Ultra Challenge®
UK's #1 Treks &
Trail Run Challenges
10 KM, 25 KM, 50 KM, or 100 KM
AS A TEAM OR INDIVIDUAL
WALK, JOG, or RUN…
Looking for a special event – to test yourself, or to get in shape & boost wellbeing, or bond with friends on an active adventure? If so, an Ultra Challenge® is for you, and take it on at your pace – they’re for everyone!
Whether along stunning coastlines, or on trails through magnificent countryside – it’s full support all the way; rest stops with food, drink, medics & massage; camaraderie & new friends, optional fundraising for a favourite charity – and a tremendous sense of achievement.
Push Yourself Further!
20 Amazing Challenge EVENTS
Over 250,000 adventurers have taken on an Ultra Challenge®, and the 20 events now make up the UK’s biggest & best series of treks & trail runs – which also raise £11+ million per year for charities.
You’ll get full support all the way so you can set a new goal, and enjoy the wonderful countryside & event atmosphere. If you’re up for a challenge – make it an Ultra Challenge®.
new year deal 🎉
Sign Up for Just £10!
+ FREE Virtual Challenge
& Buy Now, Pay Later Option
Ends 31January ’26
Your Challenge
Your Way
An Ultra Challenge® is for all ages, fitness & experience levels. For teams & individuals; for a charity of your choice, OR just go for it and achieve something special!
No obstacles or mud pools, just wonderful British countryside; full support, a friendly welcoming atmosphere – and your spirit & determination! Distance options to suit all at YOUR PACE.
A special Ultra March® category for ‘determined’ walkers, and NEW for 2026, Ultra Trailblazerz® for ambitious runners.
NEW YEAR DEAL – PAYMENT PLAN OPTION
YOUR CHALLENGE – YOUR WAY
WALK – It’s sociable; enjoy wonderful scenery, cameraderie, and event hospitality at your pace. No need to rush!
JOG – many do and may not class themselves a ‘full-on’ runner. Maybe walk some bits, mix it up, see how it all goes!
RUN – at the front on a clear course – maybe stepping up the distance, or out for a trail run with fantastic support & no cut off time pressure!
Ultra Challenges are for ALL. On our 50 km & 100 km ‘Ultra’ distances, over 50% are female, and there’s a wide range of ages, experience & fitness levels.
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ULTRA MARCH® a popular category for walkers with a ‘goal’ of 100km in < 24 hrs (or 50km <12 hrs) with a bunch of like-minded ‘marchers’!
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ULTRA TRAILBLAZERZ® a NEW entry category for quicker, ambitious runners – with an eye on the clock over a full 100km or 50km.
TRAILBLAZERZ INFO >>
YOUR CHALLENGE – YOUR WAY
100 KM as a continuous Ultra Challenge is tough, but absolutely achievable with good preparation, training – and our support – with rest stops, plenty of food & drink, and expert welfare & safety teams.
2 Day 100 KM ‘daylight’ option with halfway camping (or local B&B). Take on 100km without the overnight stretch if you’re walking!
75 KM – option on some events if you want to step up from your normal 50km.
50 KM – marathon+ distance and a great single day challenge option. Ideal for stepping up to an Ultra and testing yourself!
25 KM – perfect entry point for anyone! A great day out in wonderful scenery – with time to celebrate afterwards!
Trail Marathons (42 km) – classic distance choice for many – with 5 available.
A Series of 10 km /10 mile events at the main Ultra Challenge ‘basecamp’ venues.
Ideal as a ‘taster’ event if you just want a shorter challenge – or maybe to take on whilst a friend or family member takes on a longer challenge!
10 KM / MILE SERIES >>
YOUR CHALLENGE – YOUR WAY
TEAMS – of friends or family can motivate each other, whilst sharing an unforgettable adventure – with a great reason to celebrate! Teams can be of any size, and do the same or a mix of distances & funding options.
INDIVIDUALS – Solo Challengers will feel 100% welcome & safe, and meet new friends enroute. There’s optional ‘Solo Challenger Start Time’ slots to meet up with others if you want to.
YOUR CHALLENGE – YOUR WAY
FOR CHARITY – many support a charity of their choice (600+ are listed). You’ll be amazed how much you’ll be able to fundraise – as friends & family will recognise your ‘ultra’ endeavours!
Choose a charity; set up a JustGiving page – and make your challenge count!
SELF FUND – others just want a high quality challenge, buy their place online, enjoy it – and achieve something special!
CHARITIES INVOLVED >>
Best value MULTI DEALS for 2 or more Self Fund events, with up to 25% OFF.
We encourage the ‘Young‘ to join – with 20% OFF Self Fund prices for ages 24 or less
Minimum 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 accompanied by an adult participant.
