The Ballacrye corner was part of the 37.50 Mile
Four Inch Course used for automobile racing for the RAC Tourist Trophy car races held between 1906 and 1922. In
1911, the Four Inch Course for automobiles was first used by the Auto-Cycling Union for the
Isle of Man TT motorcycle races. This included Ballacrye Corner and the nearby Ballacrye jump and the course later became known as the 37.73 mile
Isle of Man TT Mountain Course which has been used since 1911 for the
Isle of Man TT Races and from 1923 for the
Manx Grand Prix races. During practice for the
1953 Isle of Man TT races,
John Surtees crashed near to Ballacrye, suffering an injury which forced him to withdraw from his first Isle of Man TT races. ==Sources==