List of all Active Race Series & Organizers of Mud Runs, Obstacle Races, and Adventure Runs

Click on any race series name to see full details about that race and find all upcoming races.

100 Acre Challenge
1000 Strong
4×4 Nuts
5K For Heroes
5K The Hard Way
ABC Challenge
Abominable Course
Abominable Snow Race
Abominable Winter Obstacle Adventure
Acre Breaker
Active Warrior
Adare to Survive
Adohi Challenge
AGOGE Obstacle Course Race
AHS Eagle Dash
Airfield Anarchy
Alabama Mountain Mudder
Alpha Warrior
Alpine Adventure Challenge
American Hero Challenge
American Hotshots Extreme Run
American Ninja Warrior
Apex Extreme Run
Arctic Dash
Arctic Warrior Race
Are You Brave Enough
Arena Run
Arkalon Assault
Armageddon Ambush
Armed Services YMCA Mud Run
Army Lake Camp Mud Run
Army Mud Assault
ASC Obstacle Dash
ASCOs Spartacus Dash
Autumn Acres
Auvergnate Extreme
Avalanche Run
Back 2 The Trenches
Back O Bourke Mud Run
Badass Dash
Badass Mucker
BAE Mini Mudder
Banna Beast Challenge
Bantam Jeep
Barbarian Challenge
Barber Beast on the Bay
Battle at The Brazos
Battle of Lansdown
Battle Of The Badges Mudrun
Battle of the Knights
Battle on Buffett Beach
Battle Races
Battlefield Challenge
Battlefield Fitness
Battlemud Laurens County
Beach Ballistic
Bear Crawl
Bear Grylls Survival Race
Beast OCR Challenge PR
Beast of the East Fork
Beasts OCR
Behind Enemy Lines
Beloit Dirty Dash
Benjamin Dash
Bermuda Triple Challenge
Berzerker OCR
Bethesda Mud Run
BG Gauntlet Mud Run
Big Daddys Zombie Run Crawl
Big Dawg Dare
Big Dirty Run
Big Dog Brag
Big Head Endian 5K
Big House Breakout
Big House Legionnaire Mud Challenge
Big Muddy Challenge
Big Nasty Mud Run
Big Red Challenge
Bigfoot Challenge
Billabong Ranch Brumby Run
Bing Blazer
Birch Hall Adventures
Bison Race
Black Diamond Obstacle
Black Swamp Runner
BlitzFitMe Extreme Fitness Challenge
Blizzard Blast
Blizzard Run
Blood and Guts
Blood and Sweat Challenge
Blue Ridge Mountain Mudurance
Bluff Mudder
Bog Commander
Bold r Dash
BoneFrog Challenge
Boot Camp 5K Race Challenge
Bootcamp Challenge
Bootneck Events
Born Survivor
Bounce And Not Break
BPA Mud Run
Brantford Police Auxiliary Mud Heroes
Braveheart Race
Bravus Race
Brazos Valley Warrior
Breakout Run
Brewser Adventure Race
Brian R Bill Memorial Challenge
Bridging Abilities Obstacle Challenge
Brutal 10
BSR Cable Park Run
Buffalo Battle
Buffalo Zombie Mud Run
Burnt Corn Creek Run
Bush Farm OCR
Cacique Jumacao
Cairo Runners
Caldecotte Xtreme Challenge
Call of Valhalla
Camel Crawl
Camp Fuji Mud Run
Camp Winona Mud Fest
Case Creek Obstacle Mud Run
Catfish Crawl
CBD Stampede
Celtic Warrior Challenge
Chain Runner
Challenge Smeekley
Challenged Champions
Chamblee Family Fun Mudder
Champion Dash
Chase Race
Cheadle Challenge Adventure Run
Chepstow Bounce 4 Charity
Chepstow Stampede
Cherokee Challenge
Childrenz Challenge
China Peak Mud Run
Chino Mudder
Choung Race
Chuong Race
City Challenge Obstacle Race
Civil Ties
Color Obstacle Rush
Commander Run
Commando Series
Concrete Rush
Connie Maxwell Mud Run
Conquer the Gauntlet
