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Château de Chantilly Triathlon

Event details
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Set over the UK bank holiday weekend, the racing will take place in the spectacular and historic town of Chantilly, just a 2.5hrs drive from Calais and 40 miles north of Paris.

Over 3200 participants took part in the hugely successful 2016 event. As we look forward to 2017, the event will continue to include a whole spectrum of distances, with races for children aged eight and up to the middle-distance race, Le Gantelet, first introduced at Château de Chantilly in 2013.

Chantilly provides a fantastic and challenging race, with the 2.5km Grand Canal overlooked by the Château and its gardens hosting the open-water swim. Triathletes will transition within the Terrasse des Connétables and set off into a fast 20km or 45km cycle circuit around the Forêt de Chantilly. After entering T2, competitors will run the surrounding woodlands, the world famous race course “LHippodrome” and Chateau gardens finishing within sight of the beautiful Chateau.

Review summary

3 Reviews
  • Course
  • Organisation
  • Atmosphere


Will W
"Stunning scenery running around the Chateuax and a good flat fast bike course...."


Alex T
"Great race in such a beautiful location. Really flat, fast bike and the run was..."


Liz C
"Beautiful scenery and well organized event. Just wish the half marathon..."
See all reviews

How to enter the Château de Chantilly Triathlon

  1. Sprint Plus

    Triathlon: Swim 0.8km, Bike 40km, Run 8km
    Event passed
  2. Super Sprint

    Triathlon: Swim 0.4km, Bike 20km, Run 4km
    Event passed
  3. Start Sprint

    Triathlon: Swim 0.2km, Bike 11km, Run 2.5km
    Event passed
  4. Half Iron

    Triathlon: Swim 1.9km, Bike 90km, Run 21km
    Event passed
  5. Olympic

    Triathlon: Swim 1.5km, Bike 45km, Run 10km
    Event passed
  6. Chantilly Swim - 5km

    Swim 5km
    Event passed
  7. Chantilly Swim - 2.5km

    Swim 2.5km
    Event passed
  8. Chantilly Swim - 1 mile

    Swim 1mi
    Event passed
  9. HALF Marathon 21.1km

    Run 21.1km
    Event passed

Château de Chantilly Triathlon routes

Château de Chantilly Triathlon weather forecast

Partly cloudy throughout the day.

Predicted highs
Predicted lows

Meet the organiser

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Formed in 2009, the Castle Triathlon Series has swiftly established itself as the UK’s largest triathlon series. From Lough Cutra to Chantilly and Castles Howard, Cholmondeley and Hever, we’re immensely proud of the iconic backdrops to each Castle Triathlon Series race and the friendly festival atmosphere produced at every event.



Château de Chantilly Triathlon reviews (3)

3.7 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • Did the HALF Marathon 21.1km in 2019

    Beautiful scenery and well organized event. Just wish the half marathon started much earlier. It was very hot by the time we started which was dangerous.
  • Did the Half Iron in 2019

    Great race in such a beautiful location. Really flat, fast bike and the run was beautiful around the castle, but swim in the canal had a lot of weeds. Amazing volunteers, pave on the bike course and getting to and from bike from transition wasn't ideal, but not enough to stop it being a fantastic race, would highly recommend.
  • Did the Half Iron in 2019

    Stunning scenery running around the Chateuax and a good flat fast bike course. Volunteers were all very helpful and a very friendly atmosphere. Locations is fantastic as very easy to get to from the UK.

    Swim is in a idyllic place but the lake is quite shallow with a lot of weeds and it had failed the water test. Medal is not great and there was no goody bag afterwards.

    Overall however, a great day out and recommended.

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