NEW – ULTRA TRAILBLAZERZ® for ambitious runners, with an eye on the clock over 100km or 50km. PB’s, course records & prizes for some!
Ultra Challenge® 50km & 100km events are ITRA-certified & recognised as UTMB Index races. Perfect to clock up points & experience!
TRAILBLAZERZ INFO >>
Looking for a high quality event without the hassle or costs of organising it? An Ultra Challenge® is the perfect solution – and we had over 400 company teams join us in 2025.
Your Team will be energised, bonded & motivated on a sociable, accessible, safe, outdoors event – perhaps also supporting your ‘charity of the year’ with engaging fundraising.
FIND OUT MORE >>
Get in touch with details of your Team:
corporate@ultrachallenge.com
Full Support ALL THE WAY
Unrivalled levels of support enables ‘000’s of challengers to ‘Push Themselves Further’. We’ll help you prepare with a Challenge App, training guides & forums – a 50 km or 100 km ‘Ultra’ is tough, but absolutely achievable!
On the day, there are camping options, bus transfers, parking, and baggage transfers. After a warm up & noisy send off, it’s out on a fully signed route, timing & GPS app tracking, marquee rest stops with fantastic food & drink, and expert welfare teams.
A big finish line cheer, with a medal, glass of fizz, T shirt, massage, and finishers meal – and it’s an unforgettable weekend!
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 20 fantastic UK events. Some have stunning coastal paths, others have rolling hills, and a few on historic trails. Each Ultra Challenge® is a unique adventure – to take on at your pace!
2026 CALENDAR
London Winter Walk
24 or 25 January 2026
Kick Start Your New Year!
- Central London
- Full & Half Marathons +10K & 5K
- Walking Only
- Oval Cricket Ground Start / Finish
- Food & Drink
- Medal
- Free Bobble Hat
‘On the Day’ Sign Up Available
London
Winter Walk
24 or 25 January 2026
Kick Start Your New Year!
- Full & 1/2 Marathon, 10km & 5km
- Walk, Hike
‘On the Day’ Sign Up Available
Isle of Wight
Ultra Challenge®
2 - 3 May 2026
- 100km, 50km, 25km, 10 mile
- Walk, Jog, or Run
Jurassic Coast
Ultra Challenge®
16 - 17 May 2026
- 100km, 50km, Marathon, 25km , 10km
- Walk, Jog, or Run
London 2 Brighton
Ultra Challenge®
23 - 24 May 2026
- 100km, 50km, Marathon, 25km
- Walk, Jog, or Run
Lake District
Ultra Challenge®
6 - 7 June 2026
- 100km, 50km, Marathon, 25km, 10km
- Walk, Jog, or Run
Cotswold Way
Ultra Challenge®
13 - 14 June 2026
- 100km, 50km, 25km, 10km
- Walk, Jog, or Run
NORTH YORKS
Ultra Challenge®
New For 2026
20 - 21 June 2026
- 100km, 50km, 25km, 10 mile
- Walk, Jog, or Run
Peak District
Ultra Challenge®
4 - 5 July 2026
- 100km, 50km, 25km, 10 mile
- Walk, Jog, or Run
GOWER PENINSULA
Ultra Challenge®
18 - 19 July 2026
- 100km, 50km, Marathon, 25km, 10km
- Walk, Jog, or Run
South West Coast 50
Ultra Challenge®
Sat 25 July 2026
- 50km, 25km, 10km
- Walk, Jog, or Run
Thames Path
Ultra Challenge®
12 - 13 September 2026
- 100km, 50km, 25km, 10km
- Walk, Jog, or Run
10 KM / 10 MILE 'TASTER' EVENTs
trail marathons in the series
A NEW CHALLENGE FOR 2026?
FOR HASTY HIKERS..
Join an intrepid group attempting to Walk 100 km in 24 hours or under, or 50 km in 12 hours or less. There’s a dedicated 8.30am start – with an experienced Ultra March ‘Pacer’.
FOR AMBITIOUS RUNNERS
A new entry category – TRAILBLAZERZ® is for the more competitive runners – aiming to complete 100 km or 50 km in less than a set ‘time goal’
£20 OFF LAUNCH DEAL!
OUR CHARITY PARTNERS
A record £11+ million of fundraising in 2025!
We’re proud to work with hundreds of UK charities which benefit from the Ultra Challenge fundraising which will exceeded £11 MILLION in 2025.
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 50% OFF standard Reg Fees for ‘Full Sponsorship’ sign ups.
There are also 66 Associate Partner Charities with 25% OFF standard Reg Fees for ‘Full Sponsorship’ sign ups.
Choose a Charity, sign up, and set up your JustGiving fundraising page NOW.
SERIES PARTNERS
OR 600+ OTHER CHARITIES INVOLVED
OUR FUNDRAISING PARTNER
