According to the NCAA, the odds of a perfect bracket increase, in theory, to about 1 in 120 billion if you apply logic. That includes picking favorites. The closest known attempt was a bracket that remained perfect through the first 49 games in 2019. It was a remarkable bracket, but it was still light years away from perfection.

Selection Sunday will be here before you know it, officially starting March Madness. What to know about NCAA men's and women's tournament schedules.