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Jan 11

The GRIM Challenge

January 11, 2026

31 – 37

About the event:

GRIM is a tough trail race in which you will certainly find yourself at times cold, wet and dirty, it is not an obstacle race, it’s a running event. We don’t build any ramps, walls or swings on the course. All the obstacles are natural, formed by tanks driving over the route or by incessant rain in the weeks leading up to the event. Of course at this stage we can’t guarantee the rain but it’s never let us down before! In a few places you will be crawling under cargo nets or wading though waist high water. The distance may not sound daunting but don’t take this lightly, on a cold December morning, the GRIM is a challenge and you will think it aptly named when you have run it.

Entries close on December 3 at NOON.

Charity details:

Our 2024 charity partner Combat Stress is back for 2025! If you want to make your run count, select the check box when you enter and a member of the Combat Stress fundraising team will be in touch!

Combat Stress is the UK’s leading charity for veterans’ mental health. For over a century, it has helped former servicemen and women with mental health problems such as post-traumatic stress disorder (PTSD), anxiety and depression. Today its provides specialist treatment and support for veterans from every service and conflict, focusing on those with complex mental health issues.

The work it does is life-changing and often life-saving. We are delighted to be working and supporting the work Combat Stress at the GRIM Challenge. The charity will have a number of runners raising money for its important work through the event, if you would like to join them send  an e-mail to events@combatstress.org.uk

Plus points to the event:

  • Fabulous medals to all finishers
  • GRIM beanie to all finishers
  • HIGH5 energy products on course and at finish
  • Free digital downloads of race photos
  • Full medical back up
  • Secure baggage storage
  • On site urinals and portable toilets

Minimum age for runners:

8 Miles 16 years old; 4 Miles 13 years old

 

For more details on the event, please click here.

Details

Venue

Organiser

Other

Type of Event
Running
Distance 1
4 miles
Distance 2
8 miles