BattleFrog Obstacle Race Series Greater Atlanta II @ Buford, Georgia, United States on 12 November 2016

Coach Pain leading the way, HOOYAH!

The BattleFrog course is a total test for people of all fitness levels from ages 13 and up. The approximate 8K course will take you through 22+ military-inspired obstacles that will be sure to test your body, mind and spirit.

Volunteers and race officials are throughout the course to motivate you through the obstacles and […]

Trailtroopers Castle Dangerous OCR @ Douglas & Angus Estate, Douglas, South Lanarkshire, United Kingdom on 13 August 2016

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Obstacle Race with lots of natural and man made obstacles over a 12k for adults with a 3k family/kids option. end end

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

NUCLEAR FALLOUT

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 […]

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

NUCLEAR FALLOUT

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, […]

Rat Race Man vs Lakes @ Graythwaite Estate, Ulverton, Cumbria, United Kingdom on 09 July 2016

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Rat Race are proud to introduce Man vs Lakes: The most adventurous marathon-distance running journey in the UK. This is 26.2 miles like nothing you have experienced. Begin with an audacious and surreal crossing of the quicksand of Morecambe Bay before tackling a rollercoaster running route through the Lake District’s Mountains. Then prepare to face […]

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

The Deathslide

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

NUCLEAR BLAST

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

The Deathslide at The Nuclear Races

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

Nuclear Oblivion

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

Nuclear Blackout Night OCR

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 OCR FOR KIDS

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 & […]

Your First Mud Run @ Holyoke Community College, Holyoke, MA, United States on 18 September 2016

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Your First Mud Run is the ONLY mud run in the country designed so both parents and kids can run together!

Our courses are 1.5 – 2 miles and includes 10 – 16 obstacles that are designed for adults and kids. If you ever thought about doing a mud run, ours is the perfect ‘first […]

The Muddy Mucker© @ Chiswell Green Lane, St Albans, Hertfordshire, United Kingdom on 10 April 2016

The Muddy Mucker©

The Muddy Mucker© returns at the brand new location of Chiswell Green, St Albans!

Join us at 10am on Sunday 10 April 2016 and test your endurance in a 5 mile obstacle challenge. The event is open to anyone over the age of 16 (under 18s must have parental consent to take part).

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St Lukes Santa MUD Run – Nuclear Races @ Secret Nuclear Bunker, Kelvedon Hatch, Brentwood, United Kingdom on 14 November 2015

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St Lukes Hospice have partnered up with Nuclear Races to bring you the craziest twist of Christmas and mud since they added vanilla to coke!

6km course distance over ultra-gritty, properly muddy, obstacle-loaded farmland set in the heart of the Secret Bunker Estate.

Nuclear Races are well known for delivering award winning events with big, […]

Color Sunday Adventure Challenge @ Powderhorn Mountain Resort, Mesa, CO, United States on 27 September 2015

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Please join us on Color Sunday Sunday, September 27th, at Powderhorn Mountain Resort to participate in the 10K Thigunawat trail run race and/or the 3K Team Adventure Run.

The 10K Thigunawat individual trail run race will be run on a similar spectacular course as 2009, 2010, 2012 and 2013 (9:30 am) (unlike the rain-shortened course […]

One True Grit Obstacle Race @ High Elms Lane, Benington, Hertfordshire, United Kingdom on 29 March 2015

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5 AND 10K Obstacle challenges featuring 30+ natural and man made military inspired obstacles that will test you to the max.

Prime Four Beast Race – Banchory @ Knockburn Sports Loch, Banchory, Aberdeenshire, United Kingdom on 26 September 2015

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BEAST yourself on an epic 10k obstacle race over rough terrain, dirt tracks and forest; take on 20 mega obstacles on the way; run solo or in a team; win brilliant prizes; do it for charity; eat and drink top-quality local produce; be in ridiculous fancy dress … Do any of this and more at […]

NUCLEAR BLACKOUT @ Kelvedon Hatch Secret Nuclear Bunker, Brentwood, Essex, United Kingdom on 19 September 2015

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Blackout is a 5km multi-lap obstacle loaded night race. It will launch you out of your comfort zone, llead you into unknown territories, testing all of your senses to the maximum as you negotiate endless & overwhelming obstacles by the light of a headtorch. This course is designed to challenge the fears of claustrophobia, darkness […]

NUCLEAR BLAST @ Kelvedon Hatch Secret Nuclear Bunker, Brentwood, Essex, United Kingdom on 19 September 2015

HarryBlackoutSept-11

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 with over 30 obstacles designed to test strength, power, speed, endurance, agility, stamina & balance. Race […]

NUCLEAR FALLOUT @ Kelvedon Hatch Secret Nuclear Bunker, Brentwood, Essex, United Kingdom on 14 November 2015

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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 are muddier […]

St. Paddy’s Engineer Challenge @ Camp Lejeune, Jacksonville, NC, United States on 14 March 2015

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The St. Paddy’s Engineer Challenge is a grueling off-road race that incorporates Marine-specific physical and mental tests and skills. The course was designed by Marines, for Marines. As its name implies, it is a race that will test your strength and determination! The course will include a variety of obstacles and mud pits that will […]

MARSOC Mud, Sweat & Tears @ Stone Bay, Camp Lejeune, Jacksonville, NC, United States on 25 April 2015

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Mud, Sweat & Tears is exactly what you will get when you run this 5-mile mud run. The Marines from Marine Special Operations Command (MARSOC) pride themselves on physical superiority and mental toughness. See if you can hang with them! The MARSOC Mud, Sweat & Tears off-road course includes forest terrain, dirt paths, winding trails, […]

X-treme Endurance 10K @ Camp Devil Dog, Jacksonville, NC, United States on 07 February 2015

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Held in the heart of Marine training zone Camp Devil Dog, the X-treme Endurance Challenge is a scenic, off-road 10K course that will test the strength, stamina, and endurance of al participants! The course includes a variety of obstacles, mud crawls, and challenging features, both natural and man-made.

The X-treme Endurance is the first race […]

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 […]

Reaper Events October 2014 @ Heart of England Conference and Events Centre, Meriden Rd, Fillongley, Coventry, West Midlands, United Kingdom on 18 October 2014

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Not for the faint hearted, Reaper Events offers mud-runners both day and night 10k challenges which have it all – plenty of mud, icy water, hard to reach obstacles, slides and jumps. Basically you name it, Reaper has the lot. Every run is different, never designed or built in the same way. The challenge just […]