Conquer the King
Cornish Cider Run
Cornish Santa Run
Country Mile 5K
Countryman Challenge
Courage Challenge
Course Extreme
Cowboy 5K
Croghan Hill Challenge
Cross Country Stampede
Crossfit Huntsville
Crucible Obstacle Course Race
Crusher Race
Da Dells Dirtiest Dash
Daniel Barden Highland Mudfest
Dash or Crash
Dead End Race
Defenders of Liberty Mud Run
Del Mar Mud Run
Delaware Mud Run
Delmarva Dirt Dash
Delta Dash
Desafio Braves
Desafio de Guerrero
Desert Veterans of Wisconsin
Desert Warrior Challenge
Desert Warrior Challenge AZ
Devil Mud Run
Devils Circuit
Devils Dash
Dhillbillies Mud Run
Diamond Hollow Mud Run
Dirt Runner
Dirt Wars Survivor
Dirty Beach Mud Run
Dirty Bird Mud Run
Dirty Bird Run
Dirty Dan Dash
Dirty Devil Stampede
Dirty Dog Dash
Dirty Donkey Mud Run
Dirty Dozen
Dirty Girl Mud Run
Dirty Hero
Dirty Leprechaun
Doomsday Dash
Dorians Challenge
Down and Dirty Obstacle Course
Down and Dirty Obstacle Race
Down N Dirty Mud Run
Dragon OCR
Dropzone Gunner
Durham Muddy Mayhem
Eat Dirt Mud Run
Edge Muck Run
Edge the Ledge
Emerald Coast MudRun
End Hunger
Endure For The Cure
Energy Adventure Challenge
Energy Fitness
Enfer Vert
Epic Mud Maze
EPIC Series
Explore the Mud
Extreme Events
Extreme Warrior Mud Run
Eyman Mud Run
Family Farm Obstacle Series
Farinato Race
Farm Crawl 5K
Farm Mud Run
Farm Run
Farmageddon Run
Filthy Fun Mud Run
Fin Fun Mud Run
Finger Lakes Mud Run
Finn McCool
Firemans Mud Run
Fishermans Friend StrongmanRun
FIT Challenge
Fit Families Mud Run
FIT Panther Challenge
Fitness 4 Focus
Five O Fitness
ForeShore Adventure Run
Forest Fitness Mudmayhem
Forest Warrior
Fort Tough
Four Seasons Mud Run
Franklin Lions Tuff Run
Freak N Farmer
Fredericktown JROTC Mud Run
Frontline OCR
Fun In The Sun
Gaelforce Events
Gallatin Recon Run
Gardens and Ghouls
Gauntlet Races
Gauntlet Trail Run
Gaylord Gauntlet
Gelt Gladiator
Get Mucked
Getting Tough Race
Gimme Smore Mud Run
GitEr Done Mud Run
Glack Attack
Gladiator Assault Challenge
Gladiator Dash
Gladiator Races
Gladiator Rock n Run
Gladiator Run
Glencoe Great Mud Run
Goliath at the Gorge
Goliath Challenge
Goliath Gauntlet
Gonka Gladiatorov
Good Clean Fun Mud Run
Goodwill Mud Run
Goppin Challenge
GoPro Mountain Games
Grail Quest
Grapes of Wrath
Great American Hero
Great Auburn Obstacle Race
Great Muddy Endurance Races
Great Pumpkin Haul
Greece Gauntlet
Green Beret Challenge
Green Mountain Iron Dog
GreenZone Heroes
Gretna Gritty
Grit Events
Grit N Wit
Grit OCR
Gritty Chix Mud Run
Gritty Goddess
Grizzly Football Mud Run
Gropen Extreme
GSM Gruelling Games
Guardians Gauntlet
Gung Ho
Gut Check Fitness
Habitat Mud Run
Hang On Run
Hannibal Race
Hard as Nails
Hard as Oak
Hardcore Mudd Run
Hardship Hill
Heart Challenge
Heavy HIITers
Hell and Back
Hell in the Harbour
Hero Mud Run
Heroes Obstacle Race
High Country Goliath
High Desert Mud Run
High Rock Challenge
Highbridge Hills
Highlander Assault
Hillbilly Hike
Hillbilly Mud Run
Hillybilly Havoc
Hogwaller Mud Run
Holiday Valley Mudslide
Hollard JURA
Hollis Adams Mud Run
Holy Grit
