In-person sports betting is now underway at Wrigley Field. The Draft Kings bar and restaurant in Wrigleyville opened last Summer, but Friday marks the start of actual betting at the sports book location, just in time for Big Ten basketball tournament play.

March Madness is one of the biggest times of the year for sports betting. With the Big Ten tournament this weekend, lots of fans have bene betting on the two Illinois teams, Northwestern and Illinois.

Americans are predicted to bet nearly $3 billion on March Madness. That is about twice as much as they bet on the Super Bowl, according to the American Gaming Association.