
Chiltern 50
Ultra Challenge®
28 Sept 2024 - Registration Open
- Registration open
- Henley Basecamp
- 50 km & 25 km Loops & 10K
- Camping Packages
- Transfers












The Ultra Challenge® Experience

Endurance events for a wide range of fitness & ages. Choose your Challenge – do it at your pace, and there’re 16 events in the Series. Our support enables you to go further, whilst enjoying the great outdoors & camaraderie. There’re marquee rest stops, lots of food & drink, medical & massage teams, with a fully signed route to guide you. A big finish-line celebration awaits with an amazing sense of achievement, and once the aches subside you’ll feel energised, and up for more of life’s real challenges!
Good preparation & smart planning are key to successfully completing an Ultra Challenge. From the moment you sign up you’ll have access to our Challenge App, with training guides, optional training walks & runs, maps, on the day info, and online forums. We will also keep you updated with any news & challenge updates via notifications through the app and emails.
Keeping you well fed & hydrated is key to getting you across that finish line successfully & safely. Whichever distance you are signed up every meal and snack stop is included in your entry so you can expect:
- Regular snack stops every 12.5 km
- Main meal/every 25 km
- Hot drinks, water & energy drinks at all stops
- We cater for every dietary requirement
- Lighter options for ‘runners’
- Finishers meal
We have Rest Stops every 12.5 km or so with ‘major’ ones at ~25/50/75/100 km. Our Rest Stops are like no others – along side a large medical area and catering services they are all covered infrastructure (to keep you out of the sun or rain!) – here there will be a place to sit down and put your feet up, use any of the facilities (toilets, medics, changing rooms, rest areas, baggage pick up). Manned by our team to help with any query or questions you have!
There’re pink arrows to guide you, distance markers, glow-sticks at night, hazard signs, and a route map in the App. Our ‘Trek Masters’ organise group departures at night so nobody has to walk solo. Our chip timing system enables our Control Room, and your friends / family, to track your progress through the Rest Stops. There’s also the option to hire a ‘GEO TRACKER’ – so they can follow you in real time every step of the way – day & night!
For those taking on the Full Challenge (~100 km) across 2 days we have on every event a ‘Base Camp’ set up where you can either book one of our all inclusive camping packages or ‘pitch your own’. Our camp sites have hot showers, drinks stations, chill out areas and are a great way to get some shut eye over the Saturday night, before taking on the 2nd day of your challenge!
Keeping you safe and healthy is our upmost priority – we have a vast experienced team of Doctors, Paramedics, First Aiders, Podiatrists and Masseuses available and on hand at every Rest Stop (as well as roaming the route). You will also have access to a ‘self help’ area at every stop with blister plasters, talcum powder & more should you just need tape yourself up!
We don’t ever want you to forget that moment you reached your goal and crossed over the finish line – our Cheer Squad will ensure that you don’t! You will be given a medal, finisher’s t-shirt, glass of fizz and a photo finish! Before being guided to a hot meal drinks & a well earned sit down and rest.
We operate shuttles to and from the nearest train station for anyone needing onward travel after their challenge, the majority of our finish lines also have ample parking so your supporters can meet you and pick you up, as well as we will have specific ‘transfers’ back to other locations – check the individual event pages for full details of the services we will be laying on.
Date: Sat 28 Sept 2024
Start & Finish: Henley Showground
Distance & Elevation: 50 km & 920 m elevation
Date: Sat 28 Sept 2024
Start & Finish: Henley Showground
Distance & Elevation: 25 km & 500 m elevation
10 km Chiltern loop
Henley (basecamp) > Henley (basecamp)
- Saturday 28 September 2024
- Startline – Henley (basecamp)
- 10km & ~ 235 m elevation
- Finish line – Henley (basecamp)
Your Challenge,
Your Way!
AUTUMN DEAL
FREE Ultra Challenge Tech T-shirt (worth £20)*
Extended till 30 Nov' 23
* Excludes Winter, Summer & Halloween Walks +10K's

