The Chiltern 50 is a looped challenge in some of the Chilterns finest countryside, with historic trails, rolling hills, nature reserves, and fantastic views.
At the basecamp in Henley, there’s a Saturday night celebration BBQ, bar & entertainment, with extensive on-site camping & parking options. A route with real variety and some wonderful scenery – and easily accessible from London.
All levels of experience are welcome - you can walk, run or jog!
*Sign up now for a further 25% off reg fees when you choose full charity sponsorship*
Choose your fundraising option:
Full Charity Sponsorship - 25% discount off reg fee using code 'ANT25'!
*A further 25% off will be deducted from the below reg fees if you use the above code between 1st March and 30th April *
- Full Challenge (50km) - £30 registration fee and £375 sponsorship target
- Half Challenge (25km) - £22.50 registration fee and £275 sponsorship target
- 10km Challenge - £15 registration fee and £100 sponsorship target
Mixed Funding - you pay half of your event place cost, and fundraise a smaller minimum target
- Full Challenge (50km) - £75 registration fee and £225 sponsorship target
- Half Challenge (25km) - £50 registration fee and £150 sponsorship target
- 10km Challenge - £22.50 registration fee and £70 sponsorship target
Own place funding option also available
What to expect
Your entry into the event includes:
- rest stops with free food, drink, and massages
- a medal, t-shirt, and glass of fizz to celebrate your achievement
- support from medics and marshals along the way
You'll receive support and hospitality from the event organisers Action Challenge every step of the way!
How we'll support you:
- You'll receive a free Anthony Nolan T-shirt
- Access to a TeamAN walkers and trekkers Strava Club
- Dedicated fundraising and training support from the Anthony Nolan Events Team
FAQ's
Where does the challenge start and finish?
The challenge starts and finishes at Henley Showground for all distances
What time does the challenge start and finish?
Full Challenge 50km Continuous
Start times: 7am for runners, 7am – 9am for joggers & walkers
Finish times: Runners 4 – 7 hrs, joggers 7 – 10 hrs, walkers 10 – 16 hrs
Henley 25km Loop
Start times: 8:30am - 9:30am
Finish times: Runners 2 – 3 hrs, joggers 3 – 5 hrs, walkers 4 – 7 hrs
The Chiltern 10k
Start times: 10am
Finish times: Runners 40 minutes – 1 hr, joggers 1 – 2 hrs, walkers 2 – 3 hrs
Is there an Event Guide?
Yes! You can see the Event Guide here.
You can find all the information you need to know on the Ultra Challenge Website too.
Is the route accessible?
Ultra Challenges are physical events, where you can choose to walk, jog or run a distance of 10km –50km. The Event Organisers welcome participants of all abilities who are confident in their ability to participate, however must ensure everyone is clear on the requirements and accessibility restrictions of the route.
While each challenge covers different terrain and landscapes, you can typically expect steep climbs and descents, the necessity to cross stiles, and uneven pathways subject to weather effects such as mud and dust.
If you have any accessibility concerns or questions you can contact Action Challenge directly to discuss requirements and they'd be happy to support you.
Is there parking?
There is parking at Henley (basecamp) which costs £7 a car
Is there accommodation?
For an additional cost there is camping available at Henley (basecamp) for Friday and/or Saturday night.
Inclusive Packages – with pre pitched tent and roll mat (you bring a sleeping bag & other equipment). Parking and breakfast the following morning is included in your package.
Pitch Only Option – you bring your own tent or campervan (+ all equipment). Breakfast is NOT included in your pitch only camping – this must be booked separately.
Hot showers, rest area, changing rooms, & hot drinks are included.
You can find out more information and full pricing here.
Are there baggage transfers?
Yes! There are a range of services taking your bags forward for access during the challenge – for a change of clothes or shoes, extra layers for the night, or those snacks you can’t do without!
Price varies from £5 and you can find more information here.
Can I take part as a team?
Of course you can! Everyone must register individually as the event organisers require personal details and declarations. Within the form you can choose to ‘Create’ or ‘Join’ a Team.
Teams can be of any size and members can opt for the same or different funding options / distances.
- When you create a Team you become the Team Captain. You need a Team Name and a password for others to join. Then you can invite your friends and family to join you!
- Other people can join the Team as they register, by searching for the Team Name and using the password
Can Corporate teams get involved too?
Yes! We'd love for you and your colleagues to get involved and fundraise for Anthony Nolan.
If you're looking for a memorable event to energise and motivate your team, without the hassle and high costs of organising your own, then an Ultra Challenge is a great choice.
Ultra Challenges are perfect for getting colleagues active and bonding on a fun, accessible, safe, high quality outdoors event - ideal for a wide range of ages and athletic abilities, and perfect to boost wellbeing and loyalty. Teams can be of any size and everybody can take on a distance that suits them, at their pace!
You can find out more information here.
When is the fundraising deadline?
For the 'Full Charity Sponsorship' and 'Mixed Funding sponsorship' options, at least 50% of your sponsorship target should be raised 3 weeks prior to the challenge.
At this time, Anthony Nolan will then agree to pay a fee for your place to the Event Organisers.
The remaining 50% of your sponsorship should be raised by 4 weeks after the challenge.
The Anthony Nolan Events Team will be here to support you every step of the way so if you need a fundraising deadline extension then we can be flexible, just let us know!
What should I bring?
When you register, you will be able to see a full kit list on the Ultra Challenge app and you can find more info on the Ultra Challenge website.
If you are completing the 50km challenge you must bring a headtorch.
Is there an age limit?
You must be 16+ and accompanied by an adult if taking on the 50km Challenge
You must be 14+ and accompanied by an adult if taking on the 25km Challenge
Under 18's taking part must be signed up by someone over 18.
Got a question?
If you have any questions, please get in touch with the Anthony Nolan Events Team on 0303 303 3000 or events@anthonynolan.org