The race continued over this distance until 1988 when, faced with diminishing participation and little engagement from TV and sponsors, the event was run over a half-marathon course.
[4][5] This unusual distance proved unpopular with the elite athletes who the organisers had hoped to attract, and so two years later the race returned to the half marathon format.
[3][4] After the running of the 2016 event, a number of runners raised concerns that their GPS watches reported the route was shorter than the prescribed distance.
[7][9] The half marathon begins in George Square and immediately heads steeply up St. Vincent Street, going west through the city's commercial centre and Anderston.
Runners then join a sliproad of the M8 motorway and cross the River Clyde on the Kingston Bridge, part of which is closed to vehicle traffic for the Sunday morning of the event.