Rush Weekend - Nuclear Races

Essex, United Kingdom • 10-11 May 2025

Rush Weekend by Nuclear Races is an award-winning obstacle race event held at the Secret Bunker Estate in Essex. Scheduled for May 2025, it offers two main course distances: a 6km race suitable for participants aged 13 and over, and a 12km race for those 16 and older. The 12km+ British OCR Championships also take place on an extended 12km course with over 60 mandatory obstacles.

The courses feature a mix of natural and man-made challenges, including the Deathslides, Para-plunge zip-lines, and Swing A Ding obstacles around a lake zone. The event is chip-timed, non-lap, and encourages participants to attempt as many obstacles as they wish, with no penalties for skipping. Participants receive a finisher medal, top, and refreshments. Visit the organization's website for the most recent information.

Always visit the organization's website for the most recent information!

Race information

12 km
6 km

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 Dirty Rotten Scramble is Britain's toughest trail run, held in the South of England, specifically in Kent. Established in 2015, this challenging event offers 5k, 10k, and 30k courses featuring rugged terrain with mud, hills, and natural obstacles. Participants will encounter water challenges including wading and swimming, with options available for non-swimmers.

The race is chip-timed, providing official finish times and results, and includes free photos. Amenities include water stations, refreshments, free parking, on-site toilets, and food and drinks at the finish line. Finishers receive a custom medal and a memorable muddy hug, making it a tough but fun outdoor adventure. Visit the organization's website for the most recent information.

The London South East Spartan Trifecta Weekend takes place at Pippingford Park in East Sussex, UK, known for its rolling hills, scenic countryside, and challenging terrain. This event features multiple race distances including the Sprint (5K with 20 obstacles), Super (10K with 25 obstacles), Beast (21K with 30 obstacles), and the Ultra (50K with 60 obstacles). The course is renowned for its tough obstacles and the likelihood of getting wet, adding to the challenge. The weekend also includes kids' races and a 12-hour Hurricane Heat event. The venue has previously hosted the European Championships, promising a high-quality Spartan racing experience. Visit the organization's website for the most recent information.

The Zombie Run is a unique and fun running event held at Colchester Sports Park in Essex. Participants run up to ten laps of a flat, one-mile track, with the challenge of outrunning a "Zombie Horde" pacers who gradually increase their speed from a 15-minute mile to a 5-minute mile. The last runner remaining wins the race.

Fancy dress and makeup are encouraged to enhance the spooky atmosphere. The event features a family-friendly vibe with an event village offering food, drinks, and activities. All finishers receive a medal, and the winner earns a bespoke Zombie Run trophy.

The run supports The Robin Cancer Trust, raising funds for cancer education and support. Visit the organization's website for the most recent information.

"Fallout 2025" is an obstacle course event held on November 1st at a permanent site featuring challenging natural and man-made obstacles across farmland, woodland, lakes, and bogs. Participants can choose between 6 km and 12 km distances, with the latter consisting of two laps of the 6 km course. The event is suitable for all fitness levels, with no penalties for missed obstacles, and includes features like chip timing, water stations, and a survivor medal. The course is designed to be unpredictable, with the last run ending around 3:30 pm due to fading light. The atmosphere is rugged and adventurous, emphasizing fun, challenge, and resilience. Visit the organization's website for the most recent information.

The UK Wife Carrying Race will take place in Dorking on Sunday 8 March 2026.