If you are looking for insight into the best March Madness betting sites, you have come to the right place. The NCAA Men's Basketball Tournament is always one of the biggest sporting events of the year, attracts plenty of wagers, and has a long history filled with formal and informal betting.
You will struggle to find a top sports betting operator that doesn't have some great March Madness promotions available, but there will always be some sportsbooks that are better than others. We’ve done the work for you and have all the important information on March Madness betting sites to help you find the sites with the best bonuses and options for you.
Best March Madness Betting Sites
Since betting on March Madness is so popular, all the biggest names in the sports betting industry will get involved in some form or fashion. Here is a look at some of the top online sportsbooks that will have a March Madness promo code and bonuses available.



Caesars Sportsbook
Caesars Sportsbook will always be an intriguing option when it comes to betting online in the United States. Caesars Sportsbook tends to do things a bit differently than some other sportsbooks, but that usually means a great thing for the sports bettor.
The welcome offer from Caesars Sportsbook is a risk-free bet worth up to $1,250, and that will be an offer that lasts throughout March Madness. That is a great way to build up your bankroll before the tournament begins, and then you can use that bonus money to win big during March Madness.
Caesars 
| Bonus Offer Get Up To $1,250 in Bet Credits | Top Features A Wide Variety of Betting Options Generous Welcome Bonus Many Deposit Options | CLAIM OFFER |
Caesars Sportsbook is also backed by a company that knows a thing or two about gambling in the United States, and the loyalty rewards program will be amazing. If you are going to wager on the NCAA Tournament then signing up for a new account at Caesars Sportsbook is going to be the way to go.
One nice thing about Caesars Sportsbook is that you will also find promotions offered on some of the most unique betting options. Check out all of Caesars's daily and weekly promotions before you submit a final wager.
DraftKings Sportsbook
DraftKings Sportsbook has made a massive effort to try and become the top sports betting option in the United States, but it still has plenty of work to do. DraftKings has been able to pass FanDuel in some markets, but it hasn't emerged as the top sports betting option throughout the United States.
The one thing that DraftKings Sportsbook is known for is having some amazing bonuses and promotions, and that is how the operator stands out. You are going to see some ridiculous promotions when it comes to the NCAA Tournament, and that is going to make it a great sports betting option.
DraftKings 
| Bonus Offer $1,000 Deposit Bonus | Top Features Great Live Betting Section Same-Game Parlays User-Friendly Interface | CLAIM OFFER |
There will be plenty of other betting sites that have betting on the NCAA Tournament available, but none will do it any better than DraftKings Sportsbook. The huge welcome bonus of a 20% first deposit match is a nice bonus as well, but things are only going to get better from that point moving forward.
FanDuel Sportsbook
One of the best March Madness betting sites will always be FanDuel Sportsbook, which is the online market share leader in this industry. FanDuel Sportsbook used to be known as a daily fantasy sports provider, but it has become a sports betting leader.
You will get a massive welcome bonus from FanDuel Sportsbook as all new customers will get a risk-free bet worth up to $1,000. FanDuel Sportsbook will not only have some of the best March Madness promos, but they will also continue to reward the most loyal customers with some great offers.
FanDuel 
| Bonus Offer No Sweat First Bet up to $1,000 | Top Features Huge Betting Menu Quick Payouts Reliable Mobile App | CLAIM OFFER |
Since the NCAA Tournament is such a major sporting event, you will find that FanDuel Sportsbook has some unique wagering opportunities available. FanDuel has a promotions tab on the website or mobile app; that is where you will want to go if you want to find all of the top offers available.
FanDuel Sportsbook is known for having some risk-free parlay wagers available, and the daily odds boosts are also incredible. Be sure to check out all of the latest promotions if you are going to make a wager at FanDuel Sportsbook.
BetMGM Sportsbook
When it comes to betting on sports in the United States, BetMGM Sportsbook is always going to be a top option. This is an operator backed by MGM Resorts International, one of the biggest names in the gaming scene in the country.
Las Vegas-based sportsbooks have historically been the home of betting on March Madness when sports betting was less visible and legal. With the rise of legalized sports betting in the United States, many of the largest names in the gaming industry have maintained their positions and used their expertise in the industry, opening online sportsbooks with incredible bonuses and user-friendly interfaces.
