Who Will Win March Madness 2026? NCAA Tournament Prediction Markets Have Two Top Dogs

Springtime isn’t just about the warm weather and blooming flowers; it’s a time for March Madness enthusiasts to sink into weeks of teeth-clenching, nail-biting action. 

As teams across the country compete to earn the title of national champion, NCAA Tournament prediction markets have set the stage for what is to come in the 2026 March Madness bracket.

March Madness 2026 Prediction Market Key Takeaways 

• Duke and Michigan have leading 21% chances to win March Madness

• The defending champion, Florida, is third at 16%

• UConn (6%) won the national championship in 2023 and 2024

• Only 14 teams have greater than a 1% chance to win the NCAA Tournament

Current March Madness Prediction Market Odds 

Here’s a look at where Kalshi users have set the chances for the top contenders in March Madness 2026.

Note: Probability is a reflection of real-time supply and demand, and price is the cost of one contract that will pay $1 for a win.

Probabilities found in the table below are from Kalshi. Sign up for a Kalshi account with our Kalshi referral code WSN and claim: Trade $25 and get up to $500.

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March Madness Prediction Market Analysis 

Duke ($.21)

Duke is the best team in the country, according to KenPom, the Holy Grail for college basketball fans. The Blue Devils lost in the Final Four a year ago and are looking for revenge with National Player of the Year contender, Cameron Boozer, and a roster stacked with talent. Jon Scheyer is still very early in his career as the Duke head coach, but he’s proven himself to be an excellent tactician and leader.

Michigan ($.21)

Michigan is only a tick behind Duke in KenPom’s rankings and could pass them by the time the tournament starts. They barely tasted defeat this year and are capable of racing past any team in front of them thanks to their combination of intense defense, offensive execution, and rapid pace of play. Dusty May got to a Final Four with Florida Atlantic, so his getting to the same stage with one of the top two teams in the country is the minimum expectation.

Florida ($.16)

The defending national champions came on strong down the stretch during the regular season and posted wins over Arkansas, Kentucky, Alabama, and Vanderbilt, although they went 0-3 in matchups against ranked non-conference opponents. The Gators are excellent on the glass and play intense defense, but they only shot 31.3 percent from three and 70.8 percent from the free-throw line. There’s a nice blend of experience and talent on this team, although there aren’t many holdovers from last year’s title-winning squad. 

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March Madness Prediction Market Sleeper 

First seeds have won March Madness more than 60 percent of the time, meaning that the smart money is usually on one of the four teams atop each region. However, there are still plenty of instances in which a lower seed won the tournament, including UConn as a fourth seed in 2023.

Sifting through the weeks and finding the correct March Madness dark horse will not only earn bragging rights, but it could prove to be quite lucrative. The NCAA Tournament is known for upsets, and there’s one team that isn’t stealing the headlines, but that is waiting to strike unsuspecting victims.

Kansas ($.03)

Kansas had a tumultuous season marked by availability questions related to star player Darryn Peterson. However, Peterson has been back in the fold and playing well, averaging 20.0 points and 4.4 rebounds for the season, while Kansas has scored wins over Tennessee, Iowa State, BYU, Texas Tech, Houston, and Arizona. Peterson, at his best, is the best player in the country, and the team’s performances during the regular season show that they are ready to make noise in the bracket. 

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Why the March Madness Prediction Market is Moving 

NCAA Tournament prediction markets were erratic leading up to Selection Sunday due to the influence of conference tournaments. Although all of the top dogs were practically guaranteed entry in the bracket, regardless of their conference tourney, lower-tier teams needed to win their conference championships to guarantee or bolster their cases.

Several top teams also matched up with one another during their conference tournament, and the result impacted how the markets were shaped.

The same pattern will occur during the bracket as teams are eliminated.

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How March Madness Prediction Markets Work 

Prediction markets differ from sportsbooks in terms of how they function. 

Sports bettors wager a fixed amount on an odds price that promises a certain payout if the bet is correct. Odds are set by the house and include a vig, which is essentially a tax to ensure “the house always wins.”

Prediction customers buy and sell contracts related to real-world outcomes. For example, purchasing a Duke contract means that the customer will win if Duke takes home the March Madness crown.

Every contract with a winning outcome will pay $1, regardless of the price. Using the example of Duke, which is trading at $.21, a consumer will win 41 for every $.21 contract they purchase.

Prices and probabilities will likely fluctuate after a contract is purchased. However, that will not change the cost the user had to pay, or how much a winning outcome would pay.

March Madness Prediction Markets vs. Traditional Sportsbooks 

One of the biggest differences between sports event contracts at prediction platforms and betting odds at traditional sportsbooks is the difference in price, or bang for the buck, that customers have to accept.

Every sports betting odds value also has an implied probability. +100, which allows customers to win $1 from a $1 bet, carries an implied probability of 50 percent. 

FanDuel sportsbook, the leading sports betting operator in America, lists Duke at +350 to win March Madness. Those odds carry a 22.2 percent implied probability, which is greater than the 21 percent determined by Kalshi users. 

That means that sportsbook customers are paying more or would win less for the same outcome if they used FanDuel as opposed to Kalshi.

FanDuel also has Michigan at +300, which equals a 25 percent implied chance. That’s despite Kalshi having the Wolverines at 21 percent, the same as Duke.

Here’s a comparison between FanDuel’s implied probability and Kalshi’s probability for the top in March Madness odds.

The overall difference in probabilities between the top 10 candidates to win March Madness is 4.4 percent, or an average of 0.44 percent per market. In other words, Kalshi users would receive an average of 0.44 percent better likelihood than FanDuel bettors. 

Where to Trade March Madness Markets Legally 

Licensed prediction platforms and markets are regulated by the Commodity Futures Trading Commission. Legal platforms will have a CFTC license and will be pursuant to their rules, which includes a list of banned and available contract markets.

While customers have lots of choices, Kalshi, Crypto.com, and OG.com are three of the top prediction market platforms available to US customers.

Kalshi is legal in all 50 states, although it is dealing with pushback in more than a dozen states. As the largest prediction operator, it has been put in the crosshairs of state regulators who do not agree with their event contracts and believe they should be a state-regulated entity as a sports betting provider.

Crypto.com is legal in 41 states. Customers in New York, Nevada, Ohio, Michigan, Arizona, Maryland, Massachusetts, New Jersey, and Illinois cannot access the platform.

OG.com, operated by Crypto.com, is legal in every state other than Arizona and New York.

Overall, customers across the country should have access to at least one prediction platform with March Madness prediction market available.