Castle Tri is a friendly triathlon club based in Prudhoe, Northumberland.

We have a full team of qualified, expert coaches offering regular swim, bike and run training sessions. You are guaranteed a warm welcome and a supportive atmosphere at all of our sessions.
Castle Tri aims to help you reach your goals, big or small, in swimming, cycling and running. We believe everyone can benefit from being a part of our club activities, whatever your fitness level and experience, from complete beginner to competitive racer. That’s why our club motto is “Train Hard, Stand Proud.”
If you are interested in being a part of the club, we would love to hear from you. Come to one of our regular training sessions (check the Training page for details) or get in touch with us via the Contact Us page.

Our 2017 Castle Tri Club Championship events can be found in the calendar opposite.

Come and join us at our upcoming events!

Castle and Derwent Triathlon 24th June 2018

We are delighted to be able to give you the date you have all been waiting to pencil in your diaries!

Castle Tri and Derwent Reservoir Sailing Club are proud to announce the ‘Castle & Derwent Triathlon’ on the 24th June 2018. Both a Standard Tri and Sprint Tri will be taking place, just watch this space to sign up!

If you would like to be added to our reminder service drop an email to You will receive an email reminder when registration opens so you don’t miss out!

© Castle Tri Club 2015