UK triathlons
From first-timers to experienced triathletes, our UK Triathlon team is showing what’s possible when people come together for a great cause. Every swim, ride, and run helps fund vital arthritis research.
Swim, cycle, run for Arthritis UK
Ready to swim, cycle, and run for a great cause? Take on a UK Triathlon and help fund life-changing arthritis research. Whether you're a first-timer or a seasoned triathlete, every mile you cover helps make a difference.
Join Team Arthritis, challenge yourself, meet amazing people, and have fun along the way. Pick your event, set your fundraising goal, and get ready to cross that finish line.
Adult UK Triathlons
Sunday 18 April 2027
Take on Stratford-upon-Avon Triathlon: swim, cycle and run in a friendly event for all abilities.
Sunday 9 May 2027
Enjoy the Cheshire Triathlon in Nantwich, a friendly event for all abilities with great support and a fun family atmosphere.
Saturday 20 June 2027
The Ultimate 150 is the perfect opportunity to put your progress to the test. This is not just a race, it’s a true endurance challenge.
Sunday 19 September 2027
Take on the North West Triathlon with a scenic swim, fast cycle, and enjoyable run. With distances for all abilities.
Kids UK Triathlons
Saturday 22 May 2027
The Glasgow Kids Triathlon is a great, non-competitive event where children can swim, cycle and run while staying active and building confidence.
Saturday 5 June 2027
The Henley Kids Fun Triathlon is a friendly, non-competitive event where children swim, cycle, and run. It promotes fitness, confidence, and fun, with supportive marshals ensuring a safe experience.
Saturday 21 August 2027
The York Kids Triathlon lets children swim, cycle and run in a fun, friendly event focused on fitness, confidence, teamwork and making memories!
Saturday 18 September 2027
A fun run-and-cycle challenge for young athletes, the North West Kids Fun Duathlon encourages active lifestyles, confidence, friendship and enjoyment.
You may also be interested in...
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Runs
Run for Arthritis UK: Power through world-famous marathons or 5Ks in gorgeous city parks - pull on your trainers and support arthritis research.
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Walks and treks
Walk for Arthritis UK - choose from stunning coastal paths to countryside rambles to fundraise for arthritis research.
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Swims
Make waves for Arthritis UK: Join sponsored swims in beautiful locations and help support life-changing arthritis research.