We thrilled to add this new jewel to our Castle crown! Join us at the Belvoir Castle Multisport Event weekend event to race through the beautiful grounds and surrounding area of stunning Leicestershire. Pick your discipline - triathlon, duathlon, aquabike, aquathlon, swim and run - and choose a distance from starter to elite. Recruit your friends and celebrate completing your challenge in our festival village.
We are delighted to introduce Alzheimer’s Research UK as our new National Charity partner. Get a charity place and help us raise much needed funds.
Belvoir Castle Multisport event is set within this remarkable estate and set’s the scene for the perfect family friendly weekend festival!
Like an illustration in a romantic fairy-tale, crowning the top of an isolated hill, the castle turrets and towers rise above the Vale of Belvoir. Looking over the battlements from the North Terrace, you can see for miles over the counties of Nottinghamshire, Leicestershire and Lincolnshire. The name Belvoir – meaning ‘beautiful view’ in French, is pronounced today as ‘beaver’.
Fan’s of TV series The Crown, will recognise several scenes filmed at Belvoir Castle. This Regency Castle was the perfect fit to recreate the Royals’ residence.
The Belvoir Castle Multisport event will feature some truly iconic courses amidst the 3,000 acres of naturally designed landscape, a large range of races for all ages and abilities.
Whether you’re 9 or 90 years old, a first-timer or an elite, you can pick from our triathlon, duathlon, aquabike, aquathlon, run and swim races.
Please read our in-depth 2025 Series Competitor Guide, Half Iron Gauntlet Course Guide 2025 and the 2025 Race Report to get acquainted with what to expect from a Castle Race Series event!
Read more about our Water Testing procedure.
Use the buttons below for full list of races and course maps.
We are delighted to have been awarded the 2027 European Championship Sprint Distance Triathlon Qualifier, taking place on Saturday 18th July 2026. Find out more about Age Group racing and how to qualify or simply register here.
NOTE! This will be a British Triathlon permitted event. To participate in a triathlon or multisport event you are required to:
On Your Bike offers three different types of bikes for your event - hybrid, road and carbon road. If you don't have a bike or prefer not to have the hassle to transporting yours, bike hire is the perfect option.
Bring your supporters to cheer you on and enjoy the festival village, buzzing atmosphere and castle grounds. Get your discounted event Entry Tickets here (not applicable to participants, and those in Junior races can bring one adult for free).
THESE TIMINGS ARE APPROXIMATE AND SUBJECT TO CHANGE.
All entrants will be notified of their wave time via email approximately 2 weeks prior to the event. We ask that triathlon and multisport participants arrive 1hour 15 minutes before their given start time. Swim and Run Series participants need to arrive no later than 30 minutes before the start of their race.
Take advantage of our payment plan and split the payments of your race fee over 3 months. Look for option at checkout.
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