A man in a green swim cap and wetsuit climbs out of open water next to a large Macmillan Cancer Support banner.

Charity triathlon

Try out a triathlon! Swim, cycle and run to raise money for people living with cancer.
We have everything you need to help you reach the finish line, find your personal best and support our vital services.
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Browse triathlon events
Find your perfect event and sign up today.
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Organise your own triathlon
We have all the tools and tips you need to complete your own triathlon.
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I'm doing a different triathlon
Are you doing an event that isn't listed on our website? You can still be part of Team Macmillan.

Swim, ride and run for Macmillan

It's as easy as ready, steady, go...

The number one.

Sign up

Find the perfect event and register for a place.
The number two.

Train and fundraise

Use our expert support to get race-day ready.
The number three.

Swim, ride & run

See your hard work pay off on event day and wear your medal with pride.

Popular charity triathlon events

View more events

Fundraising support

A person wearing a Macmillan t-shirt holding a fundraising bucketA person wearing a Macmillan t-shirt holding a fundraising bucket
Fundraising tips
All the information you need to get your fundraising started and raise as much as you can for our vital services.
Close up image of a man's hands using an ipad.Close up image of a man's hands using an ipad.
Materials and resources
Create your own fundraising materials or order some additional resources to give your fundraising activity the iconic Macmillan look.
A table of Macmillan branded merchandise including caps, metal water bottles, and folded t-shirts.A table of Macmillan branded merchandise including caps, metal water bottles, and folded t-shirts.
Online shop
From water bottles to sweat bands and everything in-between. Get the full Team Macmillan makeover from our online shop.

Training essentials

We want to make sure you get the basics right for each stage of your triathlon. Check out the top tips and practical advice on our swimming, cycling, and running pages. But come back for your triathlon specific training plans.
A woman swims with her hands out in front having just dived into the pool. She wears a swim cap and goggles.A woman swims with her hands out in front having just dived into the pool. She wears a swim cap and goggles.
Swimming essentials
We've got the know-how on swimming technique, kit, and tackling open water.
Close up shot from behind of a woman riding a bike along a path by a canal.Close up shot from behind of a woman riding a bike along a path by a canal.
Cycling essentials
Make sure your bike is race day ready and find out how to stay safe on the road.
A woman putting on running shoes A woman putting on running shoes
Running essentials
From training shoes to running posture, we've got all the top tips to get you running like a pro.
A female lifts weights in a gymA female lifts weights in a gym
Preparing your body
Get your body into tip-top shape with our guidance on stretching, conditioning and nutrition.
Swimmers in wetsuitsSwimmers in wetsuits
Training plans
Whether you are doing your first sprint triathlon or tackling a grueling 70.3 miles of an iron distance event, we've got a plan perfect for you.
Strava logo in red.Strava logo in red.
Get social
Training can be easier if you can link up with others. Get support and train virtually with your Team Macmillan teammates in our Strava club.
Three people photographed from behind with their arms around each other wearing green Macmillan running tops

Why your support matters

Find out how your support helps people living with cancer and the ways we make a difference.
Impact of donations

Get in touch

0300 1000 200
Call our Supporter Care team Monday to Friday, 9am-5pm and and Saturday 9am-1pm
Email us
Get in touch with our Supporter Care team by email
Fundraising FAQs
Answers to common questions our supporters have about supporting Macmillan – how to pay in money, changing your details, making a donation.
Fundraising tips
Get top tips and advice from Macmillan on how to maximise your fundraising.