Online Shop

Castle Triathlon Series Merchandise

NEW merchandise range!

Check out our new range of merchandise including base layers, t-shirts, hoodies and much more.

Medal inserts

Get your times on your medal after the event

You can personalise your well deserved race medal with a medal insert, showing your name and overall timing.

These will be posted to you after the event.


Camping at the Venue

Why not enjoy the unique experience of camping in the castle grounds to complete your tri weekend break? The best way to book is to log-in to your Active account and add Camping via “My events”. Look out for the “PURCHASE MERCHANDISE” button.

Camping can also be booked separately via the online shop: Online shop

ZONE3 Wetsuits

Hire a wetsuit from Zone3’s award winning range! Hire options include monthly or a full season! Or if you’re interested in purchasing a wetsuit, reach new limits with Zone3’s stunning wetsuit range. See Full Zone3 full range hereZone3 are offering an exclusive 20% discount to Castle Triathlon Series participants. Use code ‘CASTLE2019’ to benefit from this offer.

British Bike Hire

Bike hire

Hiring a bike takes the hassle of transporting your own to each event leaving you free to enjoy some well earned rest and recuperation after your ride.

British Bike Hire are the official Bike Hire Partners of the Cholmondeley Castle Triathlon, the Castle Howard Triathlon, and the Hever Castle Triathlon.

Event Day Insurance

Our event day insurance has been created by the team at Yellow Jersey Insurance to cover your race day. Our group policy, if you opt-in, covers you for the re-imbursement of your event entry fee should something unforeseen prevent you from participating (e.g. a new injury). The group policy also covers bikes on the day of the event for damage whilst racing and theft from transition (including overnight).


Support our Charities

Please support our National and Local Charities and make a donation online.


Being prepared will get the most out of your event day. TheTriLife offer an invaluable array of training advice including preparation days at the castle venues, specific training plans tailored to your distance and membership to their very affordable training club.

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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