You may not be able to live stream events on the site like other March Madness betting sites we have seen, but you can use a top live betting feature. Furthermore, they have a dedicated college basketball show in their BetUS TV feature where you can learn more about the teams and how you should be betting.

3. BetWhale (9.6/10)- Access a Wide Range of Basketball Live Betting Markets

At BetWhale, you can find a wide variety of betting options at your disposal. The sportsbook provides a wide range of betting markets, covering everything from game outcomes to player props. BetWhale is known for offering a variety of promotions during March Madness, including deposit match bonuses, free bets, and enhanced odds on select games. The bookmaker prefers to keep members updated with the latest promotional offers via email, so March Madness offers are not readily available on their website.

To receive your exclusive, tailored March Madness offers, first, you need to complete the sign-up process, which takes only a couple of minutes at most. From there, you can make your first deposit by choosing from many reliable methods like Visa, Mastercard, PayPal, Bitcoin, etc. In addition, don’t forget to use the WHALECOME promo code to activate the $1,250 sportsbook welcome offer.

Once the bonus and your deposit settle in your account, you can then take a stab at the sportsbook. In fact, BetWhale’s betting interface is super easy to navigate, offering a crisp layout, an easy-to-use menu tab, and a search bar that helps you find specific teams, players, or tournaments. That means you can easily pick out the upcoming games involving all the big teams from the Lone Star State, like the Cowboys, Houston Texans, the Rockets, the Mavericks, etc.

BetWhale also offers live betting where you can place bets even as the game is going on. BetWhale live betting offers you plenty of live markets to work with. In fact, we checked out a game involving the Cowboys and found 40+ markets even after the game began.

4. Bovada (9.5/10) – Boost Your March Madness Parlay Odds

Much like we saw with BetUS, Bovada gives you a crypto bonus and a fiat bonus to choose from when you sign up. When you’ve cashed in on that, you can earn more rewards through their loyalty program. The recurring theme here with the top March Madness sportsbooks is the contests they run, and Bovada does the same. Their March Madness contest has a $50,000 prize pool, with the best performer taking home $25,000.

Bovada also has a top parlay booster promo that you can use when crafting your multi-leg bets for March Madness. From betting on Duke to beat Purdue by more than 7 points to betting on the MVP of the tournament, you’ve got plenty of options to work with at Bovada. From what we can tell, they also release detailed articles regularly as the tournament progresses, giving you up-to-date news on injuries and roster changes.

5. BetNow (9.6/10) – Get Cash Back On Your Failed March Madness Bets

BetNow is one of those betting sites that offer rewarding promos for existing sports bettors. Their welcome offer isn’t going to blow anyone away, but they do have a superb 2% rebate promotion on your net sports betting losses that payout at the end of every week. They also have a $1 million prize pool for March Madness bracket betting that you can take part in as well. The winner takes home $350,000.

Something we liked about the sports betting options for the March Madness tournament was the competitive odds on moneyline and spreads and the range of prop markets. We could also use a prop builder feature, which allowed us to create prop bets on NCAAB games. They also have their own blog page where you can find predictions, expert analysis, and news covering the entire tournament.

Best March Madness Betting Promos

Now, the following table will help ensure that you don’t miss out on any of the welcome bonuses on the best March Madness betting websites. So, check out the table below for an overview of their welcome promos.

Types of Bonuses Available for Betting on March Madness

You’ve seen the exciting welcome offers available at the best March Madness betting sites, but there are also plenty of other promotions on these sites. Let’s take a look at a few examples of these promos.

Welcome Bonus

The most common offer you can find with the best March Madness betting sites is a welcome bonus. These welcome bonuses are, more often than not, a matched deposit offer like the one at BetWhale, where you can claim a 125% deposit match of up to $1,250 welcome bonus.

Odds Boosts

Odds boosters are super useful for March Madness betting. They turn an average set of odds into far more attractive prospects. You can find daily odds boosters and even boosted March Madness odds with most sites in our top 10.

No Sweat Bets

No-sweat bets are often called risk-free bets on offshore betting sites. Either way, the premise is the same, if you make a qualifying wager and it loses, the online sportsbook will refund your bet with a free bet up to a fixed amount. You can find two such offers at BetOnline, both of which will refund your lost bet up to $50.

Reload Bonus

A reload bonus can come in a few different ways, but you can expect them to be matched deposit offers usually. The difference here is that these offers are available to all existing March Madness bettors, not just new signups. MyBookie is running such a reload bonus, giving a 35% deposit match up to $875.

Bet Insurance

Bet insurance offers will return your stake if your bet loses but under certain conditions. For example, you can find a bet insurance promo at BetOnline for March Madness. If the moneyline bet you place on a team loses, and they only lose by 1 point, you will be refunded up to $50.

Quick Facts: March Madness Betting

To make sure that you know when the games are happening and more, we bring you a detailed table of all the quick facts on March Madness and betting on March Madness.

What Makes a Great March Madness Betting Site?