BetMGM Sportsbook offers a risk-free bet worth up to $1,000 to all new customers at the site, and that's a great bonus to take advantage of when it comes to March Madness. That's just one of the many offers available from BetMGM Sportsbook, though, and you will find plenty of other bonuses to use on individual games, player props, and the NCAA Tournament itself.
BetMGM has a terrific loyalty rewards program available for customers, and that's a great way to rack up rewards points. Those points can then be used to wager on March Madness or some other top sporting events at that time.
Both the mobile app and online betting site from BetMGM are top of the industry and are going to provide a great opportunity to bet on the NCAA Tournament. Be sure to check out all of the latest bonuses and promotions that are offered by BetMGM so that you can get rewarded for betting on March Madness.
PointsBet Sportsbook
PointsBet Sportsbook might not have a specific March Madness promo code available, but there will be plenty of options to look at. PointsBet is a company that was founded in Australia but has had very little trouble breaking into the online sports betting industry.
PointsBet will always be one of the top March Madness betting sites because you will get two risk-free bets when you make your first wager. The first points betting wager at the operator is risk-free up to $1,500, and the first fixed odds wager at PointsBet is risk-free up to $500.
These are standard offers from PointsBet, and they will be available whether you are betting on the NCAA Tournament or not. With so many great sports betting options to choose from, it can be easy to overlook PointsBet and the betting options that it provides.
If you are looking for some of the best March Madness promos, you need to check out what PointsBet offers before committing your money and wagers to any March Madness betting sites.
How Do I Choose a March Madness Betting Site?
Choosing a March Madness betting site requires a bit of research, but if you’re willing to put in the time and effort, the rewards can be massive. The most important factor is shopping around to find the best odds, but other factors such as user interface, speed of use, and the ability to use both desktop sites and mobile apps are all things to consider.
Slight variances in odds add up over time, so you should always check carefully to see where the odds are most in your favor. Sometimes, the best option is to choose different betting sites for March Madness betting. Be ready to pounce when the odds open, as this is often the best way to capitalize on the odds.
User interface is important as well. Especially if you plan to engage in live betting, having a site that is easy to navigate, aesthetically pleasing, and runs quickly will all make your experience better. Opinions on the navigability and the look of the site will vary from user to user, so don’t be afraid to explore to find your preferences.
If you don’t want to be handcuffed to your computer and want to place a bet on the go, knowing which sportsbooks offer mobile betting in your region is an important distinction. Some operators may have a retail-only option while others may only have access through their website and not through an app.
In summary, keep the above factors in mind, and remember that no single betting site will meet every bettor’s needs. Spend some time before March Madness to test what works best for you and you’ll be ready come tournament time!
March Madness Betting Sites with the Best Promotions
March Madness offers sportsbooks tons of opportunities to promote their brand, and especially in states that have recently legalized sports betting, promotions will be abundant. However, not all promotions are created equal; what may be a generous offer to one bettor may be of little to no value to another.
Similar to choosing a sportsbook, studying which promotions sportsbooks offer will only boost your bankroll. A risk-free bet can lead to a massive payout when picking an underdog, while a deposit match can help recoup funds if a favorite bows out early.
During the 2022 Final Four, Caesars offered a risk-free bet of up to $1,100 for new users. DraftKings offered its new players $200 in bet credit on signup if the bettor placed a $5 wager on a team and that squad advanced. FanDuel offered a similar promotion with $150 in bet credits on a $5 wager, but that promo didn’t require the $5 bet to hit.
Sportsbooks constantly innovate their promotions to attract new customers and retain existing players. You can expect similar promos during March Madness 2023.
March Madness Betting Sites FAQ
Which Sportsbook offers the Best March Madness Odds?
Caesars Sportsbook, DraftKings Sportsbook, and FanDuel Sportsbook all offer excellent March Madness Odds. However, because sportsbooks set different lines and adjust based on betting action, you may need to shop around to find which odds are the most favorable to you.
Is It Legal to Bet on March Madness Online?
It may or may not be legal to bet on March Madness online in your region. Many states have already legalized and launched sports betting, but if your state has not legalized or launched, you may need to travel to place a wager.
How Much Money Do Americans Bet on March Madness?
According to estimates from the American Gaming Association, Americans bet around $3.1 Billion on March Madness in 2022.
Want To Learn More?
March Madness Betting Guide
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March Madness Promos for 2023
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