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March Madness Betting Sites

May 28, 2024

One of the most anticipated events of the year, the NCAA March Madness Basketball tournament is a wild ride - and an unbelievably fun betting experience. So don't miss out on creating your bracket and wagering with the top March Madness Betting Sites!

Jason Mancini
Associate Editor

March Madness Betting Sites

Whether you're looking for bracket challenges, pools, or traditional betting - these are the best March Madness betting sites of 2023!

21+. Bet Responsibly. Gambling problem? Call 1-800-GAMBLER.
Top March Madness Betting Sites
Bookmaker Welcome BonusAction
#1
Bet $1, Double Your Winnings on Your Next 10 Bets
#2
Bet $5, Win $300 in Bonus Bets
+ 3 Months of NBA League Pass
#3
20% Deposit Bonus up to $1000
#4
Bet365 bonus
Bet365 bonus
Bet365
5/5
Bet $5, Get $200 or
$1,000 First Bet Safety Net
#5
2nd Chance Bet up to $500
#6
Get up to $100 in Bonus Bets Back if Your First Bet Doesn't Win
#7
Betway bonus
Betway bonus
Betway
5/5
$250 First Bet Reset
#8
$250 Bet Match over the first 5 weeks
#9
Up to $300 Cash Back with Promo Code BBST
#10
Borgata bonus
Borgata bonus
Borgata
3/5
Bet $20 Get $100
#11
$250 Welcome Match Bonus
#12
$500 First Bet Insurance

With sports betting sweeping across the US since legalization, betting on March Madness is getting better and better. Ranging from traditional wagers on games, through to massive bracket pools with huge cash prizes - there has never been a better time to start betting on the NCAA tournament. 

And it is a phenomenon, bringing millions of people together for a month of ups and downs as the nation holds its collective breath waiting to see who will lift the trophy.

About 45 million Americans wagered on March Madness in 2022

Best March Madness Betting Sites

This is what it's all about, and almost definitely the reason you're on this page. So what are the best online betting sites for March Madness betting? 

We've narrowed the best betting sites with bracket pools, welcome bonuses, and leading odds down to our own final four:

Unsurprisingly, the two sportsbooks that have a long history with daily fantasy sports are ones we recommend for your March Madness betting, alongside betting sites with great promos and unique betting features that are great for a tournament like this. 

Best March Madness Betting Sites

DraftKings March Madness

Bet $5, Get $200 in Bonus Bets Instantly

DraftKings has firmly cemented itself as one of the best sportsbook in the nation, building off their unbelievable daily fantasy success. So when online sport betting was legalized in the US, they continued their spread and innovative stance.

During the NCAA basketball season, their free-to-play March Madness brackets and pools are one of their best offerings, with two separate bracket challenges running this year - the DK Millionaire Bracket and Zero Right Bracket Challenge.

Not only can you enter a public March Madness bracket with thousands of others, and fill out a bracket for the chance to win huge cash money - you can also set up smaller, private pools for friends, family, and work.

So enjoy the NCAA Tourney with one of the most widely available betting sites in the country - and even snag a great welcome bonus to give you a leg up when betting this spring!


FanDuel March Madness

Bet $20 Get $200 in Bonus Bets

You've certainly heard of this betting site, and for good reason. FanDuel is one of the premier sportsbooks in the country, with a streamlined mobile offering, and super expansive and in depth betting markets.

And of course they have also used their daily fantasy prowess to bring an excellent March Madness Betting experience with a bracket pool and bracket bet insurance.

New users can all claim a fantastic FanDuel March Madness betting bonus of 10x Your First Bet up to $200 in Bonus Bets - thats a heck of a way to start the tournament given there are always first round upsets!


Caesars Sportsbook March Madness

Bet $1, Double Your Winnings on Your Next 10 Bets

When we talk about why you should try Caesars Sportsbook for March Madness, it's because they have some of the best college basketball promos in the US.

Unlike most betting sites that offer singular promos for events, Caesars Sportsbook excels at changing their promotions daily, giving you the chance to earn a little extra throughout to entire March Madness tournament. These promos can range from parlay insurance to bet & get bonus for specific matchups.

Aide from daily promos, Caesars also features a big Bonus Bets welcome offer, and has offered numerous giveaway promos in the past.


Fanatics Sportsbook March Madness

Bet & Get up to $1,000 in No Sweat Bets

Fanatics Sportsbook is the latest betting site to make our list of March Madness options, and it comes with a ton of great betting options for live and tournament wide wagers.

