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Grand Union Canal Half Marathon – November

Run 13.1mi
Event details
  • (This event has been cancelled)
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Take part in this superb point to point race. Great for beginner and veteran runners alike, the course follows the Grand Union Canal from Uxbridge to Watford. Come for the physical challenge or for the finisher's medal.

Review summary

12 Reviews
  • Course
  • Organisation
  • Atmosphere


Johil J
"Great event, enthusiastic and supportive marshals and incredibly well..."


Donal H
"What a beautiful run and lovely marshals and support. Puddles aplenty to avoid..."


Chris M
"Clear instructions to get to the start. Scenic route, was quite tough with a..."
See all reviews

Grand Union Canal Half Marathon – November route

The route of this point to point race tracks the Grand Union Canal from Uxbridge to Cassiobury Park in Watford.

The course is flat and incredibly scenic. The majority of the run will be mainly on canal towpaths, however these will not closed to the public so please always be vigilant of other runners, spectators, dogs, cyclists and other users of public footpaths and rights of way.

To avoid congestion runners will be started in waves several minutes apart.

Event Details


What’s Included
  • Chip Timed Event
  • Marshalled Course
  • Finisher's Medal
  • Refreshment Stations
  • Aid Stations
  • Post Race Goody Bag
Raceday Logistics


08:30-09:45- Registration
10:00 - Race Start

Please arrive at least 45 minutes before the race in order to collect your race number and timing chip and to drop your bag.

Kit List

For safety reasons, it is suggested that you run without music so you can stay alert and aware of your surroundings and other runners. This way you can also soak up the energy and atmosphere and unplug!


All spectators welcome. The start and finish areas will be the best vantage point from which to view the runners.


If you would like to volunteer for this event, please contact [email protected]

Frequently Asked Questions

Can I bring a buggy/pushchair?
This race is not suitable for runners with buggies/pushchairs.
Is there a minimum age requirement to take part?
Runners must 17 years old to compete.
Is there a time limit?
There is a time limit of 3 hours.
Are there toilets and changing facilities available?
There will be toilets available to use at the start and finish.
Will there be a bag drop?
There will be a bag drop available, but it is recommended you bring as little baggage as possible. Bags will be transferred on your behalf.

Grand Union Canal Half Marathon – November weather forecast

Drizzle throughout the day.

Predicted highs
Predicted lows
IconHigh chance of rain
IconLight breeze possible, up to 8mph

Meet the organiser

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The Race Organiser creates outstanding opportunities for people to bring out their best run, swim or cycle performance. We seek out the most inspiring and rewarding locations, develop race routes and event formats, and create a brilliant atmosphere and race day experience – offered at the best possible value. We don’t think it’s ok to ask people who are aspiring to do amazing things to pay huge sums of money, so we charge as little as we can afford, rather than as much as we can get away with.



Grand Union Canal Half Marathon – November reviews (12)

4.6 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • E

    Ed L

    Did the Half Marathon in 2019

    This was a cracking run along the canal. I'll definitely be doing it again next year. Loved the autumnal trees/colours/barges with their wood burners - would do this route even if it wasn't as the event. Marshals were fantastic and organisation was excellent. Parked at the finish and got a warm coach to the start. Would recommend highly.
  • L

    Leah A

    Did the Half Marathon in 2019

    A well organised race and such a nice course. It's a great race to get a good time in as it is so flat. Perfect for your first 1/2 marathon. If it has been raining previously wear trail shoes! It gets super muddy.
  • Did the Half Marathon in 2019

    This is a point to point run along the canal from Uxbridge to Watford. I paid extra for the coach from Watford, the organisation was superb, With more of the same and a nice atmosphere on arrival at Uxbridge. The run along the canal at this time of year was beautiful, and the rare sun kept us warm for most of the route. I’ve already signed up for their Spring run!
  • Did the Half Marathon in 2019

    Despite my initial concerns about the narrow path and overcrowding, it was reasonably easy to move to overtake if needed (or be overtaken in my case!), which was made possible as groups of runners were set off in waves, there were around 450 people running.

    The course itself was beautiful running alongside the canal, although we had lovely Autumnal weather, due to heavy rain the day before the path had plenty of puddles so had to do lots of zig-zagging and jumping. One highlight I saw was a massive heron swooping in the opposite direction. A couple of words of warning: You do need to be considerate of walkers as you don’t have exclusive use of the path, and the race finishes on an uphill, just what you want at an end of 13.1 miles running!

  • Did the Half Marathon in 2019

    Clear instructions to get to the start. Scenic route, was quite tough with a lot of mud. Some difficulties in overtaking as some paths were quite narrow, especially with pedestrians using the route too.
  • C

    Catherine G

    Did the Half Marathon in 2019

    Enjoyed every minute!! Great communication, organisation and very beautiful running along the canal :)
  • Did the Half Marathon in 2018

    A spectacular route up the canal in beautiful weather after a respectfully observed minutes silence.All the marshalls were incredibly friendly and regular water points were great.I wore road flats but trail shoes might have been better on some of the muddier parts.Thank you for a top Sunday morning run!
  • Did the Half Marathon in 2018

    Although we had clear weather for the run, it had rained a lot in the days previously, and so the towpath was muddy in places with large puddles pretty much everywhere. It was definitely still safe, but that made it a harder run than I was anticipating. Although it is mostly flat, there are steep short slopes around locks and bridges which are also sapping (particularly because you don't always get a downhill to go with the up). The finish is after a long climb as well.
  • Did the Half Marathon in 2018

    What a beautiful run and lovely marshals and support. Puddles aplenty to avoid but that was part of the fun.
  • Did the Half Marathon in 2018

    Great event, enthusiastic and supportive marshals and incredibly well organised. The route is incredibly flat except the last km which was pretty torturous for a first time running a half marathon, but I guess it gave me something to talk about on the way home. We were unfortunate to have a down pour the evening before so half the run was dodging puddles and at times running through sludge but this can't be held against the organisers, it was just bad luck.Only very slight issue I had was finding the parking for the event. The car park was quite a distance from the start line (not really an issue) and from the direction we approached along the long road given by the post code it wasn't until the turning when any sign for parking was visible.
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