This iconic triathlon challenges you to conquer a 1.2-mile swim, a 56-mile bike ride, and a 13.1-mile run—a total of 70.3 miles of pure perseverance.
The Journey Begins Here Whether you're an experienced triathlete or taking on your first 70.3 challenge, IRONMAN 70.3 offers an opportunity to redefine your limits.
The details
Date: 14 September 2025
Date:
14 September 2025
Location:
Weymouth, Dorset
Location:
Weymouth, Dorset
Cost: £50
Cost: £50
Target: Minimum £1,900
Target:
Minimum £1,900
Take on the ultimate challenge
1.2-mile swim
56-mile bike ride
13.1-mile run
Get involved!
Ready to help those affected by mental illness? Join in with the challenge!
FAQs
Are bikes provided?Â
Bikes are not provided, but an event partner can assist in helping you rent a bike. Email us at events@rethink.org
What is the age limit for participating?Â
All IRONMAN and IRONMAN 70.3 events are open to athletes aged 18 and over. No athletes under 18 will be permitted to take part on race day.
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Our impact last year
People helped in our services
We directly helped 22,000 people through our network of services and hundreds more through our peer support groups.
People called our helplines
Our advice and information helplines took over 45,000 calls and hundreds more via our online webchat.
People visiting our website
Our website saw over 4.2 million visitors.
Social media followers
Our social media audience grew to 750,000 followers
What we do
As experts in mental illness, we know that with the right support and information people severely affected by mental illness can have a good quality of life.
That’s why our aim is to meet each person’s individual needs and make sure everyone living with a mental illness is treated with dignity and respect.
