Hever Castle Triathlon and Multisport Festival | Triathlon Olympic

Start times to be confirmed.

Anyone of any gender, age or ability is welcome and safe to take part in a race. First-timers and old-timers, the next generation and the elites, clubs and corporates, schools and seniors are welcome. The more the merrier.

Clubs

Discounts and club event areas.

All sports clubs are welcome to take part in the events and group discounts are available, 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.

Corporates

Creating healthy teams.

There are opportunities for companies to experience the 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.

This event has an ethos of accessibility and inclusivity and wants to be able to offer a race for everyone. Many inspirational paratriathletes have taken part in one of the Castle Triathlon Series races over the years including Paralympian Matthew Emmerson, the Band of Brothers and Band of Sisters – injured and wounded service men and women.

First timers

Compete or complete.

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

Juniors

The next generation.

From jumping in a lake, cycling through the woods to running around a castle, there are unforgettable, accessible races for 9–16 year olds at amazing locations.

Elites

Races for champions.

Rising stars and athletes have raced in the Castle Race Series from the very beginning. Many of these triathlon events host qualifying and national championships races in partnership with the BTF, TI and FF Tri, and the obstacle race is now a OCR World Championship Qualifier.

Female focussed

Closing the gap.

Over the last few years female participation has been increased to 38% by adding a greater variety of distances, female-only waves, launching the virtual series and making strategic partnerships.

Armed Forces

Race savings.

Discounts are offered on races to those who are serving or have served in the armed forces.

Bike hire

Choose between a road, hybrid or carbon road bike. If you don't have a bike or prefer not to have the hassle of transporting yours, bike hire in the perfect option.

Photography

Photographers are on-site to capture you in action!

Medals and prizes

Podium presentations take place for all races. All participants receive a medal which can be personalised with your name and finish time.

Training advice

Tri Training Harder help athletes prepare for this event through different coaching packages which include race specific training plans, pre-event training sessions and a virtual training club.

Merchandise

Race kit: Train for your race in Castle Race Series Kit and purchase a finisher t-shirt to make sure everyone knows you've conquered the castle!

Wetsuit hire

10% discount code: TriWetsuitHire are the quick, easy and affordable solution to making sure you have a high performance technical wetsuit for your race.

Buy wetsuits

15% discount with Yonda.

Spectators

A fantastic day out! Supporters are welcome to come along, explore the stunning castle grounds, cheer athletes on from numerous up close viewing spots, enjoy the event village entertainment and soak up the festival atmosphere.

Event HQ

Hever Castle and Gardens
Hever Road
Hever
Edenbridge
Kent
TN8 7NG
UK

The castle

Set in spectacular countryside, the delightful Hever Castle with camping options at the event, offers an invite to explore the gentle countryside that surrounds the area. Visit the charming village of Edenbridge, or ease those aching muscles with some gentle walking around the splendid countryside that constitutes the High Weald AONB.

Camping

From £30 per pitch.

There is a family campsite for tents and caravans in the castle grounds with pitches starting at £30.

GPX route

The route is displayed on the map above.

Governing body race day licence and 2026 qualifier

This event is delighted to have been awarded the 2026 World Championship Standard Distance Triathlon Qualifier, taking place on Sunday 28th September 2025.

Swim

Olympic and Gauntlet

Cycle

Sunday Adults 20K

Run

Sunday Adults

We are delighted to have been awarded the 2026 World Championship Standard Distance Triathlon Qualifier, taking place on Sunday 28th September 2025. Find out more about Age Group racing and how to qualify or simply register here.

This event appreciates that the health of the planet is a huge challenge and has made commitments to tackle these challenges which they will continually measure, evolve and improve.

These environmental commitments include:

• Reducing material use - prioritising using less
• Reusing - finding better alternatives
• Recycling - wherever possible
• Being a responsible buyer - sourcing sustainably with an ethical framework in place

Race pack Includes

• Race bib
• Numbered labels
• Swim hat
• Chip timing device
• Event wristband

Available on the day

This event is more than just the race! There's an event village for you and your supporters to enjoy, featuring:

• Shopping village
• Drinks and refreshments
• Delicious food
• Live music
• Prizes for the fastest athletes
• Opportunity to purchase official event merchandise
• Opportunity to purchase official race photos

Take part for the charity of your own choice if you wish!

Relay

• Teams of 2 or 3

Entry fees

This is a great event to choose if you want a challenge! The swim is magical around the castle, the bike course is hilly, so be prepared for that. The run is mostly off road which I loved, but with the undulating course after the hilly bike, your legs need to be prepared for it. Marshals are great and very slick registration process. Samantha T

Lovely event, everything was very well organised and we got shuffled through registration and into transition to prepare without any dramas.  Briefing was good and I liked the time trail start (first Olympic so the thought of a mass start was scary!) Ellen H

Great event, as my first one I didn't know what to expect but it was really well done, everyone was friendly and helpful. The Marshalls were especially good at cheering you on and helping you through. Looking forward to doing it again. Ian B

This was my first triathlon event and I felt very supported throughout. Everything was very clear and everyone was very helpful. The post-race free food was a really nice touch. Bethany Q

Bastion Ironman Triathlon at Hever Castle. wow what a venue and a course. Loggia setting for the swim is hard to beat. loads of thrilling long descents on the 'rewarding' (tough) bike (a climbers delight), loved it, an absolute classic. varied run is an easy trail, and road shoes fine as its hard packed in summer, unless wet. so many encouraging marshalls, few races can match this level of quality organisation and event, you get what you pay for, highly recommended. Anthony G

Loved the swim , it was clearly marked and easy to follow. The bike sure was hilly- but well marshalled and clearly signed. We’d been advised to wear trail shoes for the run, and I was glad I did as it was almost all on trails, making it more interesting than many courses, but tough. Great atmosphere, wonderful to get a free massage and meal afterwards. Not a course for a PB, it’s a challenging, friendly and well run race. Catherine M

Best organised triathlon in the country. Easy access, not too big, very friendly, interesting course. Great for spectators. Highly recommend it. Simon K

Really nice race with great beginner friendly atmosphere. Hard hilly bike course and hilly trail run. Very diverse course never gets boring. Definitly my favourite race in UK as I have done it 10x. Highly recommended! Hannah K

An absolutely fantastic race, the team are incredibly friendly and supportive.  Have done the course twice, once half distance and once full distances.  Both times the organisation has been spot on, super clear before hand, well signposted and supported on the day and most importantly for me, incredibly family friendly and all in a totally gorgeous setting - Would heartily recommend to anyone. Chris W

Reviews thanks to RaceCheck