Up next...Cholmondeley and Belvoir Castle
What a weekend at Château de Chantilly! Over 6,000 participants took on the course against the stunning backdrop of the Château, and the atmosphere was nothing short of electric. A huge thank you to everyone who joined us — we had an incredible time, and it looked like you did too!
But the fun doesn’t stop there…
Next up: Cholmondeley Castle — THIS WEEKEND!
Looking for a last-minute race? Why not join us in the beautiful Cheshire countryside and soak up the sunshine with a weekend the whole family can enjoy?
After that, we head to Belvoir Castle on 19–20 July. Nestled in the heart of the Leicestershire countryside, it’s the perfect setting for another unforgettable weekend of racing. With a wide range of distances and disciplines, there’s something for everyone — so what are you waiting for?
Join us at Belvoir Castle
There’s still time to join us at Belvoir Castle – July 19–20!
Set against the breathtaking backdrop of Belvoir Castle, this iconic venue will host one of the UK’s top multisport weekends of the summer.
Featuring a 2026 Standard Distance Duathlon World Championship Qualifier race as well as being part of the East Midlands Junior Series.
Athletes from across the UK and beyond will come together for a festival of racing, with stunning scenery and top-tier competition across all age groups and levels.
Don’t miss your chance to be part of this incredible weekend — entries are filling fast!
RACE IN 2026
We are currently offering 30% off our 2026 race weekend in Lough Cutra weekend on 23 – 24 May and Château de Chantilly on 6-7 June. Sign up today and save on your 2026 race.
Hurry – these amazing offers won’t be around for long.
Race for a Reason
Join Team Alzheimer’s Research UK racing at any Castle Race Series venue with a £10 registration fee and £200 fundraising pledge.
By racing with Team ARUK, you’ll be helping to fund vital dementia research while enjoying one of the UK’s most spectacular multisport events.
BAILEY's Journey
Bailey Matthews, who won national hearts in 2015 with his determination to complete a triathlon despite having cerebral palsy, is marking 10 years of racing with the Castle Race Series.
Now 18, Bailey will take on the Super Sprint Triathlon at Cholmondeley Castle on 21st June, a decade after his inspiring debut at Castle Howard. From winning the Pride of Britain and Helen Rollason awards to becoming a symbol of resilience, Bailey’s passion for triathlon continues to inspire.
School’s Roadshow, Hever Castle
On 8th and 10th July we welcome over 700 KS2 from the Southeast to the School’s Roadshow at Hever Castle, Kent. A cross curricular event where school groups will take part in triathlon and historical activities.
If you are a parent or teacher and your school would be interested in joining us, then please let us/your school know!
Share the Love – Get 15%, Give 15%!
Know someone who would love the Castle Race experience? Refer 2 friends and they’ll get 15% off their entry—and as a thank you, you’ll get 15% off too. Everyone wins when you race together!
Once booked see your Active account on the ‘My Events’ Page for your referral link.
Are you kit ready? Our ultimate checklist!
Have you got everything you need for race day? Check out our full checklist that we recommend all participants have when attending any of our events. Some items may surprise you!
SWANS UK
Born in Japan in 1911 SWANS has been making swimming goggles a long time. We are passionate about designing and manufacturing the highest quality swimming goggles for every type of swimmer.
Our goal is to ensure all swimmers, whether they are beginner or elite, fitness swimmer or marathon challenger, an open water dipper or triathlete, or competitive racer, enjoy the freedom and joy of the water without leaky or foggy goggles.
Use code CASTLE20 for 20% off discount
Find Your Perfect Sports Bra Fit
Struggling to find the right sports bra size? MAAREE’s expert Sports Bra Size Guide makes it simple. Learn how to measure yourself accurately, decode cup and band sizes, and avoid common fit myths.
Discover why proper support is essential for comfort, performance, and breast health. From sizing charts to try-on tips, this guide helps you feel confident and supported in every workout.
The world's 50 best swimming locations
For 22 years, our partner SwimTrek has explored the globe to uncover the planet’s top swim locations.
They’ve handpicked the best — from Italy, Greece, Turkey & Montenegro to Fiji, Bali, Belize & The Maldives. Explore the full list and find your dream swim
Performance Sunscreen
Training for a Castle event? Don’t overlook one of the most important performance tools on race day.
Discover why a sports-specific sunscreen can make all the difference to your health, comfort and results — and why the world’s best triathletes trust Pelotan. Save 15% with CASTLE15
UPGRADE YOUR KIT
Upgrade your performance with our custom Aero Tri Suits! Designed for comfort, speed and durability, our Tri Suit gives you the edge in every race, and keeps your triathletes on-brand. Get in touch today to begin creating yours.
RCS Business Messaging from BulkSMS
Transform your customer communication with RCS messaging! Deliver rich, interactive experiences using images, carousels, and action buttons- all within the default messaging app.
Engage your audience like never before with personalized, dynamic content.
Ready to transform your messaging strategy?
RACE FOR FREE
Join our Trading Places Scheme and marshal one day at any of our events and get a free race place at any venue. It includes camping and offers a great behind-the-scenes experience.
DIVE IN! SIGN UP TO OUR NEWSLETTER
Keep up to date with exclusive discounts, launches and news.