Honfleur Challenge
Hoof Stomp Mud Run
Hot an Dirty Mud Run
Hottest Habanero Hustle
Huff And Puff Racing
Hullabaloo Family
Humans V Zombies Adventure Race
Hunter Games
Hunterdon County YMCA
I AM Strong
Iceman Run
Ignite Fitness
IMPI Challenge Obstacle Trail Run
In Tents Mud Run
Independence Pioneer Mud Run
Independent Ninja Warrior Events
Indian Mud Run
Inferno Run
Insane Terrain Running
Iron Runner
Irvine Lake
ISU Ambush
Italian Mud Run Experience
Jacksonville Mud Obstacle Challenge
Jacksplace Gauntlet Games
Jail Break Challenge
Jail Break Mud Challenge
Jailbreak Brevard
JCB Mud Run
Joint Base Lewis-McChord
Jonestown KOA Heros Challenge
Judgement Day
Jump Climb Extreme
Jump Duck Run
Just For The Mud of It
K9 Gladiators
Kalamazoo Mud Run
Kansas City Dirty Duo
Kapow Superhero Challenge
KC Timber Challenge
Kendallville Warrior Run
Kentucky Mudfest
Kernow Killer
Kickass Endurance
Kickass Obstacle Race
Kids Adventure Games
Kids Obstacle Challenge
Killer Race
Killinkere MudVenture
Knight Race
Knoxville Marine Mud Run
KONQER Obstacle Race
Krell Adventure Games
Kryptonite Challenge
La Batalla Race
La Conquete
Lanrick Challenge
Le defi forestier
Left Right Repeat
Legend Race
Legion Run
Lewy Goodes Scouting For Fitness
LHK Canine Mud Run
Like A Boss Mud Run
Lil Mud Runner
Lions Chase
Little Rocks Dirtiest 5K
Lloydminster Muck Run
Loch Mountain Challenge
Loon Mountain
Lords Gym Mud Run
Lost Tribe Expeditions
Luray MUDtoberfest
Macon Mud Run
Mad Anthony Mud Run
Mad Cow Mud Run
Mad Max Mud Run
Mad Mountain Mud Run
Mad Mudder Mud Run
Mad Warrior
Madtown Mudrun
Magnuson Series
Makahiki Challenge
Man Challenge Denver
Man Meets Mud
Man VS Mountain
Mango Hill Mud Run
March Madness Mud Run
March Madness Nicaragua
Maricopa Mud Run
Marine Corps Marathon
Marine Corps Mud Run
Marine Mud Challenge
Marine Mud Run
Marion Made Challenge
Marylands Finest Fitness Challenge
Maunga Mayhem
Mayo Mud Run
McClean Fire Department
MCCS Lejeune New River
MCCS Okinawa
McMurtry Mudder
Medieval Rush
Mega Bounce Run
Memorial Beach Challenge
Mercenary Wars
Mestival Hesleyside
Met Con Blue
Metro Parks Tacoma Mud Run
Michigan Adventure Race
Michigan Man vs Mountain
Mighty Deerstalker
Mighty Mud Dash
Mighty Titan Adventures
Milles Flocons
Mini Muckers
Miserable Miles
Miss Muddy
Mission Run
Mississippi Mud Run
MIT Tough Team
Mogollon Monster Mudder
Monaca Fire Department
Monster Challenges
Monster Dash
Monster Dash SC
Montevallo Warrior Challenge
Moore County Zombie Run
Morgans Mud Gauntlet
Mountain Grind
Mountain Mud Sling
Mountain Mudder
Mountain Tuff Mudd Run
MountainQuest OCR
MSMS Bull Rush
Muck It
Muck MS
MuckFest MS
MuckRuckus MS
Mucky Races
Mud and Chocolate
Mud and Guts Challenge
Mud and Muck Aid for Africa
Mud and Mucker Challenge
Mud and Sweat Mud Run
Mud And War Run
Mud Challenger
Mud Dog Run
Mud Endeavor
Mud Factor
Mud Fusion
Mud Gauntlet
Mud Happens
Mud Hero
Mud Masters
Mud Mayhem
Mud Monster Mud Rush
Mud Monsters Run
Mud Mulisha
Mud Muster
Mud n Madness
Mud Ninja
Mud O Ween
Mud on the Mountain
