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Cambridge Map

100km, 50km, 25km

Walk, Jog or Run. 70% off road

A start near the Olympic Park, up the Lea Valley, on through wetlands & countryside - to a Cambridge finish.

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Support all the way

Day & Night - Great Hospitality...

Marquee rest stops en route with FREE food & drink, medics, pace walkers, massage & plenty of cheering!

Your Charity


..for a charity of your choice

Your Challenge can help others. With over 500 charities involved - it's your Challenge - Your way - for Your charity!

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Do it your way...

Epic Walk, Ultra Run, or bit of both

With good preparation, our support, and your resolve - it's is achievable. Push yourself further in 2016!

Individuals Teams

Challenge for all..

..join on your own - or as a team

Individuals will meet others & can join paced groups; teams can help each other. We fully support you all.

A Trail of Two Cities

Weekend 2/3 July 2016

Your journey starts from the moment you sign up. With some training & commitment this Ultra Challenge is an achievable goal for anyone who really wants to push themselves in 2016. A 100km of footpaths and trails joins these two illustrious Cities - but with our full support & hospitality every step of the way, through day & night - alongside your determination, stamina, and resolve - this could be one of the most rewarding weekends you've ever had!

  • Participant web site area – training plans 
  • Saturday 2 July 2016 start.
  • Hackney Marsh start, near Olympic Park 
  • Choose your start time
  • Runners from 7.00am, Walkers from 7.30am
  • FREE hot food at 50km/75km /100km
  • FREE snacks & drinks at rest stops
  • Fully signed route – arrows + glow sticks
  • Route maps & GPX files
  • Pace walkers, medics, doctors, massage 
  • Optional baggage transfer service to finish
  • Finish in Cambridge - supporters welcome!
  • Plenty of parking
  • Shuttle busses to station at finish
  • Medal, T-shirt & glass of fizz at the finish

- Sign up to the 100km for £79

- & fundraise for a charity of your choice -  Places now sold out

- 400+ charities to choose from

- Half Challenge options (~50km) 

- Quarter Challenge option (1st ~25km) 

- Join as an Individual - or create a Team

How will you take it on?

For PAST PARTICIPANTS of our Ultra's CLICK HERE for 'ANOTHER ULTRA' form. Then sign up with a special discount or SELF FUND.

Our Ultra Challenge Series Partners. Over 500 other charities also involved.

Our London 2 Cambridge Challenge Charity Event Partners...