Ultra Challenge®
UK's #1 Treks & Trail Run Challenges
10 KM, 25 KM, 50 KM, or 100 KM
AS A TEAM OR INDIVIDUAL
AT YOUR PACE…
Push Yourself Further!
Looking to achieve something special – to test yourself, to get in shape, to bond with friends or work colleagues on a weekend adventure? If so, an Ultra Challenge® is for you, and you don’t need to be a budding athlete – they’re accessible for everyone. Take it on as a Walk, Jog, Run, or mix it up – at your pace.
Whether along stunning coastlines, or trails through outstanding countryside – your Ultra Challenge® will be unforgettable. Full support all the way; rest stops with food, drink, medics & massage; camaraderie with new friends made; optional fundraising for a favourite charity – and a tremendous sense of achievement!
… For ALL Experience Levels.
18 Amazing Challenge EVENTS
Over 200,000 adventurers have taken on an Ultra Challenge®, and the 18 events make up the UK’s biggest & best series of treks & trail runs – which also raises £10+ million a year for charities.
Whichever challenge you choose, you’ll get full support all the way so you can set a new goal, enjoy or wonderful countryside, and Push Yourself Further. If you’re up for a challenge in 2025 – make it an Ultra Challenge®.
Your Challenge
Your Way!
Challenging events at your pace, for all fitness levels, ages, and experience. For teams of friends or colleagues & for individuals; for a charity of your choice, OR just do it for yourself and achieve something special!
No obstacles or mud pools, just wonderful British countryside; full support all the way; lots of food & drink; camaraderie & friendship, a unique welcoming event atmosphere – and your spirit & determination.
With 18 events – 25 km & 50 km choices; 100 km continuous challenges – or over 2 days with the ‘Daylight’ option if you want to step it up; a few trail marathons; a dozen 10 km taster events, and a new Ultra March® category – there’s an Ultra Challenge® for EVERYONE!
.. Get Active in 2025
YOUR CHALLENGE – YOUR WAY
Most walk, many jog; some will do both and see how it goes. At the front runners may be stepping up from a marathon, testing themselves against the clock, or just out for a great a trail run!
Ultra Challenges are for ALL. On our 50 & 100 km ‘Ultra’ distances, over 50% are female (2024), with all ages taking part and a wide range of experience & fitness levels.
If you aim to do a 100 km Ultra for the 1st time – there’s the ‘2 DAY DAYLIGHT’ option, with camping at half way.
There’s also the ULTRA MARCH® category for like-minded walkers with a goal of completing 100 km in less than 24 hours (or 50 km <12 hours).
A continuous 100 km full Ultra Challenge is quite tough, but is absolutely achievable with good preparation, our support teams & rest stops stocked with plenty of food & drink and our ‘Trailmed’ medics.
OR – there’s a 2 day 100 km ‘Daylight’ option with halfway camping – as a great way to step up to a full Ultra – and ‘Push Yourself further’!
New to 2024 were ~75 km 3/4 Challenge options on some events if you want to step up from the 50 km!
There’s also a fantastic range of testing single day ~50 km ‘Half’ challenges, scenic ~25 km ‘Quarter’ challenges, a few trail marathons (42 km) – and a range of 10 km taster events.
Young Persons Discount available – if aged 21 or less (subject to min. age rules / distance).
We have a Series of a dozen or so 10 km /10 mile events throughout the season at the main Ultra Challenge venues.
Ideal as a taster event or if you just want a shorter challenge – or to take on whilst your friend or family member is taking on a longer Ultra Challenge.
10 KM / MILE SERIES >>
It only takes 2 to make a TEAM – but the more the merrier! A Team of friends or family can motivate & support each other, whilst sharing an unforgettable adventure with a great reason to celebrate! Teams can do the same or a mix of distances, and sign up with the same or a mix of funding options too.
INDIVIDUALS / SOLO CHALLENGERS will feel 100% welcome & safe and are guaranteed to meet many new friends enroute, and our experienced Support Teams looks after everyone! For 2025 there’s an optional ‘Solo Challenger Start Time’ slot to meet up with others.
Many choose to FUNDRAISE for a charity of their choice, and with 600+ to choose from you’ll be amazed how much you can raise on these tough challenges, as friends & family will recognise & support your courageous endeavours!
The Ultra Challenge® Series raises £10+ million / year for charities. Choose your charity; set up a JustGiving sponsorship page and make your challenge count!
