Nuclear Fallout 12K @ Kelvedon Hatch Secret Nuclear Bunker, Brentwood, Essex, United Kingdom on 12 November 2016

Deathslide in the cold

Award Winning Nuclear Fallout is our beast…

The wetter, colder and muddier race; the one you need to train for – take it for granted and it’ll bite you. It’s our last event of the year, so we throw everything at it – every obstacle Nuclear has, is included and the 6km and 12km courses […]

3rd Annual Jacobsburg 5 & 10 Mile Trail Race @ Jacobsburg State Park, Wind Gap, PA, United States on 22 May 2016

Sisters Finishing

Looking for a challenging, fun trail race in a beautiful setting? The Jacobsburg 5 & 10 Mile Trail Race has technical single track, open fire roads, hills and beautiful scenery. Set in Jacobsburg State Park’s 1,168 acres, this trail race in its second year is sure to please! Participants in the 10 mile race see […]

NUCLEAR FALLOUT 6K @ Kelvedon Hatch Secret Nuclear Bunker, Brentwood, Essex, United Kingdom on 12 November 2016

Award Winning Obstacles

Nuclear Fallout is a 6K gritty obstacle race on muddy Essex farmland, heavily loaded with 70+ natural & unique, high quality, big man-made obstacles designed & built to challenge all fitness abilities. Winners of four awards & UKs best overall mud & obstacle races 2015; expect epic mud & big but achievable obstacles – Deathslide, […]

NUCLEAR RUSH @ Kelvedon Hatch Secret Nuclear Bunker, Brentwood, Essex, United Kingdom on 14 May 2016

Voted UK's BEST INDIVIDUAL OBSTACLE 2015

NUCLEAR RUSH WEEKEND – Saturday 14th & Sunday 15th May. Nuclear Rush is a chip-timed 6/12k gritty obstacle race on muddy Essex farmland, heavily loaded with 70+ natural & unique, high quality man-made obstacles designed & built to challenge all fitness abilities. Winners of four awards including UKs best overall mud & obstacle races 2015; […]

NUCLEAR BLAST @ Kelvedon Hatch Secret Nuclear Bunker, Brentwood, Essex, United Kingdom on 17 September 2016

Project M.U.D

Nuclear Blast is a 5km obstacle loaded multi-lap course over mixed, muddy terrain suitable for all levels of fitness. Fun, exhilarating and achievable, it’s the night-time Blackout course but in daylight! Excellent introductory experience for first time obstacle racers or seasoned racers wanting to push their limits. • Run as many 5km daytime laps as […]

NUCLEAR RUSH @ Kelvedon Hatch Secret Nuclear Bunker, Brentwood, Essex, United Kingdom on 14 May 2016

Voted UK's BEST INDIVIDUAL OBSTACLE 2015

NUCLEAR RUSH WEEKEND – Saturday 14th & Sunday 15th May. Nuclear Rush is a chip-timed 6/12k gritty obstacle race on muddy Essex farmland, heavily loaded with 70+ natural & unique, high quality man-made obstacles designed & built to challenge all fitness abilities. Winners of four awards including UKs best overall mud & obstacle races 2015; […]

NUCLEAR OBLIVION @ Kelvedon Hatch Secret Nuclear Bunker, Brentwood, Essex, United Kingdom on 15 May 2016

The Ultimate Endurance

4 Nuclear laps…can you #GoBeyond? WINNER OF THE TOUGHEST OCR IN THE UK 2015 Oblivion 2016 is 48km of endurance obstacle racing. It’s the 2015 Mudathon distance with an even BIGGER twist. Designed to challenge the fastest and fittest obstacle race athletes out there; it’s our most brutal & unforgiving event. There’s 9 hours to […]

NUCLEAR BLACKOUT @ Kelvedon Hatch Secret Nuclear Bunker, Brentwood, Essex, United Kingdom on 17 September 2016

Probably The Best Saturday Night Out In Essex

WINNERS OF BEST OVERALL MUD & OBSTACLE EVENTS 2014/15 Blackout is a 5km multi-lap obstacle loaded Night Race. This race will launch you out of your comfort zone. It ‘ll lead you in unknown territories, testing all of your senses to the maximum as you negotiate endless & overwhelming obstacles by the light of a […]

NUCLEAR ROOKIES @ Kelvedon Hatch Secret Nuclear Bunker, Brentwood, Essex, United Kingdom on 14 May 2016

Nuclear Rookies #lovemud

OBSTACLE RACING FOR CHILDREN – Saturday 14th & Sunday 15th MAY 2016 Nuclear Rookies are fun, pumped-up muddy obstacle courses for 4-14 year old kids of any fitness level. Rookies can test their skills on a specially designed fun 1.5/3km course filled with around 15 obstacles & guaranteed Nuclear M.U.D! Rookies will climb in & […]

Clif Bar 10 Peaks – Brecon Beacons @ YHA Danywenallt, Powys, United Kingdom on 10 September 2016

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89km/ 4800m ascent/ 24 hours

Starting from race headquarters in Talybont-on-Usk, you will head out to the western extreme of the course, the Black Mountain, traversing along the way some spectacular ridgelines, tackling some torrid climbs and passing over 2 of the 10 highest peaks (Fan Fawr and Fan Llia). There will be 3 feed […]

St Albans Walking Half Marathon @ Verulamium Park, St Albans, Hertfordshire, United Kingdom on 12 June 2016

Walking Half Marathon Start

We are proud to offer the only chip-timed Walking Half Marathon in the country, for those who want to take on the challenge of a Half Marathon but at their own pace.

