The Series

The Festival of Endurance

Wow! We are in awe of all those taking part in this year’s Festival of Endurance. It certainly lived up to it’s name as we witnessed incredible performances with mental and physical strength together with an electric atmosphere!

The Festival of Endurance

Sunday 8th July 2018


We are in complete awe of your performances this weekend from the 1,500 competitors taking it on. From all the tri’ers completing their long course tri courses, to the competitors of the British Middle Distance Championships and half iron distance Gauntlets, half and full marathon runners and of course the hardcore 100 completing The Bastion (including many who have completed it multiple times!!). It certainly felt like a Festival of Endurance with diligent efforts, lots of celebrations and stunning surroundings.

We hope you are bragging to all those who will listen and even more bragging is made by those fundraising for a good cause too. It was great to see that 40 of the competitors were raising funds for Macmillan Cancer Support, its really appreciated and a huge achievement.

We totally loved being part of your life changing events and are so happy for you all. We are still smiling and hope you are too with pride and elation.

30% off The Festival of Endurance 2019

Don’t forget to sign up to 2019 (Monday 30th July) for your early bird discount of 30%*! Look forward to seeing you again next year!

*offer extended to midnight Sunday 15th July 2018.

Medal inserts, merchandise and more...

You can visit our Online Shop to order medial inserts and Castle Triathlon Series merchandise.

Look forward to seeing you again next year, or perhaps at one of our other events this year!

Festival of Endurance Competitor Photography

Official Event Photography

To help you prolong your memories please see links to competitor photography.


A full breakdown of race results can be found here. If you have any queries please contact Stuweb Timing Solutions here.

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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