Duathlon Middle
Sun 27 Sep 2026 Edenbridge, Kent

Hever Castle | Middle Duathlon

Get active in the award-winning grounds and surrounding Kent countryside in a Middle Distance Duathlon! Recruit your friends and celebrate completing your challenge in the festival village.

Sign up for £90

Enter now
  • Sun 27 Sep 2026
Hever Castle and Gardens, Edenbridge
Duathlon Middle

Age 18 & over on 31 Dec 2026

£90

  • 10.5 km trail running + 300 ft ascent
  • 90 km road cycling + 2392 ft ascent
  • 10.5 km trail running + 300 ft ascent

Event overview

Join in at the Hever Castle Multisport Weekend to race through the award-winning grounds and the surrounding area of the stunning Kent countryside.

Pick your discipline – triathlon, duathlon, aquabike, aquathlon, swim and run – and choose a distance. Recruit your friends and celebrate completing your challenge in the festival village.

The Hever Castle Multisport weekend event in Kent is set within the stunning and historical grounds.

The Hever Castle estate offers a wealth of history; most recognisably the home of two of Henry VIII 6 wives. It was the childhood home of Anne Boleyn and one of the homes Anne of Cleaves was given after her divorce.

Throughout the weekend, athletes and spectators will be able to enjoy the award-winning gardens and a fun-packed festival village featuring live music, shopping, food and drink, children’s entertainment, yoga and more. 

You can also race with a team of friends in one of the relay options!

The Hever Castle September hosts the biggest Junior triathlon with huge numbers of children enjoying the various race distances for 9 – 16 years olds.

This event has been awarded the 2027 World Championship Standard Distance Aquabike Qualifier, taking place on Sunday 27th September 2026.

This event is part of Hever Castle Triathlon and Multisport Festival.

Event video

  • Average fitness
  • Beginner-friendly
  • Event village
  • Families
  • Spectators
  • Teams

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 is 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. Adventure Kit Hire is 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.

  • First aid
  • Marshals
  • Wave start
  • GPX available

GPX route

The route is displayed on the map above.

Cycle

Sunday Adults 45K

map

Run

Sunday Adults

map

  • Entertainment
  • Music
  • Park
  • Rural
  • Toilets

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.

  • Chip timing
  • Medal

Race pack Includes

  • Race bib
  • 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

You will need

If you are not already a member of British Triathlon, you will need:

  • British Triathlon Federation Race Pass - £8 Adult / £2 Junior

Always a great event/day, I have raced all types of events/triathlons/distances in many countries and this is one of my favourites. Justin M

This is a beautiful location, especially the run course which is trails and little footpaths and very pretty, and the lake which is next to a big pavilion. Melanie E

This was my first triathlon and I loved it! The setting was gorgeous and I was impressed with the friendly, supportive and encouraging atmosphere the organisers created. Charlie H

Fantastic venue. Challenging course through scenic countryside. Dave B

Overall a very good race. The organisation was solid, race officials friendly and patient, and the event village was one of the better ones I've been at for a weekend event. Matt D

The event communication was really good ahead of the race and everything ran smoothly from arrival to the start of the race. Laurence N

Everyone was worried about the cold water but it was bearable. A bit deeper would be nice! Sean B

This was my first Triathlon and I was really nervous prior to arriving but the set up and staff were amazing. Hayley G

A great event for my first triathlon! I enjoyed the course and the atmosphere. Alexandra S

It was a great experience overall. The staff were amazing and there was a great atmosphere. Suzie F

I really enjoy Castle events. Well organised and great volunteers. Karen C

Fantastically well organised and executed event: ran well to time, comms was great, directions were clear, transition was well managed, course was well planned and extremely well staffed. Shaun H

Amazing organization, staff and in a beautiful setting, especially appreciated the opportunity to camp on site overnight and activities for children to stay entertained during the race. Sebastien R

Overall okay. Pre race information was great and staff were brilliant. Simon T

First triathlon. Everything was well communicated and I felt safe the entire time. Lisa P

Very clear instructions and smooth registration, helpful and supportive staff, a very nice medal and a full on buffet at the finish. Oscar D

Really well organised event! Course was extremely well sign posted and marshalls throughout. Katie R

My first ever Triathlon and I was very impressed with the staff on hand. I always knew where to go and what to do. Stephen L

Excellent organisation by the whole team - organising a two day event with hundreds of athletes takes precision and Brian and his team seems to have that in abundance. Steven S

Fun event. Gobs of friendly helpers with check in. Geoffrey B

Staff were great, race director gave a good briefing and there was lots of information before the event via email so felt well prepared at the start line. Yannick O

Did my first half ironman, the Gauntlet. Almost can't fault it apart from the swim. Andrew H

The course was perfectly marked, and the entire event was flawlessly managed. Nigel P

Overall organisation and amenities were superb. Stephen A

I can't fault the quality of the organisation, especially the communication from the organisers, or the organisation on the day, which was first class. Nick G

It was very organised and the support staff on route were really great. Clare G

Great race day - the course route was easy to understand due to the volunteers on every corner. Everyone was friendly and welcoming. Daniel H

Overall a pretty and scenic location, it is a challenging ride and a trail run but the event organisers don't hide this and it made an honest race. Janet H

Great event, amazing marshals, so friendly and supportive. Very well organised. Laure S

