The One by the Canal - Half Marathon

Uxbridge, United Kingdom

Sunday, November 8, 2026

· In 10 days

Distance

21.1km

Start Time

09:30

Terrain

Trail

Difficulty

Beginner

Overview

A half marathon running event along the Grand Union Canal from Cowley to Watford. Participants enjoy beautiful canal-side scenery on a signed and marshalled trail route through multiple towns, with excellent organization and amenities.

Grand Union Canal scenery
Country trails and woodland paths
Canal-side views throughout the route

The practical side

Start / Finish

Start

Cowley Hall Recreation Ground, 47 Bullrush Grove, Cowley, Uxbridge UB8 2JW, UK

Finish

Cassiobury Park, Watford

Terrain

Trail route along canal with country trails and woodland paths

Route

Half marathon along the Grand Union Canal from Cowley to Watford. The signed and marshalled route follows the canal through Uxbridge, Denham, Harefield and Rickmansworth, featuring canal-side scenery along the UK's longest canal.

Race Day

Race day: Registration opens at 08:00, race starts at 09:30

Good to know

What you get

Finisher medal

Chip timing

Race photos

Event photography

Toilets

Food after the finishOn-site catering available

On the day

Toilets

Bag drop

Food vendors

Marshals on course

RecommendedWater bottle

Parking · FreeYes, participants can park at the finish (Cassiobury Park, Watford) prior to the event and take the pre-booked coach transfer to the start.

ShuttlePre-race coach transfer available from finish (Cassiobury Park, Watford) to start (Cowley Recreation Ground, Uxbridge). Must be pre-booked before race day.

Changing facilitiesInformation about changing facilities is not specified in the event details.

Aid stations · 4Approximately every 5km: Water in cups

Water on course · 4There will be four water stations approximately every 5km along the route.

Before you enter

Minimum ageRunners must be 17 years old or above to participate.

DogsNo, you can not run with your dog at this event.

HeadphonesNoise-cancelling headphones are not permitted during this event. The use of other earphones is discouraged but is allowed - participants must keep their music at a low enough volume to hear race instructions.