Others just want a great challenge and SELF FUND their place and achieve something special!
CHARITIES INVOLVED >>
There’s best value MULTI DEALS for 3 or more Self Funded events – with up to 25% OFF.
We want to encourage the ‘young‘ to join – so there’s 20% OFF Self Fund prices for those aged 21 or less (subject to event distance min. age rules: 18 for ~100 km & 75 km / 16 for ~50 km / 14 for ~25 km & marathon / 12 for 1/2 marathon / 8 for 10 km). Under 18’s need to be accompanies by an adult participant.
Runners – if you have ambitions of competing in the famous ‘Ultra Trail du Mont Blanc’ event – an Ultra Challenge® is perfect to clock up qualifying points.
Full Challenges (~100 km) have 3 or 4 points available & Half Challenges (~50 km) from 1 – 3 points.
Looking for a great event for your team without all the hassle, risk, or costs of organising it? These events are the PERFECT solution and we had over 400 company teams joining us in 2024.
Your Team will be energised, exercised, bonded & motivated on a fun, accessible, safe, high quality outdoors event. With optional hospitality packages available, make an Ultra Challenge® your company’s special event – maybe supporting your ‘charity of the year’.
FIND OUT MORE >>
Get in Touch:
corporate@actionchallenge.com
Full Support ALL THE WAY
Our unmatched levels of support enables ‘000’s to ‘Push Themselves Further’- and whilst a 50km or 100 km ‘Ultra’ sounds tough – IT’S ABSOLUTELY ACHIEVABLE! We’ll help you prepare with a Challenge App, training guides & forums.
On the day, there are camping options, shuttle busses, a warm up & noisy send off, a fully signed route, timing with NEW GPS Tracking, marquee rest stops with fantastic food & drink included (+ NEW menus for 2025) , and expert safety, medical & welfare teams. A big finish line cheer, with a medal, glass of fizz, a souvenir T shirt, massage & finishers meal – and it’s a special weekend to remember!
Download our Ultra Challenge® App once you’ve signed up. With guides, optional extras, routes & maps, & the latest updates prior to each Challenge, all the information is at your fingertips.
Our lively Facebook forum is great for advice & meeting fellow Challengers.
If you’re fundraising, your charity sends a support pack & their contact details.
Experienced Challengers help develop our training guides & videos, on foot care, nutrition, hydration, & building distance up for all levels of experience.
We also run a few optional training walks throughout the year to practise night walking and to connect with the Ultra Challenge community.
Look out for our seasonal ‘Virtual Challenges’ – designed to motivate & keep your training on-track!
There are bookable coach transfers, shuttle busses, & parking options before & after your challenge to make travel planning easier.
Most events offer camping packages at the ~50km Saturday ‘half way’ rest stop for the 2 day ‘Daylight’ 100 km challenge option (or for a ‘half’ challenge) and at the main start venue for Friday night before the event.
00’s of pink arrows + glow-sticks (at night) mark the route, and with Google route maps in the App you won’t get lost on an Ultra Challenge®!
Our Timing System scans you at rest stops, with your progress logged and monitored. For 2025 – we’ve upgraded our system, with an APP for your mobile with GPS Tracking – which you can share in ‘real time’ with family & friends – without draining your phone’s battery – and you also get all the info on the route lying ahead!
Our Rest Stops are the BEST!
Covered areas every ~12.5km or so, and major ones each ~25km – all with seating, clean toilets, medical services & shuttle busses. There’s a range of free snacks & drinks at all stops, with full meals at the ‘major’ ones & finish – all included in your entry fee + NEW MENUS for 2025!
Ultra Challenge® rest stops will help you to ‘Push Yourself Further’ – and get to that finish line!
Rest stops have expert teams supplied by TrailMed, our official medical partner – with doctors, paramedics, first aiders, & podiatrists and massage services provided alongside.
There are emergency response teams with 4×4’s, safety marshals & experienced ‘Trek Masters‘ on the route – with a 24 hr Control Room monitoring all aspects of the event just a phone call away.
An Ultra Challenge® finish line is a celebration, and quite emotional for many after a tough journey!
You’ll get a big cheer, a quality medal, a glass of fizz to toast your success, a visit to the massage tent, and a well earned finishers meal.
Memories will be long lasting, maybe personal goals redefined, and always a great sense of achievement that, once aches & pains subside, will leave you wanting another challenge!