Mud Pack Challenge
Mud Run Mayhem
Mud Run on the Farm
Mud Rush
Mud Stash
Mud Strong
Mud Sweat and Boobs
Mud Sweat and Fear
Mud Titan
Mud With Landon
MudCross Challenge
Mudd Monsters
Mudd, Sweat and Tears
Mudders Day Madness
Muddy ACCE Race
Muddy Addiction
Muddy Angel Run
Muddy Bloody Run
Muddy Bottom Crazy Mud Run
Muddy Buffalo
Muddy Bull Run
Muddy Dog Challenge
Muddy Duck Dash
Muddy Furlong
Muddy Grape
Muddy Hell
Muddy Leprechaun
Muddy Mammoth
Muddy Maniacs
Muddy Mayhem
Muddy Miler Family Adventure
Muddy Trail Run
Muddy Trials Original
Muddy Turkey
Muddy Vike
Muddy Warrior
Muddy Warrior Run
Muddy Warriors Xperience
MuddyUp 5k Race
Mudman Race
MudRun Fun
MudStock Race
MudZilla Mud Run
MudZilla Run
Mukwonago YMCA Family Mud Run
Musacchio Mud Mountain Challenge
Muscle Acre
Muscle Up Obstacle Run
Mustang Mudder
My Muddy Valentine
Naki Run Amuck
Nash Ranch Mud Mash
National Ninja League
NBVC Mud Run
NCC Mud Run
Nebraska Mud Run
Neptunus Run
Newcastle Stampede
Newquay Mudathon
Niagara Mudfest
Night Attack
Nightmare Challenge
Ninth Region
No Bull OCR Challenge
No Ego Challenge
No Mans Land Trench Run
Nordic Race
North American OCR Championships
Northwoods Bad Dash
NTB Mud Run
Nuclear Races
O Course
O2X Summit Challenges
Oak Runner Trail Run
Obstacle Advantage Race
Obstacle Course Extravaganza
Obstacle Elite
Obstacle World
Obstacles With A Purpose
OCC Obstacle Challenge Course
OCR European Championships
OCR World Championships
October Mudfest
Ohana Mudder
Oklahoma Run the Ranch
Oklahoma Zombie Run
Old Ironsides Mud Challenge
Oldham Down and Dirty
Oles Assault
One King Mud Run
One True Grit
Only the Brave
Ooh Rah Dash
Operation Tall Timber
Operation Warzone
Operation XLR8
Oregon Running Dirty
Original Gram
Orphan Love Mud Run
Orphan Mud Run
Outbreak 5K
Overcomer Obstacle Challenge
Panic In The Dark
Panther Run
Parkinsons UK Muddy Mission
Patriot Highlander Challenge
Patriot Run
Paul Bunyan Extreme 5K
Pawpaw Gauntlet Run
Payne Games
Pelham Mudfest Challenge
Pensacola Mud Run
Pig Trail Mud Run
Pike Firemans Challenge
Pirate Plunge Mud Run
Pirate Zombie Mud Run
Play Dirty Adventure Run
Polar Hero Winter Obstacle Race
Polar Rush
Polson Mud Run
Pompano Beach Fitness Race
Portage the Prairies
Primal Games
Prime Four Beast Race
Prison Break Race
PSU Gorilla Dash
Puerto Rico Survivor Race
Pukka Races
Pumpkin Patch Mud Run
Push It for the Peace
Race Day at Augustine School
Race For a Reason
Race for Grace Obstacle Challenge
Race For Kids
Race for Life Pretty Muddy
Race MT
Race Nation
Race Roll Dye
Race the Tide
Radical Run
Ragged Mountain Scuttle
Raider Rampage
Raiders Of The Lost Park
Raleigh Zombie Escape
Ram Run
Rampage at the Ridge
Rat Race
Rathcormac Mud Challenge
Raw Challenge
RC Mudders
Rea Palus Race
Reach The Peak NH
Reaper Event
Recovery International
Red Dirt Mud Run
Red White and BOOM
Reign of Terror
Renegade Obstacle Race
Renegade Rage
Renegade Run
Republic Mud Run
Reverse the Cycle
Revival Run
Reviver Challenge
Ridiculous Obstacle Challenge
Rise Challenge Events
Rise Up Challenge
