Report: Olympic Organizers Underestimated Costs

Massachusetts leaders have released a state-funded report analyzing Boston's now-failed bid for the 2024 Summer Olympics.

The 192-page report by the Brattle Group suggests local organizers underestimated construction costs for hosting the international event by as much as $970 million, among other things.

Boston 2024 had projected venue construction costs would total about $918 million out of a proposed $4.6 billion plan.

Gov. Charlie Baker and legislative leaders tapped the Cambridge-based consultancy in June to analyze Boston's proposal and its financial implications to the state. The report cost taxpayers $250,000.

Boston 2024 and the U.S. Olympic Committee announced on July 27 that they would to end the bid, just months after the USOC named Boston the nation's pick to go up against Paris, Rome and other international cities.