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The GRIM Challenge The GRIM Challenge The GRIM Challenge The GRIM Challenge

The GRIM Challenge

Aldershot, Hampshire

Eelmoor Rd, Aldershot GU11 2HL, UK

Sun 5th December 2021

2 races

£22.26 - £29.68

Organiser's Description

The GRIM is one of the original muddy/trail/obstacle races that dates back to 2003. We took over the running of the event in 2019 when it was threatened with closure. This will be our second time hosting the event and while we will fine-tune some of the delivery, we will continue to use the same course and the same format, with a main race over 8 miles 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 cold, wet and dirty at points, we don't build any ramps, walls or swings on the course, all the obstacles are natural obstacles formed by tanks driving over the route or incessant rain in the weeks leading up to it. In a few places you will be crawling under cargo nets or wading though waist high water but the GRIM is a running race, albeit a challenging one.


  • The GRIM Challenge


    8 Miler

  • The GRIM Challenge


    4 Miler



  • The GRIM Challenge


    8 Miler

  • The GRIM Challenge


    4 Miler


What's Included

- Finisher Medal & GRIM Buff
- Event Timing
- Free onsite parking
- Monitored baggage drop
- Onsite toilets
- Water stations
- Free race photography
- Medical race support

Race t-shirts can be purchased alongside your event ticket for £10, these will be available to collect on race day. There will also be a limited number of additional t-shirts available to purchase on the day for £15, but we can't promise we will have all sizes.

  • - Bespoke Medal to all finishers
  • - GRIM Buff to all finishers
  • - Free race photography

How to Get There

By Car
Leave the M3 at junction 4 and take the A331 Aldershot.
After approximately 5 miles, take the A323 Aldershot turnoff. Follow signs for Aldershot town centre A323. Carry straight on until you get to the Naafi (Burger King) roundabout. Take the 3rd exit. Burger King restaurant is on your right. At next roundabout turn right, A323 Fleet. At the large Wellington Roundabout, Wellesley Road, take the 2nd exit signposted Church Crookham & Rushmoor Arena. After 500m, take the first right turn signposted Royal Garrison Church & Rushmoor Arena. After 150m take the first left signposted Rushmoor Arena and Aldershot Raceway. All these roads will have large yellow GRIM Car Park signs on them.

Sat Nav
GU11 2HL – follow the signs rather than your sat nav when in the area.

By Train
Exit Aldershot Station and walk straight on down Station Road (following signs for the Information Centre) until you reach a set of lights. Turn right. This road leads to the Naafi roundabout. Follow ‘By Car’ instructions from there.
The distance from the train station is 2.5 miles. There is a taxi rank outside the station. Please allow enough time for your journey. We suggest that you arrive at least an hour before the event.


There is free on site parking available!
There are plenty of parking spaces available at the site. Please note that while we can park you right at the venue, there is only one entrance and exit so there might be a short queue while you exit the site.


Army Tank Training Ground, Aldershot, GU11 3HF

Course Details

The course is tough, hilly and muddy off road on army training grounds

Both race distances share the same start and finish. They follow the same circular route until three miles when the 4-miler turns off and heads back to the finish while the 8-mile runners continue on to a second different loop of these military training grounds.


  • MInimum Ages

    8 Miles 16yrs/ 4 Miles 13yrs (on 05/12/2021)

  • Early Bird Prices

    Prices go up on 1st November 2021

  • Can we enter as a team?

    We welcome groups or teams, everyone has to complete the distance individually

  • Start Time



Entries will close the Monday before the event date. Your registration pack will need to be collected at Race HQ on the morning of the event.


Medals to all finishers

4miles: First 3 male & female, first M/F Masters 40, 50

8 Miles: First 3 male & females, first M/F Masters 40, 50

Other race Information

It is important that you are fit to run and have not experienced any Covid-19 symptoms in the 14 days leading up to the event.

Race Numbers
Please wear your number pinned to the front of your vest.

Free on site parking available.

Changing and Bag Storage
A supervised baggage area will be available at Race HQ

Toilets will be provided for the event.

Distance Markers
Every mile

Traffic Free:

Water Stations
Every 4 miles

Dogs allowed?

Buggies allowed?

Wheelchair suitable?

Refunds, Transfers And Deferrals
Once your entry is accepted refunds are not possible, however, if you unable to run on the day, you may transfer your entry to another runner or defer your entry to the following year’s event. To transfer or defer your entry you need to send an e-mail making the request to [email protected] at least 48 hours before the race takes place. Requests made after this time will not be accepted.

Event Cancellation
Your entry fee (less the non refundable admin fee) will be refunded if event is cancelled by the organiser due to Covid restrictions.


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Aldershot, Hampshire


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