The Castle Race Series season kicks off in just two months at stunning Lough Cutra Castle, 23–24 May. This newsletter covers race-day fuel tips, training camps, discounts on your favourite performance fuel, and ways to share your “why” for fundraising — plus updates from our partners!
Lough Cutra Castle | 23-24 May
Château De Chantilly | 6-7 June
Cholmondeley Castle | 20-21 June
Hever Castle | 26-27 September
Plus! Book your race with added security – all ticket purchases include the option to add Booking Fee Protection powered by Yellow Jersey.

Prepare beyond training — focus on consistent workouts, smart fuelling, hydration, strength, and recovery.
Practise your race-day nutrition in training so you arrive confident, energised, and ready to perform.


We’d love to hear your “why.” Whether you’re fundraising in memory of someone special, supporting a loved one living with dementia, or driven by a passion to create change for future generations, your story matters. Sharing your reason not only celebrates the people and experiences behind your journey.
Get in touch and share your story.
As part of Castle Race Series, you get 20% off all truefuels energy gel and performance bundles with code CRSTF20 from our Official On-Course Nutrition Parter, truefuels.
Whether you’re racing your first castle triathlon or chasing a PB, stock up now and arrive at the start line fully prepared.


Join us 16–23 April for the TTH–Castle Race Series Training Camp Week and receive 10% off as a Castle athlete.
This fully coached warm-weather camp provides the perfect environment to build consistent volume, refine technique, and train alongside experienced coaches and athletes.
A focused week of swim, bike, and run training can accelerate your fitness and confidence, helping you arrive at the summer Castle race season stronger, sharper, and better prepared.
Order your official race day t-shirt ahead of race day and receive a free neck buff with your purchase. It’s the perfect extra layer for training, travel, or race morning.
This exclusive offer is only available for pre-race orders — once race day arrives, it’s gone. Don’t miss out.


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Keep up to date with exclusive discounts, launches and news.