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Grand Union Canal 145 Mile (GUCR)

London, United Kingdom • 23-25 May 2026

Grand Union Canal Race (GUCR) is a 145-mile non-stop ultramarathon along the Grand Union Canal Towpath from Gas Street Basin, Birmingham to Little Venice, London. Dubbed “The Long Run” and regarded by many as Britain’s premier ultra, the race follows a way-marked, flat towpath through urban and rural scenery. It is a low-key, not-for-profit event organized by Canalrace C.I.C., with no entry qualifications beyond being over 20 and able to pace a 45-hour finish. About 100 starters are accepted by draw. Features include feed stations every 10–15 miles, support for crews, transport for retirees, and clear cut-offs, launching the Canalslam series. Visit the organization's website for the most recent information.

United Kingdom London London

Race information

Website
145 mi
Finish Little Venice, London
133 mi
Cp9 Hambrough Tavern, Southall
120 mi
Cp8 Springwell Lock, Rickmansworth
99 mi
Cp7 Tring Reservoirs, Startop's End Car Park
85 mi
Cp6 Bridge 99, Water Eaton
71 mi
Cp5 Cosgrove Village Hall
53 mi
Cp4 Heart of England, Weedon
36 mi
Cp3 Birdingbury Bridge, Calias Lane
22 mi
Cp2 Hatton Locks
11 mi
Cp1 Catherine de Barnes
Start
Visit the organization's website for the most recent information.
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