Final Four Betting: March Madness Tops Super Bowl, Report Says

We knew that betting on March Madness was big. But we're getting more evidence that it's Super Bowl big.

Betting on the NCAA Tournament has surpassed the pro football extravaganza in legal wagering totals, according to USA Today. Indeed, the first four days of the tournament alone approach the Super Bowl's betting handle, according to the article.

The newspaper's findings emerge just days before Louisville, Kentucky, Ohio State and Kansas square off in the Final Four on Saturday. The championship game is Monday.

Now remember that's all the on-the-level transactions in Nevada. Off-the-grid office pools and shady offshore outfits contribute to Americans illegally betting $2.5 billion on the NCAA Tournament each year, the FBI estimates.

In another indication of the tournament's greater allure for gamblers, a Vault survey found that 65 percent of office workers participate in a workplace March Madness pool, compared to 58 percent for the Super Bowl.

At least all that money changing hands is good for office morale. One psychologist told The Huffington Post that office pools build teamwork. Yay, team!