🆓 Free March Madness Contests & Bracket Challenges 2026: Test Your Bracket Picks

March Madness is underway with the First Four in full swing, and we're all looking ahead to Thursday's first-round play. Once you have your 2026 NCAA Tournament bracket complete, put it to use in these free March Madness bracket contests for a shot at winning MILLIONS in prizes. Think you have the first-ever perfect bracket? You could win $1 BILLION.

Put your March Madness bracket skills to the test for a shot at millions in prizes from our best sports betting sites.

You don't necessarily need a perfect bracket (except for the biggest prizes) to reap the rewards of these March Madness betting promos. All of the contests below are completely FREE to enter, you just need to have an account. The Kalshi Billion Dollar Bracket is the grand prize for this year's perfect bracket.

🆓 Free 2026 March Madness bracket contests

Once you have your March Madness bracket predictions complete, it's time to test your picks and March Madness bracket reactions against FREE bracket challenges and contests from our best sports betting sites.

Here are the available March Madness bracket challenges and contests ahead of the 2026 NCAA Tournament. All of contests listed below are FREE to enter, and we expect many more to be released through the week.

Be sure to keep an eye on the March Madness betting promos for added bonuses throughout the tournament.

(Not available to residents of Ontario)

Kalshi Billion Dollar Bracket

The Kalshi Billion Dollar Bracket contest simply asks users to create and verify their account with Kalshi, then submit their best shot at a perfect bracket directly on the platform. Entrants must be 18 years of age or older and are limited to one bracket entry.

The grand prize of $1 billion is awarded only for a perfect bracket. In the absence of a perfect bracket, the first-place prize for the highest score will be $1 million. The grand prize is insured by SIG Parametrics, ensuring the payout would be covered if someone wins.

The bracket contest is not available to users in N.Y. and Fla., or outside of the U.S.

bet365 $10 Million Bracket Challenge

bet365's perfect bracket challenge is back, with a $10 million prize to whoever completes a perfect bracket.

Don't fear if you lose a couple of games on Day 1 of the tournament. There is a $100,000 prize for the contestant with the most points by the end of the bracket, with additional prizes for the top 5,000 finishers.

Enter today via bet365 bonus code "SBRBONUS".

DraftKings March Mania Survivor Pool

DraftKings is offering a $1,000,000 grand prize for it's March Mania Survivor Pool winner. There's a cap of one entry per customer, and submissions are due before tipoff of Thursday's first game (TCU vs. Ohio State, 12:15 p.m. ET). In the event of a tie, the $1,000,000 prize will be split among the winners.

Our March Madness survivor guide can help you prepare for this survivor-style contest,

There's no DraftKings promo code needed!

🛍️ March Madness betting promos

March Madness betting promos are special offers and incentives that sportsbooks provide during the NCAA Tournament to attract bettors and enhance their betting experience.

These promotions can take various forms, including deposit bonuses, first bet offer, odds boosts, and special contests or tournaments. Sportsbooks may offer increased odds on select games or players, allowing bettors to potentially earn higher payouts on their wagers.

Deposit bonuses are a common type of March Madness betting promo, with sportsbooks offering to match a percentage of a bettor's initial deposit up to a certain amount. First bet offer provide bettors with an opportunity to place a wager without risking their own money, and the wagers are often given as a reward for making a qualifying bet or deposit.

Additionally, March Madness betting sites may run special contests or tournaments during March Madness, such as bracket challenges or pick'em competitions that allow bettors to compete against each other for prizes.

March Madness betting promos are designed to add excitement and value to the tournament for bettors, incentivizing them to place more bets and engage with the event.

These promotions can vary widely between sportsbooks, so bettors should shop around to find the best offers and take advantage of any opportunities to maximize their betting potential during March Madness. See our best sportsbook promos and March Madness betting promos here.

⏰ 2026 March Madness bracket deadlines

What you definitely don't want to do, is miss the March Madness bracket deadline for these contests - and your own pools.

Here are the deadlines for some of the best FREE March Madness bracket challenges, including the Kalshi Billion Dollar Bracket - that's the one deadline you definitely don't want to miss this year!

🏃 Why you shouldn't wait until the last minute

Don't wait until the last minute. Bracket platforms - ESPN in particular - experience massive server strain in the hours leading up to the first tipoff, with millions of entries flooding in simultaneously as the deadline approaches.

Slow load times, error messages, and outright crashes are a real risk when you're cutting it close, and a failed submission means your bracket doesn't count - full stop.

Get your March Madness bracket predictions in now, and save yourself the stress of watching the clock tick toward 12:15 p.m. ET while a loading screen spins. SBR recommends submitting at least one hour before the deadline, and ideally before you sit down for your morning coffee.

🧠 March Madness bracket picks, contests & tips

Be sure you've done your March Madness research to give yourself the best shot at winning some of the above prizes. Here are our expert picks and guides to the 2026 NCAA Tournament:

• When are 2026 March Madness brackets due?
• Printable March Madness bracket
• Expert March Madness bracket predictions
• March Madness AI bracket predictions
• Best FREE March Madness bracket contests