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2025 Henley Triathlon.

UK Triathlon

Take on the ultimate challenge for Cancer Research UK. Swim, cycle, and run to help power life-saving research.

About UK Triathlon

UK Triathlon and Cancer Research UK are proud to partner once again for the Cancer Researck UK Wave Triathlons, a wave dedicated to raising money for Cancer Research UK. The Cancer Research UK Wave encourages participants, of any age, gender or ability, to unite and take on a challenge that will help fund life-saving research into over 200 types of cancer.

For each CRUK Wave entry, UK Tri donates £10 to Cancer Research UK. This can have a huge impact. Did you know that 10 CRUK Wave entries could cover the cost of testing one patient to diagnose early stages of oesophageal cancer?

Join Cancer Research UK right now and we'll get you to the finish line. We've got training and fundraising advice to prepare you for the big day, cheering packs for your friends and family, and a dedicated supporter services team ready to answer any last minute questions.

How to sign up

Take a look at some of the events listed below and click on the link to register. Each Cancer Research UK Wave event costs £70 to enter and there's no minimum fundraising ask, just raise what you can!

Can’t find an event that works for you? You can see the full list events via the UK Triathlon website.

Upcoming events

Man in swimming pool with bunting.

Stratford Triathlon

Date: Sunday 19 April 2026 Location: Stratford-upon-Avon

Cheshire Triathlon 2016.

Cheshire Triathlon

Date: Sunday 10 May 2026 Location: Nantwich, Cheshire

Runner wearing a CRUK top whilst holding his arms out wide.

Henley Triathlon

Date: Sunday 31 May 2026 Location: Henley-on-Thames

Join Team Cancer Research UK

Already have a place in a triathlon event? We’d love to have you fundraising for #TeamCRUK! 

Join our team today

Fundraising support 

We’re here to support you every step of the way. Dive into your one-stop shop with handy hints and tips to help make your fundraising a roaring success! 

Get practical fundraising support

Training resources

Your support powers our life-saving research to beat cancer. Discover our resources so you can train with purpose for your event. 

FAQs

Find answers to the most frequent questions about our sports events. 

Read our FAQs

Contact us 

Any questions about your event or fundraising? Contact our friendly Supporter Services team today.

Find the right event for you

If you didn't find an event you were interested in, check out our other sports events.

Discover more events