We are on a mission to make sure that anyone of any gender, age or ability feels welcome and safe to take part in our races. We welcome volunteers and marshals, first-timers and old-timers, the next generation and the elites, clubs and corporates, schools and seniors. The more the merrier.

Event Crew

We are always looking for fantastic marshals for our sporting events. Crew will receive a t-shirt, free camping, meals throughout the day and brilliant experiences. There are a number of ways to get involved:

  • Trading Places Marshal – marshal the course one day, race for free the next.
    Our trading places role includes: A free race place (up to Olympic triathlon, 50% for Gauntlet and ultras)
  • Paid Marshal – marshal the course and we’ll top up your bank account. 
  • Charity Marshal – marshal the course and we will donate money to your chosen charity.


Discounts and club event areas

We welcome all sports clubs to take part in our events and can offer group discounts, tailored waves for club championships, trading places scheme, as well as allocating you a place to pitch gazebos for a meeting spot in the event village.



The WPA School's Roadshow

We run a unique cross curriculum Schools Triathlon Roadshow for KS2 children to experience at Hever Castle. This includes a half-day of cultural learning and half-day of triathlon training. The 2024 event has been sponsored by health insurance provider, WPA.

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Creating healthy teams

We offer opportunities for companies to experience our events together – a great way to build team morale and friendly competition. This can include group booking discounts, pre- and post-race refreshment from your own hospitality marquee, your own company wave, custom kit and more.


Accessible Racing

Racing for all

We have an ethos of accessibility and inclusivity and want to be able to offer a race for everyone. We are proud to have hosted many inspirational paratriathletes over the years including, Paralympian Matthew Emmerson, the Band of Brothers and Band of Sisters – injured and wounded service men and women. If you have specific race requirements, please get in touch as we would love to make it possible for you to race with us.


First Timers

Compete or complete

We have starter distances across all our disciplines and a very supportive community of athletes and marshals to help you feel confident and comfortable completing your first race.

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The next generation

From jumping in a lake, cycling through the woods to running around a castle, we pride ourselves on offering unforgettable, accessible races for 9–16 year olds at amazing locations in England, Ireland and France.

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2024 BTF Qualifying and Championship Events

For 2024, Castle Race Series has been awarded from British Triathlon:

Cholmondeley Castle: 2024 British Mixed Team Relay Championships and the 2025 Standard Distance Duathlon World Championship Qualifier

Hever Castle: 2025 European Sprint Duathlon Qualifier


Races for champions

Rising stars and athletes have raced with us from the very beginning. Many of our triathlon events host qualifying and national championships races in partnership with the BTF, TI and FF Tri, and our obstacle race is now a OCR World Championship Qualifier. We have always supported elites in their racing journey, so get in touch if you’d like to race with us this season.


Female focussed

Closing the gap

Over the last few years we increased our female participation to 38% by adding a greater variety of distances, female-only waves, launching our virtual series and making strategic partnerships. We’re closing the gap and if you’d like to help us please get in touch.


Take advantage of our payment plan and split the payments of your race fee over 3 months. Look for option at checkout.

Spread the cost of your race