There has never been a documented perfect bracket in the history of March Madness. And there likely never will be. According to the NCAA, the odds of someone correctly predicting all 63 basketball games are 1 in 9.2 quintillion—if you pick randomly. And what if you do research and make more informed selections? Your odds get slightly better: 1 in 120 billion. To put things in perspective, when the Powerball reached $1 billion in December 2025, the odds of winning were 1 in 292 million.
What’s the closest a bracket came to being perfect? In 2019 Gregg Nigl correctly selected the first 49 games but lost in the second game of the Sweet Sixteen round.