Robin Run
Robo Mud Run
ROC Argentina
Rock of Hell
Rocket Race
Rockfish Adventure Run
Rockin the Desert
Rodneys Off Road Challenge
Rogue Alpha Rush
Rood Rampage
Roots in the Mud
Rough Events
Rough Kidder
Rough Runner
Roughneck Mud Run
Royal Marines Commando Challenge
Royal Mud Man
Rubicon Race
Ruff Dugger
Ruff Mudder
Ruff Rampage
Ruffin Mudder
Rugged Maniac
Rugged Runner Challenge
Run Amuck
Run Down The Demons
Run For Our Lives
Run For The King
Run for your Freakn Life
Run It Like Its Hot
Run Lizard Creek
Run Mucker Run
Run of the Dead
Run Rampage
Run Steeplechase
Run the Gauntlet
Run the Hook
Run the Jailbreak
Run the Rails
Run The Ridge
Run the Rock
Run Wild Chile
Runamuck Challenge
Running Dead KC
Running Warriors
Running Wild Race
Russian River Mud Run
RV Devil Dash
Samurai Sprint Mud Run
Sand and Misery Challenge
Savage Dash
Savage Race
SBSD Mud Run
SCOUT Strong Mud Run
Seabee Volkslauf Mud Run
Seamark Mudder
September Scramble
Shadeys Rugged Run
Shale Hill Adventure
Shark Life OCR
Shasta Mud Run
Shropshire Mud Run
SISU Endurance
Skibbereen Down and Dirty Adventure Challenge
Slop Hop
Soar Above The Challenge
Soldier Dash
Soldier Rush
Sound View Camp Mud Run
South West Mudfest
Southern Classic Terrain Mud Run
Space Coast Mud Run
Sparta Events
Sparta Mud Run
Spartan Race
Special Operators Challenge
Sperunking Sandmine Challenge
Splat Jr Mud Run
Splat Quack GO
Sport Tasman Marlborough Muddy Buddy
Sports Hangout
Squaw Creek Army Challenge
St Giles Hospice Mud Challenge
St Lukes Hospice Mud Run
Stampede Adventure Run
Stars and Scars
Steeplechase Challenge
Step Up For Soldiers
Sterling House Down and Dirty
Stony Lonesome Mud Run
Stop Drop and Mud
Storm the Beach
Strong Viking
Stronger Women Stronger World
Suck It Up Buttercup
Suffolk Whole Hog
Summit Survivor
Summit To Swamp Mud Run
Sundown Mountain
Sunriver March Mudness
Super Hero for SAFE
Super Hero Obstacle Race
Super Human Challenge
Superhero Dash
Survival Beach
Survival of the Fittest
Survival Race
Survival Race
Survival Run
Survivor Mud Run
Survivor Race
Survivor Race UK
Swain Swamp Stomp
Swamp and Stomp Mud Run
Swamp Buggy Mud Blast
Swamp Challenge
Swamp Romp
Swamp Stomp 4 Mile
Swampfoot 4 Mile
Swan Creek Mud Run
Sweeney Mud Run
Tackle the Tar
Tactical Titan
Talahi Adventure Dash
Tame The Terrain
Tater Dash
TEAAM Mud Run for Autism
Teach First Wolf Run
Team Vs Terrain
Telegram & Gazette Woo Challenge
Terrain Racing
Terrier Tough
Texas Warrior Mudout
The 5K Foam Fest
The 5k Zombie Run
The Battlegrounds
The Beast Challenge
The Beast Run
The Blitz
The Color Run
The Dirty Dash
The Dirty Leprechaun
The Elements OCR
The Endurance Games
The Farmers Mile
The Freeze
The Gauntlet Games
The Gauntlet Race
The General
The Great Escape
The Grind
The Grizzly and Cub Run
The Holt Bolt
The Ice Cream Race
The Inferno
The Inflatable Run
The Liquid Run
The Little Welly Goes Wild
The Muck Of Kells
The Mud Day
The Mudnificent Seven
The Nuts Challenge
The Original Mud Run
The Parent Trap
The Rec Trek
The Ridge Run
The Rocket Gauntlet
