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The Nuts Challenge is a relentless military themed obstacle course challenge. Chose to run either 7k, 14k, 21k or 28k and in each lap tackle over 100 obstacles! Voted ‘Toughest Obstacle Course’ twice and ‘Best Value for Money 2015’. Are you Nuts enough? end end
SURVIVAL RUN™ NICARAGUA is an 80km+ Ultra Distance Survival Race on the volcanic jungles of Isla de Ometepe in Nicaragua. The objective of this race is to strip you of all comforts and to put you in true survival mode. The obstacles/challenges are natural and based on the daily survival of the traditional local culture […]
After our hugely successful fun run in 2015 Moddershall Mucky Ducks is back for 2016!! Our friendly but fiesty 5k is made of obstacles, hills, water & mud. All ages & abilities can run, jog or walk through the entire challenge!
Run, duck, dive & splash through the Staffordshire countryside in your very own Moddershall […]
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 […]
Nuts is a 7-28k assault course UK adventure race in surrey near London. Our next mud run is on 3rd/ 4th September 2016, places fill up fast with limited availability.
You can run for charity or just for fun, the assault course is also available all year round and we run special obstacle race training […]
Battlefrog is a fun and family friendly OCR that challenges your physical and mental endurance! Open to athletes of all levels! There are many different time starts throughout the day. Come join us for this awesome event! distances include 400 meter 1mile kids race. 1 mile, 8K, 16K adults. end end
The BattleFrog Obstacle Race Series is one of the nation’s fastest growing outdoor fitness events. Expertly designed by Navy SEALs and SeaBees, BattleFrog is heralded as one of the top OCR companies by industry publications.
BattleFrog features an exciting American-themed race festival with music, food, entertainment, fitness vendors and plenty of viewing areas to catch […]
24 Hour Fitness has teamed up with Denver Broncos to create the ultimate day of good vibes and great beats. Presenting the Denver Broncos Stadium Challenge featuring a Music 5K Run, 24 Life Obstacle Course and Music Festival. Join us in Broncos Country, come Run, Tackle, Party and #RockWith24. end end
Obstacle Race with lots of natural and man made obstacles over a 12k for adults with a 3k family/kids option. end end
2016’s toughest race! This is Pain & Suffering, one of the hardest obstacle races Great Britain has to offer. We have taken inspiration from fell running, cross country and obstacle racing to create the ultimate race challenge.
Set in the harsh terrain of the grounds of Rockingham Castle this 10 mile plus obstacle race is […]
The Suffering Obstacle Race is waiting, are you ready?
Set in the rough and rugged Great Park of Rockingham Castle this 10k obstacle race is a challenge even for the most experienced OCR runner. It has been meticulously crafted by The Head Reapers to challenge you at every twist and turn and includes over 25 […]
It’s our entry-level race but… Set in the idyllic grounds of Rockingham Castle this race has been crafted to challenge all that take part and includes over 15 awesome obstacles.
If you’re after mud, water and loads of fun this is the race for you. Running in teams or solo, the sense of camaraderie on […]
BEAST yourself on an epic 10k obstacle race over rough terrain, dirt tracks and forest; take on mega obstacles; run solo or in a team; win brilliant prizes; do it for charity; be in ridiculous fancy dress … Do any of this and more at Scotland’s ‘beastliest’ obstacle race.
It all starts on the banks […]
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 […]
Get ready to swim, wade, crawl, climb, jump, splash and run your way around our aquatic obstacle course. Brought to you by Rat Race, this is your chance to join 1,000s of #RatRacers at London’s ExCel centre for this wet ‘n’ wild 10km running course around Docklands, linking together many special water and shore based […]
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 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 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 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; […]
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 […]
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 […]
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 & […]
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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It’s our entry-level race but… Set in the idyllic grounds of Rockingham Castle this race has been crafted to challenge all that take part and includes over 15 awesome obstacles.
If you’re after mud, water and loads of fun this is the race for you. Running in teams or solo, the sense of camaraderie on […]
A Spartan is not your average race! While you are certainly familiar with everyday run-of-the-mill road races, the Spartan Race is like their adventurous, adrenaline-junkie friend who thrives on excitement. Not only will you be running, climbing, and crawling across some of the most gorgeous terrain the world has to offer, but you’ll also get […]
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Interactive Map… Races in your Area
Latest Races Listed…
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Valentines Live, Love, Run 5K/10K/13.1 @ Eleanor Tinsley Park, Houston, Texas, United States on 14 February 2026
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MLK Freedom Run 5K/10K/13.1 @ North East Metro Park, Pflugerville, Texas, United States on 17 January 2026
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Sinister 7 Ultra @ Crowsnest Pass, AB, Canada on 11 July 2026
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Shamrock Beer Run & BrewFest @ Golf Rd & Ring Rd, Rolling Meadows, Illinois, United States on 14 March 2026
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Formosa Spiked Apple 5k @ 3011 Formosa Gardens Blvd, Kissimmee, Florida, United States on 15 March 2026
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Carlyle Lake Triathlon @ Carlyle Lake, Carlyle Township, Illinois, United States on 20 September 2026
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Rodeo Stampede @ 2101 Mustang Dr, Marble Falls, Texas, United States on 28 March 2026
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Resolution Run 6K @ 4200 Vollmer Road, Olympia Fields, Illinois, United States on 01 January 2026
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