Win a Trip to Mars with X's Bracket Challenge presented by Uber Eats

X Bracket Challenge: Win a Trip to Mars or Up to $250,000 in Cash

How to Win Big in the X Bracket Challenge: From Cash to a Trip to Mars

March Madness is back, and this year, X is taking it to the next level with their 2025 Bracket Challenge. Launched on March 16, 2025, in collaboration with Uber Eats and SpaceX, this free-to-enter contest offers hoops fans a shot at $250,000, a trip to Mars, and more. Whether you’re a basketball guru or a space enthusiast, here’s your guide to winning big.

How to Enter the X Bracket Challenge presented by Uber Eats

In the X Bracket Challenge, you'll predict the winners of the 2025 NCAA Men’s Basketball Tournament, from the Round of 64 all the way to the National Championship—a total of 63 games. You’ll submit your bracket via X, track your progress on live leaderboards, and compete against fans nationwide.

1. Sign Up for an X Account – If you don’t already have one, create a free X account.
2. Join the Bracket Challenge – Navigate to the Bracket Challenge page on X's website or mobile app.
3. Fill Out Your Bracket – Before the tournament starts, select winners for all the games from the First Round to the National Championship.
4. Submit and Track – Once your bracket is set, submit it before the deadline on Thursday morning and track your progress throughout March Madness.

X Bracket Challenge Prizes

X isn’t messing around with the rewards. Here’s what you’re playing for:

Grand Prize (Perfect Bracket): Nail every single game, and you choose between:

• A future trip to Mars aboard SpaceX’s Starship (date TBD—space travel’s still cooking!).
• OR $250,000 cash plus SpaceX goodies: a year of free Starlink internet (kit purchase required), a day of astronaut training, sending an item to space on a Falcon 9, and VIP seats to a Starship launch.

First Runner-Up:

• If no one is perfect, the best bracket wins $100,000.

Fantasy Game Prizes:

• Four winners of bonus fantasy games during the tournament each snag $10,000.

Participation Bonus:

• Just for entering, you get one free month of Starlink service (kit purchase needed).

Has Anyone Ever Predicted the Perfect March Madness Bracket?

The perfect bracket remains elusive, even after all these years. However, in 2019, a man from Ohio came remarkably close, correctly predicting 49 picks and making it past the Sweet 16. If you can match—or even surpass—this feat, you’ll be in the running for a massive prize!

March Madness Odds

If you're looking for the latest March Madness odds for 2025, then head over to the March Madness oddschecker page to keep up to date with all the latest.

When Does the X Bracket Challenge Lock?

The 2025 X Bracket Challenge will lock on Thursday, March 20, before tip-off in the first game.