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Image of challenge participants supporting Encephalitis International around the world.

Global Running Challenges

Sight-seeing and running combine brilliantly for these global challenge events. Run through must-see cities and past iconic landmarks whilst supporting Encephalitis International!

Various Dates / Locations, Worldwide
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Image of challenge participants supporting Encephalitis International around the UK.

UK Challenges - Run, Tough Mudder, Bungee

Want to run your first 5k? Or how about the challenge of a marathon or obstacle race? There are plenty of challenge options in the UK to support us!

Various Dates / Locations, United Kingdom
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Ultra Challenge events - logo and participants.

Ultra Challenge - Walk, Jog, or Run

Whether along stunning coastlines, or trails through wonderful countryside, your Ultra Challenge® will be unforgettable. Walk, jog or run - take on a 10km, 25km, 50km 75km or even a 100km Ultra Challenge.

Various Dates / Locations, United Kingdom
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Images of Edinburgh Marathon Festival participants and logo.

Edinburgh Marathon Festival

The Edinburgh Marathon Festival offers a varied programme of events across the weekend, with kids races, 5km, 10km, half marathon and full marathon, including the Hairy Haggis Team Relay option for 4 runners.

23 - 24 May 2026
Edinburgh, UK
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Image of Thames Path Ultra Challenge participants.

Thames Path Ultra Challenge

Whether you choose to walk, jog or run - England’s most famous river provides a fantastic backdrop for an unforgettable Thames Path Ultra Challenge. Distance options include 100km, 75km, 50km, 25km and 10km.

13 September 2025
Putney Bridge, UK
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