The Challenge is an off road and self navigated challenge through the picturesque Hertfordshire countryside around Stevenage.


This is the 26th year of this event.


RUN or WALK our classic off-road courses

Half Marathon, 18miles, Full Marathon or 50k Ultra.


The event will be held under ARC rules.


This year the Challenge will be held on Sunday 19th of July 2020.


Participants will be free to start shortly after 08:00 and before 10:00 and must check in at the Start before leaving.


Mass starts will be.
8:00 Ultra
8:15 Full Marathon
8:30 18 mile
8:45  Half Marathon

19:00 Finish/Cut-Off


Number pickup is at registration on the day.


Final Instructrions are available for download here and will be emailled out.






All distances are £20 (£18 for affiliated runners)


All finishers will receive a medal based on the Challenge banner with the ribbon colour depending on distance.


Entries via ATW here.


Entries on the Day accepted.



Event Ethos


Our event is an individual challenge in a friendly non competitive environment.




Dogs are welcome but please leave them outside the buildings.



The start and finish are at

Marriotts Sports Centre

Brittain Way




Start Location


Contact Us


You can email us at

Social Media


For regular updates visit the

Challenge Facebook Page.


We are also on Twitter



And Instagram






 For old school challengers the maps are available to download and print.

Please print your own copy and bring with you. We will not have copies.


Half Marathon Map

18 Mile Map

Marathon Map

50k Map




We provide GPX files of the routes for those of you who like your gadgets. The Challenge means different things to different people, for some it's the navigating, for some it's the distance, and for some it's just the pleasure of a day out with friends. Please note, these files have been created using mapping tools and not fully tested in the field.


Files updated in 2018 and provided as is.

Clockwise GPX Files


Route Descriptions


Our comprehensive route descriptions are availble to download.

Please print your own copy and bring it with you. We will not have copies.


Files Updated on 14th July 2019, new descriptions will be issued for 2020 once the route has been checked in early July.


Half Marathon Description

18 Mile Description

Marathon Description

50K Description




Each checkpoint will have water, juice, cakes and busicuits. There will also be toilets. You can fill up your water bottles and please BRING YOUR OWN CUP OR BOTTLE cups will not be provided.


Event Village


We will have a variety of facilities at the Start/Finish, including sports massage, a mobile bar, Ice cream and burgers. More information available on the Facebook page and will appear here soon.


2019 Results


2018 Results