The Isle of Man's centenary TT festival is estimated to have contributed about £48m to the island's economy.
Visitors to the TT races boosted the Manx economy by £48m
Figures released by the Department of Tourism and Leisure revealed the 60,000 people who attended this year's races each spent an estimated £800.
Research also showed that 13,800 people who attended the races - 23% - were first time visitors to the island.
This year's success has led to an increase in early bookings for the 2008 races, a government spokesman said.
"This years' Centenary TT races delivered record revenue to the Isle of Man economy, outstripping even the most optimistic pre-event predictions," the spokesman added.
Statistics revealed that 82% of the visitors were male with 74% under 50 and 20% under 35.
The findings also showed that for many visitors riding the course was the favourite part of the event, with 90% claiming this was their highlight.
The overall TT experience was rated "good" or "excellent" by 87% of fans, with over 80% of the 60,000 saying they definitely planned to visit again.