Pop-Up City Triathlon

Join us for our unique static triathlon in Canary Wharf in April.

100 teams of three will compete for their chance to win £1k for their charity of choice, lots of prizes and of course bragging rights over their corporate rivals!

Read more

Lough Cutra Castle Triathlon has been awarded the Irish National Mixed Relay Championships.

Come and join us over May bank holiday weekend and receive 30% off your individual race if you sign up for a Mixed Relay too!

50 teams are already set to join you at the start line in the contemporary race (team of 4 race in a tag team all completing a short triathlon).

Sign up here.

School roadshow

We are pleased to announce that we will host our cross curriculum School Roadshow again this year.

Primary schools each bring 30 KS2 children to a Castle venue for a half-day of triathlon training and half day cultural learning about the historic venue and setting.

Sign up for the Hever Castle Roadshow (10-14 July).

Junior apparel partner

everactiv are supporting girls in triathlon by partnering with us and offering our competitors great quality technical sportswear that’s stylish and functional.

Co-founded by a professional triathlete, Catriona Morrison, the brand showcases a range of versatile sports clothing that's designed specifically for girls. Castle Triathon entrants get an exclusive 15% online discount using the code CASTLETRI.

Check it out.

Win hydration help

Win a Vita Coco Hydration and Nutrition Bundle prize bundle, a branded base layer and free race by entering a new competition.

Enter now

Running assessments

Our partner, Six Physio, is offering heavily discounted running assessments to help you grow stronger rather than put yourself at risk of injury.

An assessment will give you that confidence to ramp up training but only when your body is ready.

To book call Six Physio on 0207 0360286 and quote CTS20 to get a 20% discount.

Challenge yourself training tips

Hopefully by now you should have at least a few weeks of steady training under your belt.

Now is an ideal time to add to this endurance base by challenging yourself a little further.

Read on for top tips

Be a running hero

We have teamed up with Running Heroes & Cycling Heroes, which are platforms that reward you for running and cycling, to motivate more runners to give triathlons a go!

Sign up for free and get bonus points today.

We are hiring

As we prepare to welcome more competitors to the events we look to expand the team.

If you fancy joining the Castle Triathlon Series team we currently have two vacancies; Marketing/Social media manager and an Event admin assistant.

Please get in touch if of interest