Forty thousand visitors and £18.9million profit over the 2013 TT races.
Those are the key findings from a report published by the Economic Affairs Division of Treasury.
The survey involved interviews with visitors in the boat and airport departure lounges.
During the fortnight 6,160 people were spoken to.Peter Hannay from Economic Affairs says the money will disperse into the Island's economy
Clip 1
RTC closes section of parliament street in Ramsey
Police dealing with an incident in the north
Residents call on government to improve on wet ink visa renewal stamp
Indian citizens waited four days in Amsterdam as IOM gov liaise with UK
UCM wins gold for marketing
Team recognised at prestigious event for further education
Reporting DOI whistleblowing cases to independent investigator would be 'unhelpful'
Senior officers say technical nature of the department would make it difficult
Nothing to fear from Conservation Area status says heritage campaigner
It just means greater care is taken with planning