The Quicken Loans bracket game has people fill out a bracket and try to pick the winner of every game of the NCAA tournament correctly.
The challenge includes a $1 billion prize for a perfect bracket, which will be split if two or more people get perfect brackets.
Prize money is still available even if no one gets a perfect bracket.
Those who end up ranked in the top 20, based on the number of games they got correct and including some tiebreakers, win $100,000 each. However, this prize will reportedly come in the form of either paying off a person’s mortgage or going toward a new home.
Quicken Loans teams up with Warren Buffett for the challenge, which has slim odds of getting a perfect bracket–9,223,372,036,854,775,808 to 1.
The company gets to generate new leads for their services because everyone who signs up is opted in unless they opt out. Even if they opt out, they have to answer questions about home ownership and mortgages during the registration process.
Yahoo also benefits because participants have to sign up with a Yahoo account.
The challenge was only open to the first 15 million people who signed up.
It’s unclear at this point how many have signed up.