Looking for a challenge – to test yourself, to get in shape, or bond with friends on a weekend adventure?
If so, an Ultra Challenge® is for you – and you don’t need to be a budding elite athlete –they’re for everyone, take it on at your pace! Whether along stunning coastlines, or trails through wonderful countryside, your Ultra Challenge® will be unforgettable – with full support all the way, camaraderie, an amazing sense of achievement, and all in support of the Bone Cancer Research Trust.
Walk, Jog or Run at YOUR pace on the Ultra Challenge Series event of your choice. Join 35,000 others of all ages & take on an unforgettable Challenge in 2026! It will be rewarding, fun, and absolutely achievable with your resolve and determination alongside first class support. There's regular rest stops with free food & drink, a fully signed route, and a great atmosphere.
As the Bone Cancer Research Trust are an official partner on the 2026 Ultra Challenge Series, you get a 25% discount on the ‘Full Sponsorship’ registration fee.
Head to the pink button to the right hand side of the page to sign up or check out the list of challenges below.
Click here to view the full list of Ultra Challenges and sign up.
September - Chiltern 50 Ultra Challenge, Saturday 26th September 2026
October - Kent Downs 50 Ultra Challenge 2026, Saturday 10th October
London Halloween Walk, Saturday 31st October 2026
Push yourself further – and take on a 10km, 25km, 50km 75km or even a 100km Ultra Challenge in 2026
Sign up before the November 30th 2026 and use code BCRTDEAL50 to get 50% off your registration fee!
Now booking for 2027!
January - London Winter Walk, Saturday 30th and Sunday 31st of January.
March - Bath 50 Ultra Challenge, Saturday 10th March 2027
April - Windsor 50 Ultra Challenge, Saturday 17th April 2027
May - Isle of Wight Ultra Challenge, Saturday 1st and Sunday 2nd May 2027
Jurassic Coast Ultra Challenge, Saturday 15th and Sunday 16th May 2027
London 2 Brighton Ultra Challenge, Saturday 29th and Sunday 30th May 2027
June - Lake District Ultra Challenge, Saturday 5th and Sunday 6th of June 2027
July - Peak District Ultra Challenge, Saturday 3rd and Sunday 4th July 2027
WHAT YOU’LL GET:
- Inclusive & fun event with a great atmosphere and camaraderie
- Choose your distance, from 10km to 100km
- Walk, jog, or run – it’s your challenge, your way!
- A fully signed route, with a team of ‘Trekmasters’ out on the trail with you
- Regular covered rest stops, with free food & drink, massages and medics
- An epic finish line moment, with a glass of fizz, medal and T-shirt
- Camping, transfer and parking options to make getting there & away easy
- Full fundraising support, and a choice of fundraising options
Click here to view the full list of Ultra Challenges and sign up.
Get Involved
- Team Spirit: When you join #TeamBones you’re welcomed into a group who are passionate, supportive and all working towards the same goal of finding a cure. We'll celebrate your progress and you'll get support from our dedicated fundraising team and our #TeamBones community.
- FREE fundraising pack: We will send you a digital pack with our best tips and fundraising materials.
- A #TeamBones running top which you can personalise with iron on letters so the crowds can chant your name.
- Support from our fundraising team to help you every step of the way. If you ever need to ask us a question you can email us on [email protected]
- Make an Impact: By taking on one of our events or challenges you’re helping to make a vital impact for families facing primary bone cancer.
Why join #TeamBones
- £5 could allow us to provide a child undergoing life-altering surgery with an interactive story book to help them understand their treatment and recovery
- £40 funds an hour of essential laboratory time for our researchers investigating new treatments for primary bone cancer
- £100 allows us to put on one of our virtual Support Groups allowing those affected to come together to discuss topics that are important to them and their family
Entry fee options explained 2026
Option 1 - Full Sponsorship for charity
Pay a small Registration Fee & Fundraise for the Bone Cancer Research Trust (who then pay for your place.) As the Bone Cancer Research Trust are an official partner on the 2026 Ultra Challenge Series, you get a 25% discount on the ‘Full Sponsorship’ registration fee when signing up to support us.
Option 2 - Mixed funding for charity (not available for 2027 events)
Pay for half your place cost & fundraise less for the Bone Cancer Research Trust (who pay half your place cost.)
Option 3 - Own place charity fundraising
Pay for your place & fundraise whatever you can (with no event place cost to the Bone Cancer Research Trust). There is no target associated with this option but we ask that you fundraise as much as you can.
Entry fee options explained 2027
Option 1 - Full Sponsorship for Charity
Pay a small registration fee & fundraise for the Bone Cancer Research Trust. Fundraising targets and registration fee vary based on the event type and distance.
Option 2 - Self funding
Pay for your own place & fundraise whatever you can for the Bone Cancer Research Trust (small admin fee to charity.) There is no target associated with this option but we ask that you raise as much as you can for the Bone Cancer Research Trust.
To learn more or to sign up to one of these exciting events please click here.
If you have any questions please email us at [email protected].
Can't find the event you're looking for? Take a look at our Challenge Events Near You, we can guarantee we have races near you!
