Windsor 50 Ultra Challenge
Choose from 50km, 25km or 10km distances, and head out on looped routes through the Great Park with fantastic views of the Castle, on to Runnymede, along the Thames Path, and takes in some wonderful countryside.
About this event
Get outdoors and onto the trails after the Easter holidays with stunning 50km, 25km, and 10km routes around the historic town of Windsor. Walk, jog, or run your way to the finish line whilst fundraising for an important cause and making a real difference.
From basecamp at Windsor Racecourse, join 2,000 Challengers heading out on trails through the Great Park, past the Castle, on towards Runnymede, and back along the Thames Path, before heading back to basecamp for your finish line. This flat and fast route is popular for first time Challengers looking to take on their first ultra, or people trying to go for a quicker time.
Join as an individual or as a team and experience full support every step of the way. Regular Rest Stops packed with food & drink, hot meals, fully marked routes, massage and medical care, marshals on course and walking the route with you, and of course an unbeatable community. There’s nothing like the sense of achievement after completing an Ultra Challenge. Push yourself further in 2027 and take on the Windsor 50 Ultra Challenge.
How to enter the Easter 50 Ultra Challenge
Charity fundraising
Self-fund fundraising for Charity
Great achievements lie beyond comfort levels – join Team Macmillan
Why should I join?
You'll get full support and hospitality all the way, leaving you to focus on your challenge.
• Walk, jog or run
• 50km, 25km and 10km options
• Food and drink included
• Finisher’s medal and t-shirt included
How we'll support you
As part of Team Macmillan, you'll receive:
But most importantly...
We'll provide you with a reason to keep going because you'll know that you're helping improve the lives of people living with cancer.
Donations make up 98% of our annual income so we simply couldn't do what we do without you.
More about this event
For full information on this challenge, please visit the Macmillan Cancer Support Ultra landing page.. You can also find FAQs here, or contact the Ultra Challenge event organisers directly
Please make sure you have read our Terms and Conditions before signing up.
Event Accessibility
Each Ultra Challenge Series event covers different terrain and landscapes, including steep climbs and descents, stiles, and uneven pathways subject to weather effects.
If you have any queries about the route, or have any special requirements to consider that you wish to chat through further before registering, please do not hesitate to contact the Ultra Challenge Team who will be happy to discuss course suitability.
Ready to join?
By joining us you'll know that you're helping improve the lives of people living with cancer in the UK today.
See other events
Are you looking for a different Ultra Challenge?
If this event doesn't quite fit the bill, there are loads more to choose from in the Ultra Challenge series. Check out all the Ultra Challenge series events to find the perfect one for you.