THE EVENTS
From the Isle of Wight up to the Lake District, there are 18 fantastic UK events. Some have stunning coastal paths, others have rolling hills, and a few are on historic trails. Each Ultra Challenge® is unique, with distance options to suit all!
100 km Challenge prices are frozen for the 4th year running; our Young Persons 20% OFF Deal is extended to ages 21 or less, and there’s a new ULTRA MARCH® category for walkers aiming to crack the 100 km / 24 hour pace!
LAST CHANCE FOR 2025
UP TO 75% OFF CHARITY REG FEE
+ ‘MULTI DEALS’ – UP TO 25% OFF
Ends Sunday 22 June
2026 REGISTRATION OPENS 28 JUNE
2026 CALENDAR COMING SOON...
.. With One New Addition!
A Festival of Riverside Events. Join Us!
Fri 12 - Sun 14 Sept 2025
- ULTRA CHALLENGE – Putney to Henley via Runnymede: 100km, 50km, 25km
- BRIDGES TREK – Central London -16 historic bridges: 25km & 10km routes
- MOONLIGHT 10 – Friday fun & fitness – 10 mile / 10km. The Oval start / finish
- HENLEY 10K – Stretch the legs Sunday morning at your pace – Riverside!
Take on England’s greatest river! Full support & hospitality, an amazing atmosphere – and an unforgettable Challenge to suit everyone.
2025 EVENTS
10 KM / 10 MILE 'TASTER' EVENTs
trail marathons in the series
NEW ADVENTURES FURTHER AFIELD!
ICELAND CHALLENGE
- Iceland
- 4-Day Itinerary
- Camping
- 2 Marathon Distances
NEW FOR 2025! Take on the land of fire & ice on this new Iceland Ultra Adventure, set against the backdrop of the rugged landscape of Iceland’s South-Western highlands. Expect steep and rugged back-country terrain, breath-taking views and the very best support. This 4-day trip is action packed and scenic – with some steep volcanic terrain and beautiful views. It will test and reward you!
JoRDAN CHALLENGE
- Jordan
- 6-Day Itinerary
- Camping & Hotel
- 2 Marathon Distances
Take on the Jordan Challenge with an inspirational route through the dramatic desert scenery of Wadi Rum, with vast silent landscapes, ancient sun baked riverbeds, sand dunes, and a Bedouin style basecamp. This 6 day trip is action packed – with full support, the opportunity to dip in the Dead Sea, and capped off with a visit to Petra – the ‘8th wonder of the ancient world. An unforgettable Arabian adventure!
atlas CHALLENGE
- Morocco
- 5-Day Itinerary
- Camping & Hotel
- 2 Marathon Distances
Go higher with the Atlas Challenge! Set in North Africa’s highest mountain range. With snow-capped peaks, rugged valleys, Berber villages and a traditional Moroccan-style basecamp. This 5-day trip is action packed – with steep trails and rugged pathways, plus the chance to extend your stay & explore magical Marrakech. It’s easy to join us, with plenty of flight options from the UK.
SAHARAN CHALLENGE
- Morocco
- 6-Day Itinerary
- Camping & Hotel
- 2 Marathon Distances
A fantastic route through the Draa Valley down to sun baked dunes on the desert edge, with rugged mountain scenery, and a Bedouin style basecamp. This 6 day trip has it all – a tough challenge, stunning scenery, luxury camping, camaraderie, full support, and 2 nights in magical Marrakech either side of the challenge. An unforgettable Moroccan adventure – and some welcome autumn sunshine!
We also organise amazing treks & cycles Worldwide
OUR CHARITY PARTNERS
A record £10+ million of fundraising in 2024!
We’re proud to work with hundreds of UK charities which benefit from the Ultra Challenge fundraising which exceeded £10 MILLION in 2024.
Our main ‘Series Partners’ & ‘Challenge Partners’ are some of the UK’s major national charities – and if you support one of these ‘Official Partners’ – it’s 75% OFF standard Reg Fees for ‘Full Sponsorship’ sign ups in JUNE (use code JUNEDEAL at Checkout to get extra discount)
Choose a Charity, sign up, and set up your JustGiving fundraising page NOW.
SERIES PARTNERS
OR CHOOSE FROM over 600 LISTED CHARITIES
OUR OFFICIAL FUNDRAISING PARTNER
