Best March Madness Betting Sites & Apps 2023

March Madness is one of the most popular times for sports betting. Not only are there 67 games in the NCAA Tournament to bet on, but they are all jam-packed into a handful of days. The first-round games on the Thursday and Friday draw massive traffic to March Madness betting sites. 

At Pickswise, we have gone through an extensive review process to evaluate the best March Madness betting sites based on a number of factors. Continue reading to learn about our selection process and to find out our favorite March Madness sportsbooks.

🔥 Top 5 March Madness betting sites

After evaluating all of the March Madness betting sites, we have come up with our favorite sportsbooks to use during the NCAA Tournament. We looked at sign-up offers and promotions, odds, and many other aspects to create the list below.

Sportsbook	Welcome Offer + Code	Pickswise Rating
FanDuel	Bet $5, Get $200 in Bonus Bets + 3 Weeks of NFL Sunday Ticket	5/5
DraftKings	Bet $5, Get $250 Instantly + 1 Month of NFL+ Premium	4.9/5
BetMGM	$1,500 in First-Bet Insurance	4.8/5
Caesars	$1,000 First Bet on Caesars	4.7/5
Bet365	Bet $5 and Get $200 in Bonus Bets OR $1,000 Back If Your First Bet Loses 💰💰💰	4.6/5

💻 March Madness Betting Sites

Now you know our best March Madness betting sites, but this section will explain why these sportsbooks are our favorites. You’ll learn about all of the sign-up offers and also find out which March Madness betting sites are available in your state.

FanDuel March Madness

FanDuel earned a perfect 5/5 in our evaluation process, thanks to a wide variety of available March Madness markets, various futures odds, and an amazing sign-up bonus. FanDuel also posts odds for the next round’s matchups extremely quickly. You can claim it by clicking here 👈.

FanDuel welcome offer

New customers can claim $200 in bonus bets + 3 weeks of NFL Sunday Ticket from a $5 wager. Once your first bet settles, you'll receive your bonus bets so long as you meet the key terms and conditions. There is no odds restriction tied to your qualifying wager, so you can risk $5+ on any bet you'd like. Additionally, you'll earn 3 weeks of NFL Sunday Ticket just in time for the football season.

Why you should bet with FanDuel

• Huge deposit bonus
• Live betting markets for March Madness
• National Champion, Final Four and regional college basketball futures markets

What states is FanDuel available in?

AZ, CO, CT, IA, IL, IN, KS, KY, LA (permitted parishes only), MA, MD, MI, NC, NJ, NY, OH, PA, TN, VT, VA, WV or WY.

#2 DraftKings March Madness

Coming in at #2 in our best March Madness betting sites is DraftKings Sportsbook. DraftKings earned a near-perfect grade of 4.9 due to their simple new-user promo, their trusted reputation, and their prop market availability. Sign up for a new account 📝 today and get started with DraftKings.

DraftKings welcome offer

New members who sign up for an account with DraftKings Sportsbook from now until September 19, 2024 can claim $250 in bonus bets from just a $5 first bet, no matter the result of that first wager. That's not all you get as a new member of DraftKings, you also receive 1 month free of NFL+ Premium, so you can watch all the action and see your NFL bets come in. You don't even need a DK promo code. After signing up and depositing $5+, you can wager $5 or more on any betting market without worrying if you win or lose. Win or lose, you'll automatically earn 10 $25 bet credits from DK.

Why you should bet with DraftKings

• Large variety of betting types and markets
• Competitive odds on sports from all over the world 
• Daily fantasy sports using your sports betting bankroll

What states is DraftKings available in?

AZ, CO, CT, IA, IL, IN, KS, KY, LA (permitted parishes only), MA, MD, MI, NC, NJ, NY, OH, PA, TN, VT, VA, WV or WY

#3 BetMGM March Madness

BetMGM is another sportsbook that ranks very highly in our list of March Madness betting sites. BetMGM has a lucrative deposit bonus, high payout limits, and a huge number of betting markets. ☀️ Create a new account ☀️ today with BetMGM.

BetMGM welcome offer

BetMGM Sportsbook's new-user promotion gives a $1,500 worth of first-bet insurance. Make a first bet up to $1,500, and if that bet loses, you'll get it back in bonus bets.

Why you should bet with BetMGM

• User-friendly website and mobile app
• Live betting with live streaming 
• 24/7 customer support

What states is BetMGM available in?