There are certain factors that set the high-quality March Madness betting sites apart from the mediocre sites. The following are the areas where sportsbooks have to excel for us to consider them for our March Madness betting guide:

1. Safety & Security: We always review the security features they offer, from the SSL encryption software they use to whether they let you use two-factor authentication. These sites get bonus points for being a reliable no verification betting site.
2. Deposit & Payout Methods: The best sites are the ones that let you make deposits with a host of different methods. Cryptos like BTC and LTC should always be available alongside traditional methods like credit cards and bank transfers. They should also pay out in a reasonable amount of time as well.
3. Bonuses & Promotions: We expect to see multiple welcome offers, promotions, and a solid VIP program on these sites. The offers should be generous and have fair T&Cs.
4. Range of Sports: All sportsbooks have to cover a decent range of sporting events for you to bet, which, of course, have to include all March Madness games as well.
5. Depth of Markets: What sets the best sites apart is their range of markets. Top sites give you hundreds of markets to choose from, which usually include a ton of diverse prop bets, too.
6. Quality of Sports Betting Odds: The best sites not only have March Madness odds, but they also ensure they release sports betting lines nice and early so you can view those competitive odds before they shift.
7. Mobile Interface: The top sportsbooks will have well-optimized mobile betting sites that can run smoothly on iOS and Android browsers.
8. Customer Service: The March Madness betting sites in our guide always ensure 24/7 customer support. You can also easily reach them through live chat and email, and they also respond promptly on most occasions.

How March Madness Betting Works

Before you can put together a March Madness betting strategy you need to have an understanding of the various betting types and markets that you can use. Let’s run through the options that you will have available with the sites in our guide.

Point Spread Bets

Here, you are betting on the margin of victory. For example, if Duke is favored by 5.5 points against UNC, Duke must win by at least 6 points for a bet on them to be successful.

Moneyline Bets

This bet involves picking the outright winner in a game. For instance, if Kansas has -150 odds against Kentucky (+130), a $150 bet on Kansas would net you a $100 profit if they win, while a $100 bet on Kentucky would get you a profit of $130.

Over/Under (Totals) Bets

Betting on the combined total points scored by both teams. If the over/under is set at 140.5 points, you choose whether the actual total will be over or under this number with your bet.

Futures Bets

These involve predicting long-term outcomes, like which team will win the championship. Placing a bet on Gonzaga to win the March Madness tournament before it starts is an example of a futures bet.

Prop Bets

March Madness prop bets are all about events that happen within the game, not the actual result of the game. For example, betting on a player to score a certain number of points or predicting which team will reach 20 points first.

March Madness Live Betting

Also known as in-game betting, popularly at the new betting sites, March Madness live betting lets you bet during the game as it’s happening. For example, you might see the momentum shifting in favor of the underdog, which could make for a shrewd last-minute bet.

March Madness Betting Tips and Strategy

With a grasp on what kind of markets you can use, it’s a good time to get into some handy March Madness betting tips.

Research March Madness Players and Teams

Always ensure you research the teams and their players before you bet. Learning more about the offense and defense of teams can be decisive in how successful your bets are.

Analyze Seeding and Matchup Histories

Historically, certain seeds perform better than others. For example, No. 12 seeds have upset No. 5 seeds in past tournaments. Don’t put your eggs all in this basket, though, as favorites more often than not, triumph over underdogs, which is what makes March Madness underdog betting both risky but also exciting.

Consider Team Depth and Experience

Teams with experienced players often perform better under tournament pressure. Evaluating a team’s bench strength can also be crucial, as subs can make all the difference in tight games that go down to the wire.

Monitor Line Movements and Public Betting Trends

Observing how betting lines shift and where public money is going can offer valuable insights. If betting lines move significantly, it may show you that sharp money is influencing the odds.

Manage Your Bankroll Wisely

Setting a budget and sticking to it is vital. Avoid chasing losses and stop yourself from placing overly large bets on single games. Always ensure a balanced betting approach.

March Madness Betting Apps

Mobile betting apps made betting on March Madness much more convenient. Top mobile sportsbooks provide user-friendly interfaces, live streaming options, and a wide range of betting markets to do your betting with.

For instance, a few March Madness betting apps even give you high-quality live streaming for March Madness games. Features like in-app statistics, real-time notifications, and app-exclusive promos are also big draws for using these sportsbook apps.

Is Betting on March Madness Legal in the US?

Being able to bet on March Madness legally varies from state to state. Following the Supreme Court’s decision to overturn PASPA in 2018, states were given the authority to decide for themselves if they wanted to legalize sports betting. As a result, the legal landscape is quite diverse, with some states allowing fully legal online betting and others still very much against the idea.

States with Legal Online March Madness Betting

Each state determines its own laws regarding sports betting. Some have allowed both online and retail betting, while others only allow betting in person or they have yet to legalize any form of sports betting at all.

For instance, as of March 2025, states like New Jersey and Pennsylvania offer comprehensive online and retail betting options, whereas states like Texas are vehemently against it.

How to Get Started with March Madness Online Sportsbooks

Opening up an account with the top March Madness betting sites in our guide is a breeze. Here’s how you can get started.

Step 1: Register

Head to the homepage of the online betting site you want to use and look for the register button, usually in the top right-hand corner. Then, fill in your name, surname, email address, phone number, and any other info required. It should only take you a few minutes at most to open your account.

Step 2: Deposit

Most of these March Madness betting sites will then take you straight to the deposit page, where you can top up your account with cryptos like Bitcoin or fiat options like Visa, Mastercard, or bank transfers.

Step 3: Bet

Find the basketball option in the sportsbook, and in the drop-down menu, you should be able to find a tab for NCAA betting. Click on it to find all the available March Madness betting action and place a wager on the bet slip.

Step 4: Withdraw

When you’re ready for a payout, return to the cashier page and choose a method. Then, enter all the required details and complete the process to get your hands on (hopefully substantial) winnings.

March Madness Betting Sites Summary

After checking out a number of sites, we can say without a shadow of a doubt that BetOnline is the best online sportsbook for March Madness betting.

Their platform is jam-packed with great contests and promotions, unique features like BetTV and also March Madness live streaming options. More importantly, they also offer some of the most diverse range of NCAAB betting markets we have seen, plus a generous bonus bets offer. So, make sure you sign up on the site before the tournament ends!

March Madness Betting Sites FAQs