Grim Challenge

The GRIM is one of the original muddy/trail/obstacle races with a history that dates back to 2003. After a COVID absence in 2020 it bounced back strongly in 2021, growing to more than 1000 runners taking part in the event in 2022. Now with two events in the series, we expect Grim Challenge popularity to continue to grow in 2023.

The event returns in 2023 in much the same format: the route takes you over an Army vehicle testing ground in Aldershot with two distance options, a main race 8-miler and a lighter version over a shorter 4-mile course.

Although the 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 through 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 is aptly named when you have run it.