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London Duathlon 2020

Event details
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Compete in the world's largest duathlon at London's iconic Richmond Park. With 4 courses to choose from: the half, the full, the relay and the ultra there truly is a distance for everyone. Sign up for the vibrant race atmosphere or for your first duathlon.

Review summary

6 Reviews
  • Course
  • Organisation
  • Atmosphere


Graham B
"This was a big thing for me. Having done only one very small Duathlon last..."


Leo K
"This was such an awesome event. It was my first ever Duathlon! It’s like a..."


"I cannot recomened this enough. It was the best event I have done this year or..."
See all reviews

How to enter the London Duathlon 2020

  1. Ultra Duathlon

    Duathlon: Run 20km, Bike 77km, Run 10km
    Event passed
  2. Full Duathlon

    Duathlon: Run 10km, Bike 44km, Run 5km
    Event passed
  3. Half Duathlon

    Duathlon: Run 5km, Bike 22km, Run 5km
    Event passed
  4. Team Duathlon

    Duathlon: Run 10km, Bike 44km, Run 5km
    Event passed

London Duathlon 2020 routes

The London Duathlon takes place in London's Richmond Park and is the largest event of its kind in the world. There are 4 different distances to choose from, details of which can be found below:

Half Duathlon - Run 5km, Bike 22km, Run 5km
Full Duathlon - Run 10km, Bike 44km, Run 5km
Duathlon Relay - Run 10km, Bike 44km, Run 5km
Ultra Duathlon - Run 20km, Bike 77km, Run 10km

Event Details

What’s Included
  • Water stations throughout the course
  • Distance marked
  • Course marshalled
  • Finisher's medal
  • Chip timed
  • Toilets onsite
Raceday Logistics


0730: Event Village Opens

0930: Ultra Starts

0945: Duathlon Wave 1 Start

1030: Wave 2 & Relay Start

1215: Half Duathlon Start

1800: Event Village closes

Please arrive at least 60 minutes before your scheduled race start to ensure there is plenty of time to get your gear set up in the correct row.

Kit List
  • Descente London Duathlon cycling jersey or running top
  • Leggings/shorts and socks
  • Running shoes and cycle shoes (if you have them)
  • Change of clothes for after
  • Bike water bottle(s) full
  • Spare inner tube, tyre levers, pump, bike tools
  • Race bib number attached to your race belt or top with your medical info complete
  • Bike bib number attached with cable ties
  • Transition wristband
  • Bike and helmet (with stickers attached)
  • 1 bag/box for transition area (max 50x50x50cm or 30L)
  • Car park pass (in your race pack if purchased)
    Check your journey and weather forecast (there are some planned engineering works on SW Trains lines)

Frequently Asked Questions

Is there an age limit for the London Duathlon 2020?
All entrants must be at least 18 years old on Sunday 6 September 2020 to take part.
When will I receive my race number and pack for the London Duathlon 2020?
Race numbers, bike and helmet stickers, electronic timing chip and security band will be posted to participants two weeks before the event. If you have not received your race pack by Friday 28 August please get in touch with [email protected]
Are there water stations during the London Duathlon 2020?
There will be a number of water stations during each distance respectively. There will be water stations on the bike route but only for the Ultra participants - it is your responsibility to ensure that you have enough fluid to keep yourself hydrated on the bike leg.

London Duathlon 2020 weather forecast

Partly cloudy throughout the day.

Predicted highs
Predicted lows
IconLight breeze possible, up to 8mph

Meet the organiser

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We work with leading brands, engaging their audiences through active experiences. Providing a platform for meaningful real-life connections we create and deliver campaigns with guaranteed results. From insight-led big ideas to strategy to execution, with over 25 years’ experience, we are the agency of the Active World. Our work with global brands such as Nike, J.P.Morgan, Royal Bank of Canada and ESPN Digital allows us to create and deliver campaigns around the world.



London Duathlon 2020 reviews (6)

4.9 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • G

    Graham B

    Did the Full Duathlon in 2019

    This was a big thing for me. Having done only one very small Duathlon last year, I was a bag of nerves! I got myself a parking space at sheen gate and my first impression was, where do I go? Once in the village, I still felt very underwhelmed by the whole thing. Anyway, started the first run and the organisation and marshals started to make me feel more at ease. Loved the cycling part, very exhilarating course, yet challenging! Final run went better than planned. Once I crossed the line I was so pumped!! Loved it!! Amazing event in stunning area!! Can’t wait to do it all again!! Highly recommend!!!!
  • Did the Full Duathlon in 2019

    This was such an awesome event. It was my first ever Duathlon! It’s like a triathlon where you don’t get freezing cold and wet at the beginning. Will deff be signing up for 2020.
  • C


    Did the Full Duathlon in 2019

    I cannot recomened this enough. It was the best event I have done this year or maybe ever! Very well organised and what a beautiful location. I will be back!
  • Did the Full Duathlon in 2017

    I really enjoyed this event and it is one of the more interesting and demanding duathlons I think. I did find it quite expensive, as race entries go, however the organisation is very good, and it is an amazing chance to enjoy Richmond Park when it's completely closed to traffic. I would definitely recommend doing this event at least once. The best thing about the event was the atmosphere, the set up looks very professional and there is really good support, crowds and event village so it feels amazing to zoom through the barriers on your bike each lap, and also the finish chute from the run at the end. Also - having cycled around Richmond Park many, many times before, I expected the laps (being quite undulating and hilly) to feel like hard going, but the fact that it was traffic-free and the great atmosphere made it a surprisingly fast course!
  • Did the Ultra Duathlon in 2018

    Absolutely loved it. If you want an event to really push yourself an Ultra Duathlon is the one.It is a little repetitive doing laps of Richmond Park but actually knowing where you are, what you have coming up and how long to go is helpful.The last 10k is the hardest thing i've done so the sense of accomplishment was awesome!!!Event is set up well, transition areas are good.So local to London means easy for friends and family to come and watch
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