Grim Challenge
Aldershot, United Kingdom • 7 Dec 2025
The Grim Challenge is a renowned winter trail running event held at the Army Tank Training Area in Aldershot, Hampshire. Established in 2003, it features two race distances: a challenging 8-mile main course and a shorter 4-mile option. The route traverses rugged army vehicle testing grounds, offering natural obstacles such as thick mud, waist-high water, and hills, shaped by tank tracks and weather conditions rather than artificial structures.
Known for its tough, cold, and wet environment, the race tests endurance and grit. Participants receive medals and Grim beanies, with on-course support including energy products and medical backup. The event supports the Combat Stress charity for veterans' mental health. Visit the organization's website for the most recent information.
Always visit the organization's website for the most recent information!
Race information
Mud & Obstacle runs nearby
The MacTuff Really Muddy 10k and 5k event in London South East is a challenging and fun muddy run designed for adults and supervised teenagers. The course features varied terrain including mud, water, and obstacles, promising a wet and muddy adventure that tests all abilities. Participants can choose between 5km and 10km distances, with a 3km kids’ challenge also available on the same day. The event offers free parking, free spectator access, and complimentary photos. Entrants receive a MacTuff technical T-shirt and a finisher’s medal, making it a memorable and rewarding experience for individuals and teams alike. Visit the organization's website for the most recent information.
The Southampton Fun Inflatable 5K Obstacle Course is a lively and family-friendly event held at the Sport and Wellbeing Centre, University of Southampton. Participants can choose from distances of 2.5k, 5k, 10k, or 15k, featuring 15 to 90 inflatable obstacles depending on the course length. The 5K course includes 30 bouncy, oversized obstacles with exciting names like Start Mountain, The Crawler, and Temple of Doom, spread across a 2.5k loop repeated as needed. The event boasts a fun atmosphere with pumping music zones, friendly staff, and on-site food and drink vendors. It encourages group participation with discounts for families, friends, and charities, making it an epic day out for all ages. Visit the organization's website for the most recent information.
The Brighton Fun Inflatable 5K Obstacle Course is set in Stanmer Park, East Sussex, offering a lively and family-friendly atmosphere. Participants can choose from distances of 2.5k, 5k, 10k, or 15k, featuring 15 to 90 inflatable obstacles depending on the course length. The 5K course includes 30 large, bouncy obstacles with exciting names like Start Mountain, The Crawler, and Temple of Doom, spread over two laps of a 2.5k circuit. The event boasts five music zones to energize runners and is suitable for all ages, with children aged 5-15 requiring adult supervision. Additional features include group discounts, charity ticket options, on-site food vendors, and hydration stations, making it a fun and engaging day out for families and friends. Visit the organization's website for the most recent information.
The Windsor Fun Inflatable 5K Obstacle Course is set to take place at Windsor Racecourse in Berkshire. This exciting event features multiple distances: 2.5k, 5k, 10k, and 15k, with participants tackling inflatable obstacles—ranging from 15 to 90 depending on the distance chosen. The 5K course includes 30 large, bouncy obstacles spread over two laps, enhanced by five music zones to energize runners. Suitable for adults and children aged 5 and up (with adult supervision), the event offers a fun, family-friendly atmosphere with food vendors, hydration stations, and spectator areas. Group and charity discounts are available, making it a lively and inclusive day out. Visit the organization's website for the most recent information.
UK Wife Carrying Race
Dorking - 18 mi from Aldershot • 8 Mar 2026
The UK Wife Carrying Race will take place in Dorking on Sunday 8 March 2026.
London West Spartan Trifecta Weekend
Hambleden - 23 mi from Aldershot • 16-17 May 2026
The London West Spartan Trifecta Weekend takes place in Henley on Thames, UK, offering a challenging obstacle course race experience across historic landmarks and a scenic riverside course. The event spans two days and features multiple race distances: the Sprint (5K with 20 obstacles), the Super (10K with 25 obstacles), and the Beast (21K with 30 obstacles). There is also a Kids Race for ages 1-3 km with obstacles. Participants enjoy a vibrant atmosphere with well-equipped facilities and engaging, fun obstacles. The event encourages team participation and offers discounts for service members, making it a dynamic and inclusive sporting weekend. Visit the organization's website for the most recent information.