Pop-up City Triathlon

Lough Cutra Castle
26/27 May 2018

Cholmondeley Castle
23/24 June 2018

The Festival of Endurance at Hever Castle
8 July 2018

Castle Howard
21/22 July 2018

Château de Chantilly
25/26 August 2018

Hever Castle
22/23 September 2018

Schools Roadshow
July 2018

Race Preparation

We have partnered with experts in tri gear to help you kit yourself out for race day, whether through hiring or purchasing.



We advise participants of the water temp two weeks before each event. Both shorties and full-length wetsuits are acceptable but should not exceed 5mm in thickness. Please note that a tri-suit is not an alternative to a wetsuit.

As all of our adult cycle routes are on public roads, we recommend that you hire or buy a road / race bike for your race.

The children’s cycle route always takes place within the Castle Estate boundary and as such off the public road and free of traffic.  We recommend mountain bikes although some use a cyclo cross bike (effectively a racer with off-road tyres). The courses encompasses a complete mix of terrain but not too technical (e.g. no bunny hopping logs or super steep descents).

Cycle helmets are compulsory for all.

Equipment Checklist

You will need:
  • Transition box/bag
  • Wetsuit
  • Goggles
  • Towel
  • Cycling shoes & socks (If wearing)
  • Tri suit or shorts and t-shirt
  • Bike
  • Cycle helmet
  • Trainers (some routes require trail shoes)
  • Nutrition
  • Water bottle
  • Race belt

We provide you with a swim cap.
Buy your swim and tri gear from the 2XU Store.



A winning combination of fabric technology and smart design helps 2XU’s elite triathletes across four continents optimize their performance both in training and in every leg of the race.


Backed by the Australian Institute of Sport (AIS), 2XU compression is scientifically engineered to be the worlds lightest, most powerful and flexible compression.

Their compression is used by casual amateurs through to elite world champions to improve performance, reduce the risk of injury and speed up recovery.

Hever Castle Triathlon Series Wheelscience


Simply world class race wheels provide athletes with built to order, fully customisable and race proven carbon wheels.


With time savings of almost 2 minutes over 40km or nearly 9 minutes over an Iron distance race, Wheelscience wheels will make you faster. All the performance at 1/2 the price! Incredible value (from approx. £750 a set) and free shipping anywhere in the world.  Castle Triathlon Series competitors also receive 10% discount with code: CTSWS1018.

Bike hire castle triathlon series

Bike Hire

British Bike Hire are the official bike hire partner for the Castle Triathlon Series for 2017.

Hiring a bike with British Bike Hire takes the stress and hassle of traveling with your bike out of race weekend; you can rely on them to have a freshly cleaned and serviced bike delivered to the event ready for collection. Once there you can collect your bike from one of their team of mechanics who will be on hand for any fitting adjustments, pedal changes or installation of extra parts that you may want.

The process is simple:
1.       Book your book online at www.britishbikehire.co.uk/events
2.       You’ll receive a confirmation email and then information about the event in the week leading up to it
3.       Arrive at your Castle Triathlon event and find your bike ready to ride in the event village
4.       Do your event!
5.       Drop it off at the end of the day when you’re finished

You can choose from their wide range of bikes from carbon road bikes at £75 for a single day hire, to hybrid bikes for £40 for a day hire.

Junior equipment

So, what gear do you need?

Here is a list of the key items; if you don’t have them already you can either buy or hire them from our retail partners.

  • Wetsuit (all Castle Triathlon Series events are in open lakes so temperatures can get pretty cold).
  • Swimming goggles
  • Swim hat (all competitors get a free hat on the day of the events)
  • Bike (mountain bikes are ideal)
  • Helmet
  • Trainers
  • Elastic or lock laces – to tie up your trainers quickly
  • Tri-suit or shorts and t-shirt are fine
Race distances

Race distances

For the absolute beginners and children to the professional triathletes, the Castle Triathlon Series offers a wealth of race distances to suit all levels.

Find out more


Hosted at a selection of stunning and iconic castles across the UK, Ireland and France, the Castle Triathlon Series events all promise an inspirational and memorable race experience.

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Take part

We pride ourselves on offering a bespoke and tailored offering for all those wishing to take part and grateful for all those who want to be involved on the day.

Find out more


We would always recommend training in preparation for any event, but how much you do, and the style you take is down to you.

Find out more