Reviews thanks to RaceCheck

  • Recycling
  • Sustainability policy

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

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

  • Age 18 & over on 31 Dec 2026
  • Entries open
  • Enter online

Entry fees

Entry fee

£90.00

Enter now

Other races at event

  • Sun 27 Sep
  • #1 of 23
Hever Castle and Gardens, Edenbridge
Triathlon Gauntlet

Age 18 & over

£245-£295

  • 1.9 km lake swimming
  • 90 km road cycling + 2392 ft ascent
  • 21 km road running
  • Sun 27 Sep
  • #2 of 23
Hever Castle and Gardens, Edenbridge
Triathlon Olympic

Age 17 & over

£125-£165

  • 1.5 km lake swimming
  • 40 km road cycling
  • 10.5 km road running + 300 ft ascent
  • Sat 26 Sep
  • #3 of 23
Hever Castle and Gardens, Edenbridge
Triathlon Sprint Plus

Age 17 & over

£115-£155

  • 800 m lake swimming
  • 40 km road cycling
  • 8 km road running
  • Sat 26 Sep
  • #4 of 23
Hever Castle and Gardens, Edenbridge
Triathlon Sprint

Age 15 & over

£100-£150

  • 750 m lake swimming
  • 20 km road cycling + 819 ft ascent
  • 5 km road running
  • Sat 26 Sep
  • #5 of 23
Hever Castle and Gardens, Edenbridge
Triathlon Super Sprint

Age 15 & over

£95-£145

  • 400 m lake swimming
  • 20 km road cycling + 819 ft ascent
  • 4 km road running + 114 ft ascent
  • Sat 26 Sep
  • #6 of 23
Hever Castle and Gardens, Edenbridge
Triathlon Starter

Age 15 & over

£80-£120

  • 200 m lake swimming
  • 12 km road cycling
  • 2.5 km road running + 69 ft ascent
  • Sun 27 Sep
  • #7 of 23
Hever Castle and Gardens, Edenbridge
Triathlon 13-14 years

Age 13-14

£45-£60

  • 400 m lake swimming
  • 8.4 km road cycling
  • 2.5 km road running + 69 ft ascent
  • Sun 27 Sep
  • #8 of 23
Hever Castle and Gardens, Edenbridge
Triathlon 11-12 years

Age 11-12

£40-£60

  • 300 m lake swimming
  • 4.2 km road cycling
  • 1.8 km road running
  • Sat 26 Sep
  • #9 of 23
Hever Castle and Gardens, Edenbridge
Triathlon 9-10 years

Age 9-10

£35-£60

  • 200 m lake swimming
  • 4.2 km road cycling
  • 1.3 km road running
  • Sun 27 Sep
  • #10 of 23
Hever Castle and Gardens, Edenbridge
Duathlon Standard

Age 17 & over

£80

  • 10.5 km trail running + 300 ft ascent
  • 40 km road cycling
  • 4.2 km trail running
  • Sat 26 Sep
  • #11 of 23
Hever Castle and Gardens, Edenbridge
Duathlon Sprint

Age 15 & over

£75

  • 5 km trail running
  • 20 km road cycling + 819 ft ascent
  • 2.5 km trail running + 69 ft ascent
  • Sun 27 Sep
  • #12 of 23
Hever Castle and Gardens, Edenbridge
Aquabike Standard

Age 17 & over

£70

  • 1.5 km lake swimming
  • 40 km road cycling
  • Sat 26 Sep
  • #13 of 23
Hever Castle and Gardens, Edenbridge
Aquabike Sprint

Age 15 & over

£65

  • 750 m lake swimming
  • 20 km road cycling + 819 ft ascent
  • Sun 27 Sep
  • #14 of 23
Hever Castle and Gardens, Edenbridge
Aquathlon Standard

Age 17 & over

£65

  • 1.5 km lake swimming
  • 10 km road running
  • Sat 26 Sep
  • #15 of 23
Hever Castle and Gardens, Edenbridge
Aquathlon Sprint

Age 15 & over

£50

  • 750 m lake swimming
  • 5 km road running
  • Sat 26 Sep
  • #16 of 23
Hever Castle and Gardens, Edenbridge
Swim 5K

Age 18 & over

£65

  • 5 km lake swimming
  • Sat 26 Sep
  • #17 of 23
Hever Castle and Gardens, Edenbridge
Swim 2.5K

Age 16 & over

£55

  • 2.5 km lake swimming
  • Sat 26 Sep
  • #18 of 23
Hever Castle and Gardens, Edenbridge
Swim 1 Mile

Age 13 & over

£45

  • 1 mile lake swimming
  • Sun 27 Sep
  • #19 of 23
Hever Castle and Gardens, Edenbridge
Run Marathon

Age 18 & over

£65-£80

  • 42.2 km trail running
  • Sun 27 Sep
  • #20 of 23
Hever Castle and Gardens, Edenbridge
Run Half Marathon

Age 17 & over

£45

  • 21.1 km trail running
  • Sun 27 Sep
  • #21 of 23
Hever Castle and Gardens, Edenbridge
Run 10K

Age 16 & over

£35

  • 10 km trail running
  • Sun 27 Sep
  • #23 of 23
Hever Castle and Gardens, Edenbridge
Triathlon 15-16 years

Age 15-16

£50-£60

  • 500 m lake swimming
  • 8.4 km road cycling
  • 2.2 km road running
4 steps to wellbeing
Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.