Drop in Snaefell Mountain Railway users
Figures show almost 200,000 bus journeys were taken during this year's TT fortnight.
Bus Vannin says it's a record number - and an increase of 10% on the 2016 festival.
Ticket revenue on the buses exceeded £230,000.
But this year's washout weather led to a drop in the number of passengers who took the Snaefell Mountain Railway.
The busiest day of the fortnight for bus passengers was Tuesday of race week (6 June), when 18,000 people got on board.