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Down Tow Up Flow Half Marathon - July

Run 13.1mi
Event details
  • (This event has been cancelled)
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Race in this point-to-point half marathon along the Thames towpath. Great for newcomers and for seasoned pros alike, the route will kick off in Windsor before winding its way along the Thames and finishing in Marlow. Come for the beautiful surroundings or for the prized finisher's medal.

Review summary

12 Reviews
  • Course
  • Organisation
  • Atmosphere


neha v
"I do think adding fresh fruit ( orange slices ) could be very helpful to the..."


Stewart J
"Very well organised, beautiful course but not one for the hard-core runner..."


Phil B
"First time I have participated and I thoroughly enjoyed the course, the route..."
See all reviews

Down Tow Up Flow Half Marathon - July route

This course is mixed terrain, with the majority being run along river towpaths and tracks, as well some road sections.

It is an extremely flat course, which runs point to point along the Thames. Starting in Windsor and ending in Marlow, runners will pass by Bourne End, Cookham, and Maidenhead.

To ensure the course is not congested the runners will be released in waves, which are detailed below:

Wave 1 will start at 10:00am
Wave 2 will start at 10:05am
Wave 3 will start at 10:10 am
Wave 4 will start at 10:15am

These waves will be communicated to entrants closer to the time.

Event Details

What’s Included
  • Chip timed
  • Course marshalled
  • Goody bag after the race
  • Refreshment stations
  • Bespoke finisher's medal
  • Prizes for top 3 men and women in the main event as well as the winners of each veteran category (V40, V50, V60, V70)
  • A pair of running shoes from Newton Running for the Male and Female winners
  • Coffee and sacks post-race
Raceday Logistics


0830 - 0945: Registration
1000: Race start time

Please arrive at least 45 minutes prior to the race time in order to ensure a smooth registration process. Race numbers will be collected on the day only.


Aside from the start & finish, there are various good viewing points for spectators along the way, which are detailed below:

Bourne End – Spade Oak is a great place to cheer on. There is a car park at the bottom of Coldmoorholme Lane, then it is a very short walk across the railway line to the riverside

Cookham – park by the green (near to the Crown Pub) and walk across the grass to the towpath.

Maidenhead – park in the public car park at the upper end of Ray Mead Road and walk across the road to the river. Alternatively park in the car park at the lower end of Ray Mead Road near to the Maidenhead Bridge and wait just before the bridge.


If you would like to find out more information about volunteering positions, then please get in touch with Race Organiser at: [email protected]

Frequently Asked Questions

Can I bring a Buggy/Pushchair?
This race is not suitable for runners with buggies/pushchairs.
Is this race suitable for wheelchair users?
This race is not suitable for wheelchair users. You may be asked to start at the front of the field 5-10 minutes before the scheduled start time and be vigilant of other runners overtaking during the race.
Can I run with Earphones/Headphones?
Noise-cancelling earphones/headphones are prohibited and whilst we discourage the use of other earphones/headphones at the event, participants choosing to use them should ensure they are set to a minimum volume such that instructions from marshals or other race officials can be clearly understood. The race organisers reserve the right to disqualify participants who cannot hear instructions as a result of their use.
Does this event have a time-limit?
Whilst there is no strict time-limit for this race, in order that we adhere to the restrictions imposed by the venue hire agreement, it may be necessary for us to begin deconstruction of the registration/finish area(s) after approximately 3 hours to facilitate the removal of all equipment from the premises by the agreed time.
Does it cost more to enter on the day?
Subject to a £3 surcharge (cash only, subject to availability).

Down Tow Up Flow Half Marathon - July weather forecast

Rain throughout the day.

Predicted highs
Predicted lows
IconHigh chance of rain
IconModerate breeze possible, up to 12mph

Meet the organiser

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.



Down Tow Up Flow Half Marathon - July reviews (12)

4.4 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • P

    Phil B

    Did the Half Marathon in 2019

    First time I have participated and I thoroughly enjoyed the course, the route marshals were positive throughout. I'll be back next time. Thank You!
  • Did the Half Marathon in 2019

    After much faffing about logistics we booked the coach transfer to the start. This was so easy that I couldn't believe how complicated we had tried to make it!
    Quick and easy registration and this was all in the same area as the baggage drop, the coffee van, the loo's & the start. Fantastic!
    The route was fab and the marshalls were all friendly and encouraging.
    Lovely medal at the end, with a banana, a bottle of water, haribo and even a sack of Epsom Salts! Windsor was fab place to wander around afterwards. We had a hot drink, lunch & an icecream in the park and by the river.
    A wonderful day was had by all - thank you!
  • H

    Hilary savage

    Did the Half Marathon in 2019

    our times were wrong we were put in wrong waves despite email confirming our times. parking was quoted as £6 it was in fact 14 we had only taken the right money.
    at the finish they called my husband over as he was in the wrong sex category
  • Did the Half Marathon in 2018

    It's a beautiful course along the river. Would definitely do it again. Despite the fact it was hot and I hadn't really trained, I managed a good time. Would highly recommend.
  • Did the Half Marathon in 2018

    Very well organised, beautiful course but not one for the hard-core runner wanting that PB - course very varied,some steps,bridges etc. Would definitely recommend.
  • Did the Half Marathon in 2018

    I do think adding fresh fruit ( orange slices ) could be very helpful to the participants instead of Haribos... I also was hoping the timing would've been tracked so that I could know how I did through the race.. and not just my finishing time.. if I had known in advance I would've tracked it myself...
  • Did the Half Marathon in 2018

    The course was epic. Marshalls were helpful and very encouraging. However, I was a little disappointed by the lack of a banana at the end. Sweets just aren't as good!
  • Did the Half Marathon in 2018

    lovely route just take in to consideration that there is a bit of stopping and starting along the route as its very busy with walkers walkers..gates and few roads to cross
  • Did the Half Marathon in 2018

    Brilliantly organised course, the waves were a rest idea and helped to deter congestion. Enough toilets with well stocked hand gel and toilet paper. Only disappointment was the goody bag. There wasnt one just water a can of energy drink small packet of Haribo and a medal. As its a summer run a nice finishers vest top would have been a lovely touch!
  • Did the Half Marathon in 2018

    Great run altogether, would thoroughly recommend!Main thing to be aware of is there are only 4 water stations along the way, providing water cups (not bottles). I recommend bringing your own handheld or backpack water if the weather is hot!
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