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The One
by the Canal

The One by the Canal is an intricate trail run starting in Cowley and following the Grand Union Canal with its beautiful nature and finishing in Watford. Go for this scenic Half Marathon and enjoy the run!

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THE ONE NOT TO MISS.

DATE

November 9, 2025

LOCATION

Cowley Rec, Cowley

DISTANCES

Half Marathon

RACES

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Half Marathon

£33 - £35
individuals
age 17+

Race maps

Please see our interactive routes maps with the full routes by distance including water stations and other facilities here:

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Your entry includes

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Finisher Medal

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Refreshments

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Chip Timing

EVENT IN PHOTOS

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EVENT
INFORMATION

Village Location

For the closest postcode please navigate to the following address and then follow the event signage:

Start Location - Cowley Rec, High Street, Cowley, UB8 2DZ

What3Words: ///dock.method.chart

Finish Location - Cassiobury Park, Gade Ave, Watford, WD18 7LG

What3Words: ///palm.tribal.meals

Start Times

Half Marathon: 10:00am

Race Pack Collection

You can collect your race number from 08:00am at the event village in the Registration Tent.

Participants should not expect to receive anything by mail.

Registration on the day might be available.

Coach

A pre-race coach transfer is available from the finish (Cassiobury Park, Watford) to the start (Cowley Recreation Ground, Uxbridge). Park your car at the finish prior to the event, take our coach to the start and have your car waiting for you when you cross the finish line.
Further information with respect to the logistics and times of these transfers will be communicated closer to the event but places must be pre-booked, on the day requests will not be available. There are no transport options provided after the event.

The Route

All run courses are marked with signs and well marshalled.

The race takes you along a country trails, woodland paths.

The course map is available to view here.

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Pre-Race Email

Detailed pre-race information will be published to all registered participants 1 week prior to the event.

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FACILITIES

Medical Cover

Suitable medical cover is provided at our events in case of a medical emergency.

Bag Drop

You can leave any clothing, bags, keys and phones at our bag drop. Your race number has a tear-off strip on the bottom that should be attached to anything you leave with us.

Catering

We will have a food caterer onsite for pre and post race refreshments.

Photography

Event images are expected to be available, usually within 24 hours of the event.

Toilets

There are free portable toilets in the event village. This is your only chance to go, as there won't be toilets on the route.

Changing Room / Showers

There are no dedicated changing rooms/showers.

Water / Snack Stations

There will be four water stations on the route, approximately every 5k. Water will be in cups.
There will also be water available in the event village to fill water bottles (which we encourage).

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OTHER USEFUL INFORMATION

Spectators

Spectators are permitted anywhere in the start area, finish area or around the route. Please be mindful of others' comfort and safety in more popular locations, including the finish area.

Dogs

Participants must not be accompanied by a personally owned or controlled dog during an event. Entries may be accepted from participants with medical assistance dogs, subject to them being correctly registered and identifiable as such, and subject to prior approval by the Event Director.

Buggies, Pushchairs and Strollers

This event is not suitable for buggies, pushchairs, strollers (or similar) due to the nature of the terrain.

Wheelchairs

This event is not suitable for wheelchair users due to the nature of the terrain.

Earphones / Headphones

Noise-cancelling earphones/headphones are prohibited and, whilst we discourage the use of other earphones/headphones in running events, participants choosing to use them should ensure they are set to a low enough volume that instructions from event officials can be clearly understood. 

Race Deferrals

Race deferrals are allowed until the event registration is closed (usually the Friday 12noon before the event date).

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