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JDRF has now rebranded to Breakthrough T1D.
Our name has changed, our mission has not.

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Featured

Tandem skydivers in the sky
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Young athletes stretching in Breakthrough T1D vests with CGM shown on arm.
Cycle rides Runs Swims Virtual
1 February to 29 March 2025

Virtual Triathlon Challenge 2025

Join our virtual triathlon by swimming, cycling and running – wherever and whenever you like!

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Illustrated route map for London landmarks half marathon
Runs
6 April 2025

London Landmarks Half Marathon 2025

From Pall Mall to Downing Street, runners will explore London's landmarks and hidden secrets on a route like no other.

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An aerial view of the Brighton Marathon finish line, alongside the beach and iconic pier
Runs
6 April 2025

Brighton Marathon 2025

The Brighton Marathon takes you from Preston Park, through the heart of the city and along the iconic seafront.

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Crowd of people setting off walking from Easter 50 Ultra Challenge start line
Walks & treks
12 April 2025

Easter 50 Ultra Challenge 2025

Walk, jog or run the distance of your choice, starting at Windsor Racecourse and taking in wonderful countryside views.

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Runners on the streets of Paris taking part in the Paris Marathon.
Runs
13 April 2025

Paris Marathon 2025

From the cobblestones of the Eiffel Tower to the banks of the Seine, the Paris Marathon has it all.

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Kilt Walk 2025 logo over landscape pictures of Glasgow, Aberdeen, Dundee and Edinburgh.
Walks & treks
Various dates

Kiltwalk 2025

Join us in Glasgow, Aberdeen, Dundee or Edinburgh and help make a difference for people living with type 1 diabetes.

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Four people from behind standing in park and wearing Breakthrough T1D running vests
Runs
27 April 2025

TCS London Marathon 2025

If you’re only ever going to do one marathon, make sure it’s the TCS London Marathon.

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Mass group of runners crossing the marathon start line with banners and a giant inflatable running shoe in the background.
Runs
27 April 2025

Manchester Marathon 2025

This incredible event draws participants from all over the world to the vibrant streets of Greater Manchester.

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Hillside on the Yorkshire Three Peaks (YTP) trek under cloudy sky.
Walks & treks
3 May 2025

Yorkshire Three Peaks 2025

Three peaks, 25 miles and 12 hours – are you ready to take on this exhilarating trek challenge?

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Happy young person in Breakthrough T1D T-shirt in a sunny park looking at camera
Walks & treks
10 May 2025

One Walk Nottingham 2025

We are so excited to be bringing One Walk to the East Midlands this year, with a jam-packed event village and a 5km route.

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Port of Leith abseil event with giant man abseiling down distillery building
Extreme sports
11 May 2025

Edinburgh Distillery Abseil 2025

Sign up for a thrilling 150ft abseil down a distillery building with stunning views of the city to help raise money for people with type 1 diabetes.

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Sun setting in fairly cloudy sky over participants on a coastal path of the Jurassic Coast Ultra Challenge.
Walks & treks
17-18 May 2025

Jurassic Coast Ultra Challenge 2025

Join 3,000 adventurers taking on the spectacular Jurassic Coast, a World Heritage Site, in south-west England.

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