The UK’s biggest & best series of treks & trail runs – with over 40,000 taking part in 2026, and raising over £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®.
Push Yourself Further – at Your Pace! in the best of Britain’s countryside! There’s an Ultra Challenge® for EVERYONE in 2027.
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® an entry category for quicker, ambitious runners – with an eye on the clock over 100km or 50km.
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.
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.
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!
SELF FUND – if you want a high quality challenge, buy a place online, get training – and achieve something special!
FOR CHARITY – many support a charity of their choice (600+ are listed). You’ll be amazed how much you can fundraise – as friends & family will recognise your ‘ultra’ endeavours! Choose a charity; set up a JustGiving page – and make your challenge count!
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 have joined 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.
Challenge events for all ages, fitness & experience levels. For teams of friends or colleagues & for individuals; for a charity of your choice, OR just do it for yourself and achieve something special! You’ll get full support all the way; lots of food & drink; camaraderie & friendship, a unique welcoming event atmosphere.
With 22 events; 25 km & 50 km choices; 100 km continuous challenges – or in ‘daylight’ over 2 days; a few trail marathons; and a dozen 10K taster events. There’s an ULTRA MARCH® category for determined walkers – and TRAILBLAZERZ® for ambitious runners.
