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Race around the idyllic Dorney Lake, home of rowing and canoeing during the 2012 Olympics. This race will appeal to athletes of all skill levels, as it is pan-flat and super quick. Come for a quick-fire PB and a finisher's medal.

Review summary

26 Reviews
  • Course
  • Organisation
  • Atmosphere


Sally C
"As a beginner this course is excellent, l was nervous and anxious but the..."


Ben S
"Course is pretty boring as it's 4 laps of the same course. Have not had my..."


"A bit disappointing. Closed roads so not sure why the start was so early for a..."
See all reviews

How to enter the Windsor Winter Duathlon & Run

  1. Icon

    Half Marathon

    Run 13.1mi
    Event passed
  2. Icon


    Duathlon: Run 10km, Bike 40km, Run 5km
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    Run 10km
    Event passed
  4. Icon


    Run 5km
    Event passed
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    Run 15km
    Event passed
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    Duathlon: Run 5km, Bike 20km, Run 5km
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  7. Icon

    Super Sprint

    Duathlon: Run 2.5km, Bike 12km, Run 2.5km
    Event passed

Windsor Winter Duathlon & Run routes



First Run Course

  • The run will start next to the Main Registration Marquee and will be an out and back course measuring 2.5km.
  • The Super Sprint Duathlon run will be 1 out and back lap, the Sprint Duathlon run will be 2 out and back laps and the Olympic Duathlon run will be 4 out and back laps.
  • 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 lap and the Sprint & the Olympic distances will be 2 laps.


  • The 5km, 10km, 15km & half marathon courses are laps around the famous rowing lake.
  • The course is fast and flat and takes place on tarmac paths and closed roads.
  • This is a perfect course for first time runners or those looking to get a PB

Event Details

What’s Included
  • Finisher's medals
  • Chip timed event
  • Secure baggage area
  • Refreshment stations
  • Aid stations
  • Marshalled course
  • Prizes for 1st, 2nd, 3rd overall Male and Female, 1st Vet (40+) Male and Female.
  • Free car parking
Raceday Logistics


0800 All duathlon distances begin together

0900 Venue opens for 5km, 10km, 15km & half marathon events

1045 5km,10km, 15km & half marathon Start

Event Registration is located by the Main Marquee as you enter the lake on the right hand side. When you arrive at registration, a member of staff will give you your event number.

Duathlon competitors will then receive:
1. Bib number. To be worn on the front when you are running and back when you are biking.
2. Depending on the number of competitors, you may be asked to have your event number written on
your hand. Staff to write your number in permanent marker that washes off skin.
3. Bike number. To be stuck on your bike seat post.
4. Helmet number. To be stuck on the front of your helmet.
5. Timing chip. This is supplied with a Velcro band to secure to your ankle.

5km, 10km, 15km & Half Marathon competitors will receive their race number and timing chip.

Please arrive 60 minutes before the start of your race in order to complete the registration process.

Kit List

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

Helmets are also compulsory for Duathlon competitors


This is a great event for spectators. Not only is Dorney Lake one of the most recognisable venues from the London 2012 Olympic games, but the looped structure of the course means spectators should get a good view of runners.

There are catering facilities available onsite in case you are feeling peckish.


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.

Questions & answers

Find out more from members of the community who did it last year, or those already signed up.

0 questions • 0 unanswered

Windsor Winter Duathlon & Run weather forecast

Light rain overnight.

Predicted highs
Predicted lows
Icon40% chance of rain
IconModerate breeze possible, up to 17mph

Meet the organizerIcon

F3 Events

Verified organizer

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F3 Events
Offering fun, friendly, family, fast and focused events across the South. F3 Events was set up in 2006 and has been one of the leading sporting event organisers along the Thames Valley for the past 10 years. Our mission is to organise, deliver and provide first class sporting events along the Thames Valley to aspiring athletes from complete beginners to elites athletes.

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Windsor Winter Duathlon & Run reviews (26)

4 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • A


    Did the Sprint in 2020

    A bit disappointing. Closed roads so not sure why the start was so early for a winter race - it was barely light. Struggled to find my way to the start as there was no signage around the pitch black lake. Run involved several dead turns which isn’t ideal. They also promised trophies for the top 3 but after waiting in very cold conditions, the prize was actually a voucher for money off the next F3 event.!
  • Did the Half Marathon in 2020

    Course is pretty boring as it's 4 laps of the same course. Have not had my result or time emailed to me. Good course for a pb and marathon prep
  • G

    Greg B

    Did the Olympic in 2020

    They didn’t have my registration so while I could race, I had to wait 20 mins for my crappy handwritten number. Not conducive to getting in a good place before the race and nowhere near the organization required for a £55 event. The cut off time is also extremely tight. While I made it, several people didn’t which meant you had people finish the race “ahead” of you even though they had completed all of the bike course. Then when I went to get my bag, they had just piled all of the running race bags on top of the duathlon bags. Pretty poor really.
  • Did the event in 2019

    £55 for a ride and run is expensive but I accepted that. However, the £6 booking fee is off putting. No matter how the organisers want to pretty up the additional costs with justification words. The £55 is more than full value and the £5 booking fee at the end of the process is off putting.
  • Did the Half Marathon in 2019

    The race was pretty good with really good Pacers. The volunteers and marshals made it even more special. The instructions were all pretty clear. The only disappointment for me was no post running goodies (apart from the medal and a bottle of water) and not even a banana was offered after finishing a half marathon race. But, overall it was a fantastic event and the weather was awesome too.
  • Did the Half Marathon in 2019

    Very well organised, fast course and overall a great race. Need to start near the front if you don't want to get held up - makes for a fast start
  • Did the event in 2019

    As a beginner this course is excellent, l was nervous and anxious but the atmosphere put me at ease. People were friendly and encouraging. Highly recommend and l will be returning later in the year.
  • Did the Half Marathon in 2019

    Great marshals and friendly atmosphere. Definitely one for a PB, not the most scenic but then again - its flat! Not so many people as to get in your way and quite a few pace makers for 300 odd runners if running slower than 1:35.Note: they set off a 5K, 10K and 15K shortly after the half marathon start and they run on the same roads - expect more casual runners (lots of headphones)
  • Did the Half Marathon in 2019

    This was my first ever event so was a bit nervous about how it all worked but I would say it was well organized and everything was easy to follow. So fully enjoyed the event. Thank you
  • Did the event in 2019

    It was a well organised event Staff were really helpful Location was stunning And all fellow competitors were really friendly and helpful Definitely going to return for the triathlon
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