AZ, IA, IN, KS, KY, LA, MI, NJ, OH, PA, VA, WV or WY

#4 Caesars March Madness 

Caesars Sportsbook comes in at number four on our list of best March Madness betting sites, but its overall grade of 4.7 is not that far behind the top spot. Caesars offers one of the biggest sign-up bonuses in the sports betting market, which gives them a huge boost in our scoring criteria. Start your betting journey with Ceasars by ➡️ joining here ⬅️ with promo code PICKSWISE1000.

Caesars welcome offer

Caesars is offering first-bet insurance to all new customers who sign up for a new account and place a first deposit of $10+. If your first wager loses, you'll get your wager amount back in a bonus bet worth up to $1,000. Just enter the Caesars promo code at sign-up.

Why you should bet with Caesars

• Excellent player rewards program
• Extensive menu of markets
• Huge sign-up bonus

What states is Caesars available in?

AZ, CO, IA, IL, IN, KS, KY, LA, MA, MD, MI, NJ, NY, OH, TN, VA, WV or WY

Pulling from the table above, you will find all of the best NASCAR betting sites listed below. For each of these NASCAR sportsbooks, we will include their current welcome offer and what makes them stand out from the other best Racing betting sites. 

#5 bet365 March Madness

Bet365 is one of the top March Madness betting sites because customers have the ability to live stream any games on their website. They have a long standing brand overseas and are quickly moving into the States now. You can get in on the action with Bet365 by clicking here 👈 and signing up for a new account.

bet365 Welcome Offer

New Bet365 customers can choose between two welcome offers. The first gives $200 in bonus bets from a $5 first wager, whatever its outcome. The second is first-bet insurance worth up to $1,000. You'll get your first bet back in bonuses if it doesn't win, up to the $1,000 maximum.

Why you should bet with Bet365

The following are reasons why you should bet with Bet365:

• Bet365’s reputation continues to grow
• Bet boosts for select markets
• Ability to live stream bets

What states is Bet365 available in?

AZ, CO, IA, IN, KY, LA, NC, NJ, OH and VA

🔢 How we rate March Madness sportsbooks

At Pickswise, we have a unique formula that we use to evaluate March Madness betting sites. We look at things such as the various new-user promos, the variety of markets offered for March Madness, and the odds offered for those respective markets. In addition to the user experience, we also take into account which states are offered by the March Madness betting sites. All of our top sportsbooks are available in a variety of states.

✍🏼 How to sign up with a March Madness sportsbook online

March Madness betting sites that are difficult to join would not crack our list. All five of the best March Madness betting sites are very easy to sign-up for. Use the step-by-step guide below to get started.

1. Use any of the links in the article to join the March Madness sportsbook of your choosing
2. Create an account
3. Meet the minimum deposit and bet requirements so that you are eligible for the sign-up bonuses. These can vary so be sure to review the terms and conditions of the offer

🤔 How to choose a sportsbook for March Madness?

We’ve recommended several great options to choose from for your preferred March  Madness betting site. All have their pros and cons, depending on what is most important to you as a sports bettor. You may want the biggest sign-up bonus, the best odds, or simply just the best mobile app, which could all lead you to various March Madness betting sites.

Having odds available quickly is the determining factor when I select a sportsbook. After the first round of the NCAA Tournament is over, the second-round matchups are known immediately. I want to have instant access to the odds for that game so that I can get the best line.

🏆 Which March Madness betting site provides the best odds? 

Unfortunately, it depends. There isn’t one particular sportsbook that offers the best odds for every market. Some have the best odds for futures markets but are not as competitive with player prop markets. You’ll need to decide which market is most important to you, then seek out which March Madness betting site offers the best odds for that market. 

⚖️ Are these March Madness sportsbooks legal and legit? 

Yes, all of the March Madness betting sites on our list are legal and legit. In fact, we wouldn’t recommend them if they were not. Part of the review process evaluates the legitimacy of each sportsbook to examine how they take deposits and how seamless their payouts are. 

Here are the states where online sports betting is legal: 

• Arizona
• Arkansas
• Colorado
• Connecticut
• Delaware
• Illinois
• Indiana
• Iowa
• Kansas
• Kentucky
• Louisiana
• Maine
• Maryland
• Massachusetts
• Michigan
• Mississippi
• Montana
• Nevada
• New Hampshire
• New Jersey
• New York
• North Carolina
• Ohio
• Oregon
• Pennsylvania
• Rhode Island
• Tennessee
• Vermont
• Virginia
• Washington
• Washington D.C.
• West Virginia
• Wisconsin
• Wyoming

The March Madness sportsbooks we have covered above are at the top of the market. You can’t go wrong with signing up for any of them, which is why some are legal in more than 20 states.