Kalshi $1 Billion Perfect Bracket Sweepstakes – March Madness

Posted Date: March 16, 2026

Submit a perfect 2026 NCAA March Madness men’s tournament bracket on Kalshi for a chance to win a $1 billion prize.

New to Sweepstakes? Start Here

If you’re new to online sweepstakes, this page walks you through exactly how it works, from entry limits and instant wins to avoiding scams and improving odds.

Entry Frequency: Single Entry

Total Number of Prizes: 1

Grand Prize ARV: $1,000,000,000

Total ARV of All Prizes: $1,000,000,000

Start Date: March 19, 2026

End Date: April 6, 2026

Eligibility:

Excludes FL, NY

Prize Description:

A payment of one billion dollars for a perfect 2026 NCAA Men’s Tournament bracket. If no perfect bracket is submitted, a $1,000,000 Secondary Prize is awarded to the highest scoring bracket.

Quick Take!

Oh wow, a billion bucks for a flawless NCAA bracket, can you imagine? I love that it’s a one-and-done bracket entry, so no daily grind. It’s a quick click-and-go entry if your account and KYC are ready. Great for bracket-nerds who want a huge payoff, skip if you hate filling out full brackets.

How to Enter:

• Online entry form
• Account registration with Kalshi and KYC verification required
• Sign in and complete the Contest Entry Form selecting the winner for every game in the bracket
• One (1) entry per person/account; entries are final once submitted
• Contest Entry Forms open 03/16/26 approx 2:00 PM ET and must be submitted by 03/19/26 01:00 PM ET or tip-off of the first game, whichever is earlier

All Prizes

Grand Prize:

Payment of one billion dollars (US $1,000,000,000)
Prize will be evenly split among multiple eligible Entrants who submit a Perfect Bracket
Sponsor may elect to award the Grand Prize in ten (10) equal annual installments of $100,000,000 each

ARV: $1,000,000,000

Secondary Prize:

Payment of one million US dollars (US $1,000,000) to the highest scoring Contest Entry if no Grand Prize is awarded
Scoring: First Round 10 points, Second Round 20 points, Third Round 40 points, Fourth Round 80 points, Fifth Round 160 points, Championship Game 320 points

ARV: $1,000,000

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Good to Know:

One entry per person/account and KYC verification is required; big prizes are taxable and winners must complete verification and tax forms.

Frequently Asked Questions:

Is this sweepstakes free to enter?

Yes it is. Entry is completely free and done online with no purchase required.

How and when will the winner be notified?

Potential winners will be notified via email within approximately 30 days after the contest ends and must complete verification paperwork, an affidavit/release, and tax forms to claim a prize.

Not sure what a real winner notification looks like? See real examples of actual sweepstakes winner emails on our How to Know If You Won page.

Is this sweepstakes legitimate?

Yes, this contest is run by Kalshi and governed by official rules; winners are verified by the sponsor and must meet the rules before prizes are awarded.