About Ultra Challenges
Jan – Oct 2026
📍 Various locations across the UK
Join the Ultra Challenge Series in 2026 and help raise funds for Children’s Heart Surgery Fund!
Whether you prefer a stunning coastline or trails through the magnificent countryside, the Ultra Challenge Series offers 20 different events across England and Wales.
With distance options from 10km up to the full 100km – there’s an Ultra Challenge waiting for you in 2026.
Take on an Ultra Challenge
and help us keep being there for our heart unit, patients and families!
Sign up information
- Choose your location and distance.
- Select your fundraising option. This can be full sponsorship, mixed funding or your own place.
- Choose Children’s Heart Surgery Fund from the list on the sign up form.
- Complete the registration.
- Start fundraising!
Sign up to secure your place. A member of our team will be in touch to welcome you to #TeamCHSF
Already got your Ultra Challenge place?
Let us know you’re taking part and make a difference!
What you’ll get:
- Children’s Heart Surgery Fund t-shirt to wear on the day of your event
- Tailored training guides
- Digital support pack with fundraising ideas and materials
- Support from our dedicated events team to help you smash your fundraising target
Leeds Running Festival: 10K
About Leeds Running Festival 10KSunday 5th April 2026 Join us for a unique opportunity to run a 10k in support of CHSF around Roundhay Park in Leeds, one of the biggest city parks in Europe. Each mile will be accurately marked out and there are plenty of helpers to...
Leeds Running Festival: 5K
About Leeds Running Festival 5KSunday 5th April 2026 Join us for a unique opportunity to run a 5k in support of CHSF around Roundhay Park in Leeds, one of the biggest city parks in Europe. Each mile will be accurately marked out and there are plenty of helpers to keep...
Leeds 10K
About Leeds 10K14th June 2026 The Leeds 10K is a popular annual road race that takes runners through the vibrant streets of Leeds, offering scenic views of the city’s landmarks. Originally founded by the late Jane Tomlinson, who raised millions for charity while...