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100 Challenge Series

Push yourself...

100km. Walk it, Jog it, or Run it

Bigger & better for 2016 with NEW 2 Day & 50km options. Full support all the way. Varied route - 60% off road.

London 2 Brighton Challenge

28/29 May 2016 - Walk, Jog, or Run

One of UK’s great endurance events. Most will walk it, many will jog parts, and some will run the full 100km. All 3,000 participants will have a special reason to take on the Challenge, and whatever yours is, it will be a unique test of stamina & determination.

This Ultra Challenge is tough, but achievable - and an unforgettable journey of self discovery. We' ll fully support you all the way, so why not join us - push yourself further - and it might be the most rewarding May Bank Holiday weekend you've had in years! 

  • WALK IT - at your own pace ~ 24+ hours 
  • JOG IT - run a bit, walk when it suits you!
  • RUN IT - fully supported 'Ultra Marathon'
  • Varied 100km route - 60% 'Off Road'
  • Join as an Individual or as a Team
  • 1st & 2nd Half Challenge options available
  • NEW 2 DAY OPTION - sleep/camp at half way
  • Richmond on Thames start 
  • FREE hot meals, drinks & snacks en route
  • Marquee rest stops every ~12.5km
  • Pace walkers, physios, massage, medics ++
  • 100km run trophy - record is 9 hrs 12 mins!
  • Fundraise for a charity of YOUR choice
  • Self fund option for our Past Participants 

You can sign up online today ...

Call 0207 609 6695 to get in touch or email

Our other Ultra Challenges ...

171x171 Iow

30 Apr -1 May

Around the Island
NEW 2 Day Option

Around the coastal path - 106km. Stunning scenery, Needles & cliff top views! 1/2 & 1/4 Challenge options as well. May Bank Holiday weekend...

171x171 L2cc

2-3 July '16

A Trail of 2 Cities
Back for 2016..

Starts close to the Olympic Park - up the fascinating Lee Valley - on through scenic countryside. Full 100km Challenge & 50/25km options...

Sc 171x171

27-28 Aug '16

NEW for 2016
Stunning Scenery!

An Eastbourne start, Beachy Head, Seven Sisters, South Downs Way, Brighton mid point, and Arundel finish.100km or 50km options...

171x171 Tpc

10-11 Sep '16

Festival of events
New 2016 Options

Beautiful & historic scenery. Putney Bridge to Henley 100km or 50/25km legs. NEW Oxford to Henley Challenge & Thames Bridges Trek option


26/29 Aug 2016

Amazing adventure
A Real Challenge!

2 marathon Treks for 200 adventurers over 2 days on the famous Laugavegurinn trail. Fantastic scenery, wilderness camping under midnight sun.


Ultra Challenge Series Partners. 500 other charities involved...

London 2 Brighton Challenge Charity Event Partners...

The Ultra Challenge Series will raise over £7.5 million for charities