The deadline for submitting March Madness brackets is usually just before the start of the tournament’s first game.
When are March Madness brackets due? Time is running out to send in your NCAA basketball picks
Participating in a bracket challenge requires you to prepare and submit your picks before the tip-off of the opening game. The deadline for submission can vary depending on the platform or organization hosting the contest, and it’s crucial to check the specific rules and guidelines provided by the organizers to avoid missing out. Missing the deadline could mean forfeiting the opportunity to participate in one of the most exhilarating sporting events of the year and potentially winning prizes.
THE BRACKET 🤩
— NCAA March Madness (@MarchMadnessMBB) March 15, 2026
Fill out yours: https://t.co/Jt9eXr7f5T pic.twitter.com/9g8ciMYUhv
It’s important to know that most bracket challenges have a set deadline that participants must adhere to. The deadline is usually established to allow the organizers to process the entries and finalize the matchups before the start of the tournament. The exact deadline can vary from contest to contest, so it’s essential to check the specific rules and guidelines the organizers provide.
The common rule is that no brackets will be accepted after the start of the tournament’s first round of matches, which is Thursday, March 19 at noon ET.
Moreover, participants must ensure that their picks are finalized before the deadline. Once the deadline has passed, the organizers usually do not accept late entries, and it’s too late to make any changes to your picks. Therefore, it’s essential to set a reminder and ensure you submit your picks before the deadline, which falls on March 19 this year at noon ET.
Gunnar Henderson's bracket!
— NCAA March Madness (@MarchMadnessMBB) March 18, 2026
Louisville ➡️ Final Four 👀
McNeese > Vandy 🤫
Florida goes back-to-back 🐊 #MarchMadness pic.twitter.com/l0SYQ28Mnl
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