Pop-up City Triathlon

Lough Cutra Castle
26/27 May 2018

Cholmondeley Castle
23/24 June 2018

The Festival of Endurance at Hever Castle
8 July 2018

Castle Howard
21/22 July 2018

Château de Chantilly
25/26 August 2018

Hever Castle
22/23 September 2018

Schools Roadshow

Take Part

Triathlon Clubs

Big group discounts, waves tailored for club championships and the CTS European tour… the Castle Triathlon Series provides the perfect venue for your annual tri club’s major race day meets.

Triathlon Clubs

Many clubs opt to enter a single event from our five race series but more and more clubs are doing the three-country Castle Triathlon Series tour.

Perfect for a healthy race day rivalry and an excuse for a team social, the CTS Tour ventures to the three UK destinations of Howard, Cholmondeley and Hever, over the Irish Sea to Lough Cutra and a skip across the Channel to Chantilly, offering some gastronomic highs to boot.

With every swim and run taking place in the Castle grounds, the courses also offer a wealth of spectator vantage points and packed finish line chutes, offering the ideal venue to cheer your club mates to the finish line.

If you’d like to enter your club into a Championship wave at the Castle Triathlon Series, email Rosie at admin@castletriathlonseries.co.uk.

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.

Find out more


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.

Find out more

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.

Find out more


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

Find out more