March Madness Sport Gambling Guide – Best March Madness Betting sites

As the saying goes: “everyone has a bet on a March Madness Bracket,” which isn’t too far from the truth, as the NCAA Men’s Division I Basketball Tournament is one of the most highly-anticipated events on the US sporting calendar. Although a college sports tournament, March Madness competes for the spotlight with US pro sports when it comes to following, fan attention, and betting.

The event features 68 of the nation’s best college basketball programs facing off against each other in 67 thrilling games for fans and bettors. Read our full guide to the best March Madness betting sites. Our college basketball and sports betting experts joined forces to tell you everything you need to know about the tournament and betting. We’ll also cover whether your state permits March Madness sport gambling and a few of the most popular bet types with US players


Best Sportsbooks for March Madness Sport Gambling

Most online sportsbooks will offer markets on the NCAA Men’s Basketball Tournament, as the tourney is one of the most anticipated betting events in the US. Our experts have put together the best March Madness betting sites available in many US states for wagering on the Big Dance.

  1. BetOnline – No.1 March Madness sports betting site with low margin basketball odds and great market coverage
  2. Everygame – Claim special NCAAB boosted odds during March Madness to increase your potential payouts
  3. Bovada Consistently offers the best NCAAB odds and covers loads of March Madness markets
  4. BetNow Offers exciting sports betting contests during the NCAAB and NBA season
  5. MyBookieEnjoy March Madness betting with bonuses that feature very low rollover requirements
  6. BetUSBet on Match Madness and NCAA games with the highest betting limits
  7. Offers low margin odds for basketball betting including NCAAB
  8. Jazz Sports Use the handy and intuitive prop builder to create March Madness parlays
  9. LuckyBlockBet on March Madness games and withdraw winnings without having to pass a KYC procedure
  10. XBet Incredibly fast and responsive live betting platform on mobile for NBA betting

To read more information on how we rank the sites featured on, plus a more detailed look at our general review criteria, please click the link.

College Sports Betting in the US

Whether you can bet on March Madness and the types of bets you can place varies from state to state. Some jurisdictions allow every kind of bet on all collegiate programs, some restrict wagering on in-state schools, and some prohibit collegiate bets altogether. Read below for an overview of where you can bet on sports and what restrictions exist for March Madness sport gambling.

Where is Sports Betting Legal in the US?

Since the US Supreme Court overturned the Professional and Amateur Sports Protection Act of 1992 (PASPA), allowing states to pass sports betting legislation, many US states have legalized sports betting in one form or another.

The majority of legal betting states permit in-person and online sports betting. Others have entered expanded gaming compacts with tribal authorities, like North Carolina, while others have legalized retail sports betting but not online or the other way around.

See below for a list of the legal US betting states, the legal betting age, launch dates, and whether you can bet in-person, online, or both.

State Legal betting age Launch date Retail Online
Arizona 21 September 2021 Y Y
Arkansas 21 November 2018 Y Y
Colorado 21 May 2020 Y Y
Connecticut 21 October 2021 Y Y
Delaware 21 June 2018 Y N
Illinois 21 June 2020 Y Y
Indiana 21 October 2019 Y Y
Iowa 21 August 2019 Y Y
Kansas 21 September 2022 Y Y
Maryland 21 November 2022 Y Y
Massachusetts 21 March 2023 Y Y
Michigan 21 January 2021 Y Y
Montana 18 May 2019 Y N
Mississippi 21 August 2018 Y Y
Nevada 21 1949 Y Y
New Hampshire 18 December 2019 Y Y
New Jersey 21 August 2018 Y Y
New Mexico 21 October 2018 Y N
New York 21 January 2022 Y Y
North Carolina 21 July 2019 Y N
Ohio 21 January 2023 Y Y
Oregon 21 October 2019 Y Y
Pennsylvania 21 May 2019 Y Y
Rhode Island 18 September 2019 Y Y
South Dakota 21 March 2021 Y N
Tennessee 21 November 2020 N Y
Virginia 21 January 2021 Y Y
Washington 18 June 2020 Y N
Washington, D.C 18 June 2020 Y Y
West Virginia 21 August 2019 Y Y
Wyoming 18 September 2021 Y Y

States with No College Betting Regulations

While some states heavily restrict collegiate sports betting, many states allow you to place bets on March Madness with no restrictions. Check out our complete list of states with no college betting restrictions and whether you can bet in-person, online, or both below.

