As the Green Bay Packers made good on their quest for victory in Super Bowl XLV, they also validated the prediction of Chicago-based real estate firm Jones Lang LaSalle.

Super Bowl XLV - Image by Amy Harris/Corbis

“You can mark my words: the Packers will prevail,” Jones Lang LaSalle’s executive chairman Roger Staubach said last week.

Last night, the Green Bay Packers defeated the Pittsburg Steelers 31 to 25 at Cowboy Stadium for the Lombardi Trophy. In the midst of a botched National Anthem and an underrated half time show, InsideTV.ew.com reports the matchup may have been the most-viewed TV event in American history.

Jones Lang LaSalle used analysis of past Super Bowls and commercial real estate vacancies to make its prediction. According to the firm, the team whose city has the higher level of commercial real estate vacancies will most-often prevail.

This correlation has been accurate in eight of the past 11 NFL championships.