Grim Challenge

JAN
11
2026
Take on winter trails at the tank training area near Aldershot with mud, water crossings and waist high wades plus cargo net crawls. Choose 4 or 8 mile routes, grab a medal and GRIM beanie and support Combat Stress.
Sun 11 Jan 2026
4 Miles 8 Miles

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Event overview

The Grim Challenge is a winter trail running event held on army vehicle testing ground at the Army Tank Training Area, Fleet Road, Aldershot. The event offers two distances:

  • 4 miles
  • 8 miles

The race uses natural terrain and features mud and water crossings; some sections may require crawling under cargo nets or wading through waist-high water. The organiser states the course uses natural obstacles formed by vehicle tracks and weather rather than built obstacles. The event’s charity partner is Combat Stress; charity places require fundraising commitments (4-mile charity place: raise £75, 8-mile charity place: raise £100). Prizes are awarded to the first three male and female finishers in the 4-mile race, and to the first three male and female finishers plus masters categories (40, 50, 60+) in the 8-mile race. Minimum ages are 13 for the 4-mile race and 16 for the 8-mile race.

Logistics and amenities

Finisher items include a medal and a GRIM beanie. The event provides HIGH5 energy products on course and at the finish, free digital downloads of race photos, full medical backup, secure baggage storage, on-site urinals and portable toilets. T-shirts are available at £13 (£15 on race day), unisex sizing XS to 2XL with listed chest and length measurements. Two car parks are provided off Fleet Road; both are a 5-10 minute walk from the start village and marshals will direct arrivals. Visit the organization's website for the most recent information.

8 mi
8 Miles
4 mi
4 Miles
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