Isle of Man TT

Isle of Man Tourist Trophy
GenrePublic road race course
FrequencyAnnually, May–June
VenueIsle of Man TT Mountain Circuit
LocationIsle of Man
Inaugurated1907 (1907)
Previous event2025 Isle of Man TT
Next event2026 Isle of Man TT
Organised byACU Events Ltd
PeopleGary Thompson MBE BEM (clerk of the course)
SponsorIsle of Man Department for Enterprise (principle)

The Isle of Man TT (Tourist Trophy; sometimes TT) races are an annual motorcycle racing event held on the Isle of Man in May and June of mostly every year since its inaugural race in 1907. The two-week event is sanctioned by the Auto-Cycle Union, which also organises the event through its commercial arm known as Auto-Cycle Union Events Ltd. The Manx government owns the rights to and promotes the event.

The Isle of Man TT is a series of time-trial format races, run on public roads closed for racing. The event consists of one week of practice and qualifying sessions, followed by one week of racing. The closed public roads form the Snaefell Mountain Course, a 37.73-mile (60.72 km) route containing 219 turns that traverses through a mix of urban and rural areas. The event currently features 5 different classes of road racing, each competing in two races over the course of the racing week. Since the inaugural Isle of Man TT in 1907, the event has been held mostly every year since, with seasons being cancelled only due to war or disease outbreak. The TT has become part of the local culture and economy of the Isle of Man with more than 40,000 visitors annually traveling to the island for the event.