Top NCAA March Madness Betting Sites & Sportsbooks 2023

It’s the most wonderful time of the year: March Madness betting is here! We’ll crown a national champion in less than a month, and on the way bettors will be able to place bets on the outcomes of those games while taking advantage of a number of great promos, offers, and welcome bonuses from March Madness betting sites in the process.

Top March Madness Betting Sites 

While also March Madness betting sites have the same functionality—a spot for bettors to legally place bets and earn winnings—they are not all created equal. Certain sports betting sites are better for certain types of players, and some welcome bonuses will appeal more to one person than it does another.

That’s why we’re here. We’ve analyzed all March Madness betting apps to let you know what we like about them, where they can improve, and how you the bettors can make the most out of your experience—including unlocking everything that comes with the welcome bonus after you register for a new account. Here’s what you need to know as you get ready to start playing.

What We Like About The Best March Madness Betting Sites

BetMGM March Madness Betting Site

There’s a reason BetMGM Sportsbook is one of the most popular March Madness betting sites in the industry. New players will receive a first-bet bonus up to $1,000. ➜

That means those players will earn cash profit if they win their first bet or receive five bonus bets in equal 20% denominations of their original wager if it loses. Either way you’re in good shape here betting during the NCAA Tournament.

Caesars March Madness Betting Site

If you’re looking to go big at your March Madness betting site, your best bet (literally) is Caesars Sportsbook. All bettors can earn up to $1,250 on Caesars with their first real-money wager. ➜

That’s the largest potential dollar amount on the board and makes it a great offer for bettors of all shapes and sizes. Either you’ll earn cash profit with a win or you’ll receive a matching bonus bet in equal value with a loss.

DraftKings March Madness Betting Site

Want to bet on March Madness? It’ll only take a $5 wager to earn you $200 in bonus bets. Bettors who place a $5 pre-game wager will $200 in Bonus Bets Instantly ➜

That’s effectively +3000 odds on any team to win an NCAA Tournament game. They’re paid out as 8 $25 bonus bets, allowing players to spread them out across bet types and markets. That versatility is what you’ll find with most features at DraftKings Sportsbook.

FanDuel March Madness Betting Site

It can be stressful placing bets at March Madness betting sites—but FanDuel Sportsbook takes some of that stress away with thanks to a deal that gives you 10x your first bet up to $200. 

Just place your first March Madness bet up to $20 ➜ and get 10x your money back in bonus bets, regardless of whether or not your wager hits. You can use the $200 in bonus bets in any way, but you must use them within 14 days. The bonus bets will be credited within 72 hours of placing your first bet.

PointsBet March Madness Betting Site

One welcome bonus is good—but five is great. New bettors at PointsBet Sportsbook will receive a Second-Chance bet up to $50 each of the first five days after registration. ➜

That means a total of up to $250 in second-chance bets, with the unique feature that your first bet of each day is insured. It’s a unique offer for what many consider to be one of the most unique sports betting sites.

BetRivers March Madness Betting Site

Register for a new BetRivers Sportsbook account and earn aSecond-Chance bet up to $500. ➜ Though that’s less than some of its competitors, it’s likely plenty for the vast majority of bettors. 

Either you’ll earn cash profit on your first real-money wager or receive a matching bonus bet and a second chance to get your bet correct.

Barstool March Madness Betting Site

All new players who register for a new account with the Barstool March Madness Betting Site will receive a $1,000 new player bonus. That means bettors who place a real-money wager up to $1,000 with their very first action will receive a full refund in the form of a bonus bet if it loses. 

That’s a second chance to earn your funds back in addition to all of the great March Madness bonuses that Barstool Sportsbook will provide players.

March Madness New User Sportsbook Promos

All March Madness betting sites will offer new bettors some kind of sportsbook promo code that unlocks a welcome bonus. These welcome bonuses all provide bettors with something that enhances the sports betting experience and increases potential payouts. They’re all similar in that respect—but all are unique in their own right.

The two most popular forms of welcome bonuses are first-bet bonuses and bet-and-get offers. First-bet bonuses allow bettors to place a first real-money wager knowing that if that wager loses, they’ll receive matching bonus bets and a second chance to get their bets correct. 

Of course, a winning first wager earns cash profit like it would any other bet. Bet-and-get offers work like this: Place a small wager and automatically receive bonus bets that get transferred into your account. There’s less upside here but also less risk—making it a great option for all players.

Where Can I Use March Madness Sportsbooks?

Online sports betting is available in more than 30 U.S. states, and that’s great news for players ready to get their hands on all the March Madness betting sites and the odds they provide. Here’s a look at the states where you can legally place bets on college hoops and March Madness:

Odds on March Madness Betting Sites

We always recommend registering with multiple online sportsbooks, not only because you can take advantage of additional welcome bonuses but also because you can shop odds and make sure you’re getting the best value on your bets. 

Getting one team’s spread at -110 vs. -115 may not feel like a big difference, but that’s an additional $5 you’re wagering each time to win $100 ($115 vs $100), and that really adds up over time. 

While most odds are going to be similar—if not identical—it’s always worth looking around at multiple March Madness betting sites so you are sure you’re getting the best deal each time you place a bet.

Live Betting on March Madness Betting Sites

We know how quickly NCAA Tournament can change in an instant. That means that betting does not end once games begin. Live betting is a major part of all online sports betting sites—and especially during March Madness. 

It’s important to have a website (and strong internet connections) because these odds change in real-time, and a missed or made shot will shift odds in a matter of seconds. 

All major operators have live-betting functionality and make it easy for bettors to wager in-game. Realistically, it’s easier to place live bets on mobile betting apps but a fast computer and internet will make it possible on betting sites, too.

March Madness Betting Sites FAQs

Where can I use March Madness betting sites?

March Madness betting sites will be available in more than 33 states, plus Washington, D.C. There are restrictions in some states on placing bets involving in-state teams or on games played in a particular state.

Which March Madness Betting Sites offer the best promos?

Different online sportsbooks provide different promotions to their players. Certain features will interest certain players, so it’s tough to say which are the best. All bettors are unique, so you’ll need to determine which kind of bets you want to make and then figure out which online sportsbooks best cater to those needs.

Which March Madness Betting sites have the best odds?

Most March Madness betting sites will tout similar odds on NCAA Tournament games. That being said, it’s important that bettors always shop lines at different operators to see where the best odds are for their specific game. What’s more, many operators offer odds boosts and profit boosts on major markets, which the NCAA Tournament would qualify for. Always register with multiple online sportsbooks so you have access to the best odds at all times.

Which March Madness Betting sites payout the fastest?

What’s great about using all legal and licensed online sportsbooks is that payouts happen in a matter of minutes and hours—rather than days and weeks at offshore sportsbooks. It depends which type of banking method you’re using, but most March Madness betting sites will pay out winnings within 24 hours.