The guys at numberFire who bring us the NERD Rankings for NBA players and teams each week have set their sights on college hoops, and are ready to help you win your bracket pool. Plus, numberFire has teamed up with StubHub to give away a $100,000 grand prize and more. Entry is totally free, so check out all the details and get to picking winners:

The numberFire March Radness Challenge is the best way to get your friends together in a March Madness bracket pool. This is the only bracket game that provides numberFire’s projections for game outcomes inside the brackets—they’re 70% on game winners over the past 10 years of March Madness picks. It’s also the only game that StubHub is prizing with $50 gift certificates for the winners. All totally free to play. There’s really no downside, so get in the game at MarchRadnessChallenge.com!