Grand Union Canal 145 Mile (GUCR)
Birmingham, United Kingdom • 23-25 May 2026
Grand Union Canal 145 Mile Race
The Grand Union Canal 145 Mile Race (GUCR) is a non-stop ultramarathon beginning at Gas Street Basin in Birmingham and finishing at Little Venice in London. The route follows the waymarked Grand Union Canal Towpath, offering a flat course through a variety of urban and rural landscapes. The event is held under UK Athletics rules and is organized by Canalrace C.I.C.
There are no formal entry qualifications for this race, and it is open to anyone aged 20 or older. Participants can choose between two entry categories:
- 145 miles
Supported runners provide their own crew, while unsupported runners are looked after by the organizers. A limited number of 75 places are available for unsupported runners. The event has an overall time limit of 45 hours, and cut-off times at checkpoints are based on this limit.
Regular support points providing snacks and drinks are located every 10-15 miles along the course. Buddy runners are permitted to join participants on foot from the 75-mile point onward. While there is no medical crew on the course, the organizers provide transport to the nearest railway station for participants who withdraw from the race. Places are primarily allocated through a lottery system held in November. Visit the organization's website for the most recent information.