March Madness Bracket Challenges

Bracket Challenges are one of the best parts about March Madness every year, and the water cooler talk during the month will almost certainly include someone talking about their Cinderella picks this year.

Most March Madness betting sites will showcase a bracket challenge for their users to enjoy alongside the more traditional betting, and frequently with a great cash prize for the winner! Sites like FanDuel Sportsbook, DraftKings Sportsbook, Bet365 and BetMGM have the best bracket challenges and promos for March Madness.

March Madness Bracket Challenges & Pools

Bet365 $10 Million Bracket Challenge
March Madness Apr 27, 2023

Bet365 has the biggest bracket challenge for March Madness, with a top prize of $10,000,000! Build your bracket now!

DraftKings Millionaire Bracket Challenge
March Madness Apr 27, 2023

The DraftKings Millionaire Bracket is back, and better than ever, so put together your DraftKings College Hoops Bracket for a chance to win $1,000,000!

DraftKings Sportsbook Zero Right Bracket Challenge
March Madness Apr 27, 2023

Get a free shot at $100,000 with the DraftKings Sportsbook Zero Right Bracket Challenge. All you need to do is pick every loser during March Madness!

BetRivers Bracket Challenge
March Madness Apr 27, 2023

BetRivers has put out a March Madness Bracket Challenge for bettors to enjoy! Win prizes by picking the most correct results through the NCAA Tournament.

More March Madness Betting Sites

While the 'final four' March Madness betting site we've already highlighted are excellent, there are many more betting sites for March Madness that boast great betting features and valuable bonuses to make wagering on the NCAA tournament exciting. 

BetRivers March Madness

2nd Chance Bet up to $500

BetRivers has been very consistent in offering solid odds, easy to claim NCAAB parlay insurance, and regular odds boosts on the betting site, which makes them very appealing for March Madness.

While the BetRivers Bracket Challenge doesn't boast the highest top prize, it's free to play, which makes it just another great way to enjoy the NCAA Tournament.

Additionally, BetRivers frequently puts out betting competitions and promotions for users, with March Madness being a major draw for pools and betting squares games.


Bet365 March Madness

Bet $5, Get $200 or $1,000 First Bet Safety Net

Bet365 tends to be more of a global betting brand, but if you're a fan of live betting on March Madness this is without a doubt one of the best betting sites you can find.

Not only are the odds on Bet365 some of the best in the country, you can also take advantage of NCAAB early payout offers to help make sure you profit on March Madness games and avoid buzzer beater upsets. As long as the team you back on the moneyline market leads by 18 at any point, Bet365 will payout as a win!

And let's not forget the fantastic Bet365 Bracket Challenge this year, with a top prize of $10,000,000.


ClutchBet March Madness

$250 Bet Match over the first 5 weeks

ClutchBet is one of the smaller March Madness betting sites we've featured, but this in no way means they don't offer a solid betting experience and a number of promos to enjoy through March!

Clutch Clash is also a pretty innovative betting feature that lets you wager on key players in a head to head style, taking bets on who will score, assist, or take more rebounds during a game - which is a really fun way to wager on basketball!

March Madness Betting Promotions

There are tons of great betting bonuses when you sign up for a new betting site around March Madness, as well as numerous promotions that run through the tournament

Below you'll find the best welcome bonuses, as well as details on specific March Madness promotions like bracket challenges, free-to-play pools, and various bet & get offers. This is a great opportunity to capitalize on frequent promos to boost your potential profit!

21+. Bet Responsibly. Gambling problem? Call 1-800-GAMBLER.
Best March Madness Betting Bonuses
Bookmaker Welcome BonusAction
#1
Bet $1, Double Your Winnings on Your Next 10 Bets
#2
Bet $5, Win $300 in Bonus Bets
+ 3 Months of NBA League Pass
#3
20% Deposit Bonus up to $1000
#4
Bet365 bonus
Bet365 bonus
Bet365
5/5
Bet $5, Get $200 or
$1,000 First Bet Safety Net
#5
2nd Chance Bet up to $500
#6
Get up to $100 in Bonus Bets Back if Your First Bet Doesn't Win
#7
Betway bonus
Betway bonus
Betway
5/5
$250 First Bet Reset
#8
$250 Bet Match over the first 5 weeks
#9
Up to $300 Cash Back with Promo Code BBST
#10
Borgata bonus
Borgata bonus
Borgata
3/5
Bet $20 Get $100
#11
$250 Welcome Match Bonus
#12
$500 First Bet Insurance

Latest Basketball & March Madness Promos

SI Sportsbook March Madness Bet $10 Get $5 Parlay Promo
March Madness Apr 27, 2023

SI Sportsbook is keeping the Madness going through the first two rounds of the NCAA Tournament with a Bet $10 Get $5 offer!