Starting and finishing in Verulamium Park, the St Albans Walking Half Marathon will take you through the stunning country lanes of St Albans. […]

St Albans Half Marathon – 5k Race @ Verulamium Park, St Albans, Hertfordshire, United Kingdom on 12 June 2016

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With a route around the stunning Verulamium Park, this 5k is perfect for anyone! Whether you’re a budding athlete looking to beat your personal best or new to running and wanting to tackle a shorter distance, our marshals will cheer you on and entertain you with their fancy dress the whole way round. And the […]

Incathon Race to Machu Picchu @ Machu Picchu, Peru on 07 July 2016

Are you up for the challenge?

In addition to the Official 26.2mi Inca Trail Marathon, Erik’s Adventures also offers a shorter race with all the full course benefits that will allow runners of all abilities to compete and run on the Inca Trail all the way to Machu Picchu! The specially designed trail race course is is an abbreviated distance of […]

Cossatot River Trail Run @ Cossatot River State Park, Wickes, AR, United States on 17 October 2015

Arkansas park trail running marathon

Run starts at Brushy Creek off State Hwy 246 and Ends at the Visitor Center off State Hwy 278. Participants will be shuttled to the north end of the trail to start. 3 Aid stations along the trail run will have necessary items for refueling. This is a fun, scenic, and challenging course. Race is […]

Bath Running Festival Marathon @ University of Bath, Bath, Avon, United Kingdom on 26 July 2015

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A tough and challenging marathon around the hills of beautiful Bath. Exploring little known trails, the route takes in all the big hills and reveals beautiful views of the city from all the best aspects.

11 Feed Stations around the course with a wide variety of sweet and savoury food, as well as water, means […]

Bath Running Festival – Very Long Half Marathon @ University of Bath, Bath, Somerset, United Kingdom on 26 July 2015

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A tough and challenging marathon around the hills of beautiful Bath. Exploring little known trails, the route takes in all the big hills and reveals beautiful views of the city from all the best aspects. As the name suggests, this is a little longer than a half marathon, coming in at 25km.

7 Feed Stations […]

Bath Running Festival 10km @ University of Bath, Bath, Somerset, United Kingdom on 26 July 2015

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A tough and challenging marathon around the hills of beautiful Bath. Exploring little known trails, the route takes in all the big hills and reveals beautiful views of the city from all the best aspects.

Custom medals for all finishers and LIVE results!

There are also marathon, half marathon, 5km and 300m races taking place […]

Spartan Race UK @ Glanusk Park, Crickhowell, Powys, United Kingdom on 20 June 2015

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Reebok Spartan Race, voted Best Obstacle Race in 2014 by racers worldwide, is the world’s leading obstacle racing series and the first of its kind to have global rankings. Spartan Race integrates obstacles with the natural terrain to create the best racing experience possible. Each course is unique, so racers never compete on the same […]

Spartan Race South Wales Super @ Glanusk Park, Crickhowell, Powys, United Kingdom on 21 June 2015

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Reebok Spartan Race, voted Best Obstacle Race in 2014 by racers, is the world’s leading obstacle racing series and the first of its kind to have global rankings. Spartan Race integrates obstacles with the natural terrain to create the best racing experience possible. Each course is unique, so racers never compete on the same course […]

Run Blue Mountains @ Beaver Valley Community Centre, Thornbury, Ontario, Canada on 18 October 2015

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This “run through Apple Country” features 5K, 10K and Half Marathon courses that wind their way through Thornbury and Clarksburg, then out into the apple country of the beautiful Beaver Valley (with views from the half marathon course out over Georgian Bay as well) then back to the Beaver Valley Community Centre and the finish […]

Selsdon Half Marathon @ LDS Church, South Croydon, Surrey, United Kingdom on 21 March 2015

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Lovely friendly event through the leafy South Croydon and Selsdon area. Very well marshalled with good parking and facilities. All finishers receive, medal, goody bag and t-shirt. Trophies to the fastest man and woman.

Needles XC Half Marathon @ West Wight Sports Centre, Freshwater, Isle of Wight, United Kingdom on 07 June 2015

This great event, in a fantastic location, is the only running event that features the iconic Isle of Wight Needles, a 19th century military battery, Tennyson’s Monument and of course the stunning landscape of the West Wight!

Stunning scenery. Great off-road route. Varied terrain. Good organisation and race facilities. Great Value. Nice medal. What more […]

Nuclear Oblivion Ultra Mudathon @ Kelvedon Hatch Secret Nuclear Bunker, Brentwood, Essex, United Kingdom on 16 May 2015

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Oblivion is a 26 mile/42km ultra mudathon designed to challenge the fastest and fittest of obstacle racers. Don’t underestimate its brutality as you will have 7.5 hours to complete the distance whilst tackling approximately 175 mixed obstacles. This event requires hardcore training as is the ultimate test of physical and mental endurance and strength. This […]

NUCLEAR RUSH @ Kelvedon Hatch Secret Nuclear Bunker, Brentwood, Essex, United Kingdom on 16 May 2014

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Nuclear delivers award winning ultra gritty, muddy, obstacle loaded 6km & 12km events. Courses are designed & built to challenge all abilities of fitness with a mix of natural & high quality man-made obtacles, over varied terrain. Woods, lakes, bogs, ditches, hills, clay pits, zip-lines, DeathSlide, Gorilla Bars, log carries will push to your limits […]

Basingstoke Half Marathon @ War Memorial Park, Basingstoke, Hampshire, United Kingdom on 04 October 2015

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A mainly rural and undulating route starting from Basingstoke town centre and going out of town on minor roads through countryside, returning to the main town park for the finish.