Has anyone ever had a perfect March Madness bracket? The odds are staggering

Do you think this might be the year you fill out a perfect March Madness bracket? The odds aren’t looking great.

Every year, college basketball fans fill out one (or several) March Madness brackets, guessing which teams will advance and ultimately be crowned the 2025 NCAA basketball champions.

However, filling out the perfect bracket is a feat no person has reached.

So, what are the odds of having a perfect bracket? Has anyone come close? And when do brackets open? Here’s everything you need to know ahead of March Madness.

Has anyone ever filled out a perfect March Madness bracket?

No one has ever submitted a verifiable perfect bracket for the NCAA March Madness tournament, per the NCAA website.

What are the odds of a perfect March Madness bracket?

According to the NCAA, the odds of predicting all 63 games correctly are 1 in 9,223,372,036,854,775,808 (or approximately 1 in 9.2 quintillion).

The odds are slightly better if you are familiar with college basketball: 1 in 120.2 billion.

An Ohio man holds the longest streak for the most accurate bracket

No person has completed a 100% correct March Madness bracket since the results have been tracked and verified by the NCAA. The closest anyone came to a perfect bracket was in 2019 when an Ohio man correctly selected the first 49 picks. His lucky streak ended after the Sweet 16, the longest since the NCAA began tracking brackets online in 2016.

When do March Madness brackets open?

Brackets open after all teams in the NCAA tournament have been set. March Madness teams will be announced on Selection Sunday, which is March 16.

When do March Madness brackets close?

Entries (and any changes to a bracket) must be finalized before the first rounds tip off Thursday, March 20, for the men and Friday, March 21, for the women.

All brackets lock at tip-off and cannot be changed, according to ESPN.