Pop-up City Triathlon
24-27 April 2017

Lough Cutra Castle
27/28 May 2017

Cholmondeley Castle
24/25 June 2017

The Festival of Endurance at Hever Castle
9 July 2017

Castle Howard
22/23 July 2017

Château de Chantilly
26/27 August 2017

Hever Castle
23/24 September 2017

Schools Roadshow
July 2017

Take Part


The Castle Triathlon Series has played a major role in the buoyant growth of children’s triathlon in the UK, culminating in the Hever Castle leg hosting the world’s largest youth triathlon in 2013.


From jumping in a lake, cycling through the woods to running around a castle, we pride ourselves on offering unforgettable, accessible races for 8–15 year olds at five amazing locations in England, Ireland and France.

Currently there are very few triathlon events where children, teens, and adults are able to participate on the same day and over the same course.

With a festival atmosphere providing the backdrop, all ages and levels can race together at the Castle Triathlon Series, ensuring a great way for the family to enjoy exercise together, raise money for a charity of choice and spend a weekend in the great outdoors. Providing the children don’t show up the parents during the race, of course!

The weekend and the midweek events provide a perfect race setting for schools, sports groups and junior triathlon clubs. We’ve also just launched our new Tri-Knights scheme, a National Curriculum-friendly triathlon resource for primary schools.

Race distances

Race distances

For the absolute beginners and children to the professional triathletes, the Castle Triathlon Series offers a wealth of race distances to suit all levels.

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Hosted at a selection of stunning and iconic castles across the UK, Ireland and France, the Castle Triathlon Series events all promise an inspirational and memorable race experience.

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Take part

We pride ourselves on offering a bespoke and tailored offering for all those wishing to take part and grateful for all those who want to be involved on the day.

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We would always recommend training in preparation for any event, but how much you do, and the style you take is down to you.

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