NCAA.com (Feb. 13) – How hard is it to pick the perfect March Madness bracket? DePaul University professor of mathematics Jeffrey Bergen says the chance of someone filling out a perfect bracket is 1 in 9,223,372,036,854,775,808. Arash Khatibi, a graduate adviser at Illinois, worked with professors Sheldon H. Jacobson and Douglas M. King to crunch numbers similar to Bergen’s.