Ultra Challenge®
UK's #1 Treks &
Trail Challenges
10 KM, 25 KM, 50 KM, or 100 KM
FOR ALL EXPERIENCE LEVELS
AT YOUR PACE..
Take on an Ultra Challenge as a Walk, Jog, or Run. With distance options to suit all, and full support all the way, they’re for EVERYONE! Unique events to boost wellbeing, get in shape, test yourself, or bond with friends on an active adventure – and achieve something special.
On stunning coastlines, or through magnificent countryside – you’ll get rest stops with food & drink, medics, massage, camaraderie, optional charity fundraising, and an unforgettable weekend!
Your Challenge -Your Way
24 Amazing Challenge EVENTS
The UK’s biggest & best series of treks & trail challenges – with over 40,000 taking part in 2026, and raising £12+ million for charities.
Full support means you can set a new goal, and enjoy the wonderful scenery & event atmosphere. If you’re up for a challenge – make it an Ultra Challenge®.
1 Event Left in 2026…
+ 3 NEW EVENTS FOR 2027
push yourself
further!
An Ultra Challenge® is for all ages & experience levels. For teams & individuals; for a charity of your choice, OR just go for it and challenge yourself! Discounts for ages under 25.
A welcoming community, friendship, great hospitality, and fantastic routes with a range of distance options. There’s also an Ultra March® category for ‘determined’ walkers, and Ultra Trailblazerz® for ‘ambitious’ runners. For 2027 there’s a special 100 MILE option to celebrate the 15th anniversary of the Thames Path Challenge!
YOUR CHALLENGE – YOUR WAY
WALK – hike or trek! It’s sociable! Enjoy wonderful scenery, camaraderie, and event hospitality at your pace. No need to rush.
JOG – many do and may not class themselves a ‘full-on’ runner. Maybe walk 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!
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Ultra Challenges are for ALL. On our 50km & 100km ‘Ultra’ distances, over 50% are female, and – there’s a wide range of ages, experience & fitness levels.
&
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’!
+
ULTRA TRAILBLAZERZ® a NEW entry category for quicker, ambitious runners – with an eye on the clock over 100km or 50km.
TRAILBLAZERZ INFO >>
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 can 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.
YOUR CHALLENGE – YOUR WAY
100 KM as a continuous Ultra Challenge is tough, but absolutely achievable with good preparation 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 50km.
50 KM – marathon+ distance and a great single day challenge option. Ideal for stepping up to an Ultra and testing yourself!
25 KM – an 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
+ 100 MILE 2027 Thames Path 15th Anniversary Special!
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 to take on whilst a friend or family member takes on a longer challenge!
10 KM / MILE SERIES >>
YOUR CHALLENGE – YOUR WAY
SELF FUND – if you want a high quality challenge, buy a place online, enjoy it – and achieve something special!
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!
CHARITIES INVOLVED >>
MULTI DEALS – available if you take on 2 or more events (Self Funding) – with up to 25% OFF
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AGES 24 OR LESS – 20% OFF Self Fund prices
AGES 16 OR LESS – 50% OFF Self Fund prices & perfect for families!
Minimum Age Rules – 18 for 100km & 75km / 16 for 50km / 14 for 25km & marathon / 12 for 1/2 marathon / 8 for 10km. Under 18’s – need to be accompanied by an adult participant.
Looking for a high quality event for colleagues? An Ultra Challenge® is the perfect solution – and over 500 company teams will join us in 2026.
Your Team will be energised, motivated & bond on a sociable, accessible and safe, outdoors event – perhaps supporting your ‘charity of the year’ with engaging fundraising.
FIND OUT MORE >>
Contact us with details of your Team:
corporate@ultrachallenge.com
ULTRA Supportive
ULTRA Sociable...
ULTRA Satisfying!
We’ll help you prepare with a Challenge App, training guides & forums – 50 km or 100 km is tough, but absolutely achievable!
On the day, there are camping options, bus transfers, parking, and baggage services. A warm up & noisy send off, and out on a fully signed route; timing & GPS app tracking, marquee rest stops, fantastic food & drink, supporter zones, and expert welfare teams.
A big finish line cheer, with a medal, glass of fizz, T shirt, massage, and finishers meal. An unforgettable ‘Ultra’ 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.
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. We’ve upgraded our system, with a ‘Live Trail APP‘ with GPS Tracking – which you can share in ‘real time’ with family & friends – without draining your phone’s battery + get info on the route lying ahead!
Our Rest Stops are simply – 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 2026.
Ultra Challenge® rest stops enable 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!
autumn deal
+ FREE Virtual Challenge
+ FREE 50% OFF Tech T Shirt
+ Multi Deal Split Payment
Ends 30 Nov.
THE EVENTS
From the Isle of Wight to the Scottish Borders, an Ultra Challenge® is an adventure to take on Your Way, at Your Pace!
100 MILE OPTION
It’s the 15th Anniversary of the Thames Path Challenge. To celebrate, and its £20 million+ of fundraising, there’s a special challenge. Registration is OPEN!
2026 CALENDAR
London Halloween Walk
Sat 31 October 2026
- Central London
- 25km or 10K Loop
- Oval Cricket Ground Start / Finish
- Finishers Meal
- DRESS TO SCARE!
2027 CALENDAR
London Winter Walk
30 or 31 January 2027
- Full & 1/2 Marathon & 10K
- + Family 5K
- Bobble Hat
- Oval Cricket Ground Start / Finish
- Hot Food & Drink
2027 CALENDAR
10 KM / 10 MILE 'TASTER' EVENTs
trail marathons in the series
A NEW STYLE CHALLENGE?
Join Our Team?
OUR CHARITY PARTNERS
Hundreds of UK charities benefit from the Ultra Challenge fundraising, which will exceed £12 million in 2026.
‘Series Partners’ are major UK’s charities – support one, and it’s 50% OFF standard Reg Fees on ‘Full Sponsorship’ sign ups.
There are also 70 ‘Associate Partner’ Charities with 25% OFF Reg Fees – alongside 600+ other charities involved.
Choose a Charity, sign up, set up a JustGiving fundraising page – and make your Ultra Challenge really count!
Series Partners..
.. 50% OFF Reg Fees!
OR 600+ OTHER CHARITIES INVOLVED
OUR FUNDRAISING PARTNER