State Retail Online
Arkansas Y Y
Delaware Y N
Kansas Y Y
Maryland Y Y
Massachusetts Y Y
Michigan Y Y
Montana Y N
Mississippi Y Y
Nevada Y Y
New Mexico Y N
North Carolina Y N
Ohio Y Y
South Dakota Y N
Washington Y N
West Virginia Y Y
Wyoming Y Y

How March Madness Works

With hundreds of NCAA Division I men’s basketball programs competing for the 68 available places throughout the college basketball season, March Madness is the culmination of a year’s work for college basketball players nationwide. To newcomers, March Madness can be overwhelming, so below, we’ve provided a guide to some of the basics of the tournament, including the selection process, how the bracket is decided, and how 68 teams become one national champion.

The Selection Process

College basketball fans often have one event circled on their calendars at the beginning of the NCAAB season, Selection Sunday, when the NCAA’s Basketball Committee, or selection committee, sets the NCAA Men’s Division I Basketball Tournament bracket. Selection Sunday kicks off March Madness, the bonanza of college basketball that ends with the crowning of the national college basketball champion.

March Madness brings together 68 teams nationwide for a single-elimination tournament in four regions. There are two ways to earn a berth in this jamboree of college hoops.

Each of the 32 NCAA Division I conferences receives an “automatic bid,” given to the winner of its conference tournament, regardless of the school’s regular season record. These schools are collectively known as the “automatic qualifiers.”

The second method to receive an invite is through an “at-large bid,” which the selection committee allocates. The committee, comprised of school and conference administrators from across college basketball, selected for a five-year term, choose the final 36 teams based on overall record, the strength of schedule, and other metrics and stats. The 32 automatic qualifiers and 36 at-large berths comprise the entirety of the 68-team tournament.

The Bracket

Once the selection committee has decided on the field, it ranks the 68 teams from 1 to 68 based on its assessment of the team’s quality. The team with the best regular season and conference tournament performance will be ranked No. 1, the second-best No. 2, and so on.

The teams are divided into four regional brackets, with those ranked 1-4 occupying the No. 1 seed in each regional bracket. Then, the four overall lowest-ranked teams and the four lowest-ranked at-large teams meet in a play-in round called the First Four. The winners of these games join the main March Madness bracket, and the 64-team field is set.

Each region’s teams are seeded 1-16 by the 10-man selection committee. The first-round matchups pit the top team in a region against the lowest team to reward teams with a better ranking. The next highest goes against the next lowest, and so on. In theory, the higher your ranking, the easier your path to the championship.

After the first and second rounds, the nation’s sixteen best teams meet in regional semi-finals, dubbed the “Sweet Sixteen.” The winners will play in the Regional Finals, known as the “Elite Eight.” Finally, the four winners of the regional tournaments will meet for the “Final Four,” the NCAA Men’s Basketball Tournament semi-finals and finals. The winner of the tournament final is crowned the College Basketball national champion.

March Madness Bet Types

Placing your first bet on March Madness can be daunting. So, to help you get started, read our guide to some common bet types available at most March Madness betting sites below.


A moneyline is a simple market that involves bettors predicting who will win a matchup. Moneyline bets are simple and easy to place. If you select an underdog, moneyline bets can offer some excellent payouts, especially if a Cinderella team wins and you correctly predict it.

Points Spread

A point-spread bet requires the favorite to overcome an imaginary points deficit, called a handicap, to ‘cover the spread.’ When you bet on the points-spread favorite, you need them to win by more than the handicap to win the bet. Alternatively, when you bet on the underdog, your wager will payout if the team loses within its handicap or wins.


Another popular wager among basketball bettors is the total points bet, where your sportsbook will set a total for a particular statistic. To win the bet, you must correctly predict whether the total will be over or under the total set. Total points, rebounds, and assists for individuals and the team are usually available for wagering on most US sportsbooks for March Madness.

Player Props

Proposition bets, often called props, are not made on the game’s score but on an individual player or event. For example, will a player be ejected, will a player score a slam dunk in the second quarter, or will a team foul out in the first half? Player props on college games are restricted in some states, so check the sports betting law to see if props are permitted.


A future bet is a wager on a significant event in the future. When betting on March Madness, top US sportsbooks will offer future bets on the winners of each regional tournament and teams to make the Sweet Sixteen, Elite Eight, and Final Four. The earlier you place your bets, the better odds you’ll receive.


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Sam Barnard

Sam is the Gambling Law Expert on, and has been working in the sports and gambling industries for more than a decade across many North American and European sites such as, and Coral bookmakers. An expert on US gambling regulations, Sam oversees content on the site.