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Thames Valley Spring Duathlon

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Tickets £45–£55

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Take part in this fast and flat duathlon at one of the homes of the 2012 London Olympic Games. Great for first time participants and experienced racers alike, the course loops around the picturesque lake. Come to try for a PB or for the gorgeous scenery.

How to enter the Thames Valley Spring Duathlon

  1. Olympic Duathlon

    Duathlon: Run 10km, Bike 40km, Run 5km
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  2. Sprint Duathlon

    Duathlon: Run 5km, Bike 20km, Run 5km
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  3. Super Sprint Duathlon

    Duathlon: Run 2.5km, Bike 12km, Run 2.5km
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Thames Valley Spring Duathlon routes

First Run Course

  • The run will be an out and back loop measuring 2.5km.
  • The Super Sprint Duathlon run will be 1 loop, the Sprint Duathlon run will be 2 loops and the Olympic Duathlon run will be 4 loops.
  • Once completed, competitors will proceed into the RUN IN entrance of the transition area.

Bike Course

  • The course consists of approx. 5km laps up and down the side of the famous lake.
  • Super Sprint Duathlon will complete 2 laps, the Sprint Duathlon will complete 4 laps and the Standard Duathlon will complete 8 laps.
  • Please note that it is the competitors responsibility to count the number of laps they have ridden.

Final Run Course

  • The final run course is once again an out and back loop equal to 2.5km.
  • The Super Sprint distance will be 1 loop and the Sprint & the Olympic distances will be 2 loops.

Event Details

What’s Included
  • Free car parking
  • Marshalled course
  • Chip timed event
  • Bag drop
  • Medal
  • Prizes for 1st, 2nd, 3rd overall male and female, 1st Junior male and female, 1st Vet male and female
  • Refreshment stations
  • Ambulance services
Raceday Logistics

The race will begin at 0800.

Please arrive 60 minutes before the start of the race in order to register and rack your bike.

At registration you will receive:

- Bib number: to be worn on the front when you are running and back when you are biking. It is recommended to wear an elastic race belt.

- Depending on the number of competitions, you may be asked to have your event number written on your hand. Staff to write your number in permanent market that washes off skin.

- Bike number: to be stuck on your bike seat post.

- Helmet number: to be stuck on the front of your helmet.

- Timing chip: this is supplied with a velcro band to secure to your ankle and not your wrist!

Kit List

Duathlon competitors are expected to supply their own bike which is in good working order.

Helmets are also compulsory.


With the race set at the scenic Dorney Lake, it's the perfect place for spectators and family to attend and soak up the atmosphere! Food and drinks will also be available through the catering facilities, plus fun and games for kids of all ages!


The volunteers are what make this event special. If you would like to join this superb team of people, please email [email protected]

In return F3 events will offer you:

  • Free entries for yourself or a family member
  • Free food and drink provided at the event
  • Event clothing

How do I receive my race number?

Race numbers should be collected on the day as well as your timing chip.

Where can I find my results?

The results will be posted on F3 events website directly after the race. You will also receive a results email which will be sent to your email address after the event.

Is there an age limit?

Competitors will need to be 17 years old on the day of the event

Questions & answers

Get answers from our team or a member of our dedicated community.

What would you like to know about this event?
  • P

    Patrick H
    Hi there, myself and x2 others are planning on competing in the really race. How many teams generally take part in this race, i.e. 10k, 40k, 5k version?


    Steph E
    Hi there. Just to let you know that there are usually about 200 people running in this race.

Thames Valley Spring Duathlon weather forecast

Drizzle throughout the day.

Predicted highs
Predicted lows
IconHigh chance of rain
IconLight breeze possible, up to 9mph

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