BetRivers March Madness Parlay Insurance - $25 Back as a Bonus Bet
March Madness Apr 27, 2023

Insure you March Madness parlays with BetRivers, and get up to $25 back each day through the NCAA Tournament!

Caesars Sportsbook Longshot Parlay Bonus
March Madness Apr 27, 2023

Caesars Sportsbook knows America loves an underdog, and there is no better time to bet a longshot parlay than during March Madness, with this promo giving you $15 in Bonus Bets!

FanDuel Sportsbook Bracket Parlay Insurance - $25 Each Day!
March Madness Apr 27, 2023

Insure you College Basketball bets during the first rounds of March Madness with FanDuel Bracket Parlay Insurance

Bet365 $10 Million Bracket Challenge
March Madness Apr 27, 2023

Bet365 has the biggest bracket challenge for March Madness, with a top prize of $10,000,000! Build your bracket now!

SI Sportsbook Cinderella Tourney Bet Insurance
March Madness Apr 27, 2023

Everyone loves a Cinderella Story during March Madness, and you can even get $10 back from SI Sportsbook if your Cinderella team doesn't make it to the round of 16!

FanDuel Sportsbook Bet the Bracket No Sweat - up to $100 in Bonus Bets
March Madness Apr 27, 2023

Bet on the NCAA Bracket this March and get a refund as Bonus Bets if your wager loses, up to a maximum of $100!

DraftKings Millionaire Bracket Challenge
March Madness Apr 27, 2023

The DraftKings Millionaire Bracket is back, and better than ever, so put together your DraftKings College Hoops Bracket for a chance to win $1,000,000!

DraftKings Sportsbook Zero Right Bracket Challenge
March Madness Apr 27, 2023

Get a free shot at $100,000 with the DraftKings Sportsbook Zero Right Bracket Challenge. All you need to do is pick every loser during March Madness!

BetRivers Bracket Challenge
March Madness Apr 27, 2023

BetRivers has put out a March Madness Bracket Challenge for bettors to enjoy! Win prizes by picking the most correct results through the NCAA Tournament.

FanDuel Sportsbook March Madness 10x Your First Bet Offer - up to $200!
March Madness Apr 27, 2023

FanDuel Sportsbook is tipping off the March Madness season with a huge new user offer - claim 10x your first bet up to $200 in bonus bets!

Bet365 NCAAB Early Payout Offer - Win if your team goes up by 18
March Madness Apr 27, 2023

Cash in on your wager before the game even ends with Bet365, and avoid any comeback ruining you NCAAB bet!

BetRivers NCAAB Saturday Parlay Insurance - $25 back if you lose!
March Madness Apr 27, 2023

Cover up to $25 on NCAAB parlays with BetRivers weekly parlay insurance promotion!

Questions About March Madness

Where can I bet on March Madness?

That depends a little on how you want to bet. There are a bunch of betting sites that allow you to place wagers on NCAA games, but if you're looking more for a bracket creator, your option are narrowed down.

The best pools and bracket challenges are -

  1. DraftKings Sportsbook
  2. FanDuel Sportsbook

Top NCCA Basketball Betting Sites -

  1. FanDuel Sportsbook
  2. Caesars Sportsbook
  3. DraftKings Sportsbook
Is NCAA Betting Legal?

Yes. And with very few, limited exceptions, it is just as legal to bet on as the NBA.

For example (really the only notable exception for current legal states), New Jersey has restricted wagering on NJ schools while they compete within the state. So if you're looking to bet on Princeton or Rutgers, you absolutely can as long as they are playing on the road outside of state lines.

Keep in mind that as more and more states come into the fold for online sports betting, there may be similar restrictions like this intended to protect the integrity of college athletics.

Is March Madness Betting Legal?

Absolutely, similar to how NCAA betting is pretty much fully accepted in the states. Creating a March Madness Bracket is one of the most popular sports betting events - and has been going on for years before sports betting was even legal.

So now that you can place real money wagers on college basketball games online, it just makes March Madness so much better!

Are there betting site bonuses for March Madness?

Not exactly. Plenty of sites offer great welcome bonuses and even basketball specific parlay boosts or insurance, but the best March Madness Promos really are the bracket pools offered by DraftKings and FanDuel, which feature huge cash prizes at the end.