How to Join
Do it for yourself/ Self Fund
Pay for your event place in full, with no fundraising required. Sign up & pay online today!
Do it and support a charity/ Fundraise
Pay a registration fee & commit to fundraise for a charity of your choice.
Best Value 'MULTI DEALS' for 3 events or more. Save up to 25%!
Our Charity Partners
We work with a wide range of fantastic charities, which benefit from the annual £7+ million of Ultra Challenge fundraising. Our Series Partners and Challenge Partners are some of the UK’s major national & regional charities. Choose to fundraise for one of these ‘Official Partners’ – and it’s 50% OFF the normal charity sponsorship Reg Fees. We also have 50 or so ‘Associate Partners’ (with 25% OFF normal charity Reg Fees) AND 300+ other ‘listed’ charities involved that you can choose to support.

OFFICIAL PARTNERS
50% ofF full sponsorship for charity REG FEE

OTHER PARTNERS
25% ofF full sponsorship for charity REG FEE

or fundraise for over 300+ others

2024
FACTSHEET
All you need to know about the Challenge & how you can take it on. Print it off - or send it to your friends!
Check out
the routes & maps
Corporate Team Packages
Looking for an event to get your team energised & bonding - you may have a charity to support? If so, the Isle of Wight could be perfect!

16 Amazing Challenges
Over 200,000 adventurers have taken on an Ultra Challenge® so far, and the 16 unique events make up the UK’s biggest & best series of treks & trail runs – which have also raised £50+ million for charities. Whichever challenge you choose, and whoever you are, you’ll get full support all the way so you can set a new goal, enjoy the British countryside, and Push Yourself Further! Whoever you are – If you’re up for a challenge, it has to be an Ultra Challenge®
2024 REGISTRATION IS OPEN


Lake District Ultra Challenge
8-9 June 2024
100 km loop + Half & Quarter Challenge options & Ambleside 10K
1 of 14
Isle of Wight Ultra Challenge
5-6 May 2024
106 km ‘Full Island’ Loop + Half & Quarter Island options.
2 of 14
London 2 Brighton Ultra Challenge
25-26 May 2024
100 km + Half & Quarter Challenge distance options
3 of 14
South Coast Ultra Challenge
7-8 Sept 2024
100 km + Half & Quarter Challenge options
4 of 14
Jurassic Coast Ultra Challenge
18-19 May 2024
100 km + Half & Quarter Challenge options AND Marathon + Double Marathon & Bridport 10K
5 of 14
Thames Path Ultra Challenge
14 – 15 Sept 2024
100 km + 3/4 + Half & Quarter Challenge options
+ Thames Bridges 25km Trek (Sat – Central London)
+ Friday Moonlight 10K Walk (Central London)
+ The Henley 10K (Sunday)
6 of 14
South West Coast 50 Ultra Challenge
3 August 2024
50 km Loop + 25 km & 10 km Challenge options
7 of 14
Peak District Ultra Challenge
6-7 July 2024
100 km Loop + Half & Quarter Challenge options & The Bakewell 10 Mile.
8 of 14
Cotswold Way Ultra Challenge
22 – 23 June 2024
100 km + Half & Quarter Challenge options.
9 of 14
Chiltern 50 Ultra Challenge
28 Sept 2024
50 km Loop + 25 km & 10K Challenge options
10 of 14
North Downs 50 Ultra Challenge
27 July 2024
50 km Loop + 25 km & 10km Challenge options.
11 of 14
Easter 50 Ultra Challenge
Sat 6 April 2024
50 km 0r 25 km Loops
12 of 14
London Summer Walk
Sat 24 August 2024
25 KM or 10 KM looped route – Woolwich Start / Finish
13 of 14
London Winter Walk
27 & 28 Jan 2024
Full Marathon, Half Marathon or 10K options. Start / finish – The Oval Cricket Ground – looped routes
14 of 14