The Rugged Run
The Swanbourne Endeavour
The Titan Run
The Twilight Run
The Urban Jungle
The Urban Trials
The Viking Challenge
The Wild Stampede
The X Run
The Zombie Dash
Thomas College Dirty Dog Mud Run
Thunder Run
Tiger Band Zombie Run
Tiger Escapade
Tippecanoe Trail and Mud Run
Tippy Mud Run
Titan Macquarie Mud Run
Titan MOB
Titans Challenge
Titans Race
TK Gator Grind
Tomahawk Tromp
Tonka Mud Run
Total Life Fitness Challenge
Total Warrior
Tough Cookie Adventure Race
Tough Cookie Mud Run
Tough Gator
Tough Guy
Tough Mudder
Tough Race
Tough Sht
Tough Viking
Tower Hill Challenge
TPK Endurance
Transylvania Adventure Games
Transylvania K9 Challenge
Trash Dash 5K
TRENCH Challenge
Tribal Challenge
Tribe Obstacles
True Grit
True North Tough
Tuff Enuff
Tuff Muck Challenge
Tuff Scramblers
TugMudder Adventure Run
Twisted Steel OCR
Tyndall AFB The Running Dead
Udder Mud Run
Udderly Muddy Rugged Run
Uff Da Mud Run
Ullevi Arena Challenge
Ultimate Ninja Athlete Association
Ultimate OCR
Ultimate Towner
Ultm8 Warrior
Umpqua Community College
Urban Attack
Urban Ninja
US Canine Biathlon
USMC Ultimate Challenge Mud Run
Uventure Run
Valhalla Challenge
Vampire 5K
Van City OCR
Vanguard Race
Vengeance Run
Viking Gauntlet
Viking Obstacle Race
Viking Race
Vino and the Beasts
Viper Challenge
W Hicks Obstacle Course Run
Wabash Valley Prison Break
Wairua Warrior
Walter N Levy Challenge
Wapsi Warrior Challenge
War Horse Warrior Challenge
Warrior Adrenaline Race
Warrior Assault
Warrior Creek 5k
Warrior Dash
Warrior Mud Challenge
Warrior Princess Mud Run
Warrior Race
Warrior Run
Warrior Wolf
Warriors Challenge
Wason Pond Pounder
Waves Mud and Mountains
West Mountain Countryman Challenge
Whine on the Vine
Whitko Extreme Challenge
Wichita Gladiator Dash
Wicked Slush
Wild Boar Challenge
Wild West Mud Fest
WILDR Rough Runner
Williamstown Fire Department
Wilson Swamp Stomp
Winter Run or Obstalce Course
Wolf Run
WOO WHO Urbanobstacle
Woodland Mud Run
Woodland Zombie Run
WYLD Mud Run
X Warrior Challenge
XLETIX Challenge
Xtreme Challenge Run
Xtreme Obstacles
Xtreme Warrior Challenge
Yakima Valley
YMCA Adventure Warrior
YMCA Marquette
YMCA Mud Run 4 Kids
YMCA Rat Race
Yorkshire Family Zombie Run
Yorkshire Warrior
Your First Mud Run
YVCHR Tuff Enuf
Z Mud Run
Zedtown Zombie Invasion
Zeus Races
Zombie Blood Run
Zombie Charge
Zombie Escape
Zombie Evacuation Race
Zombie Fun Run
Zombie Inflatable Obstacle Survival Run
Zombie Mud Run
Zombie Mud Run Canada
Zombie Run
Zombie Run Belgium
Zombie Run Running Scared
Zombie Survival Experience
Zombie Survival Run
Zombie Survivor
Zulu Challenge

List of all InActive Race Series & Organizers of Mud Runs, Obstacle Races, and Adventure Runs

It appears these events are no longer being held, if you have any questions, please contact the event directly.
Click on any race series name to see full details about that race and their contact information

4 Seasons Challenge
4H Mud Run
5K Adventure Run
5K Adventure Series
5K Foam Fest
5K Fun Mudder
5KRunDead Zombie Run
6K Military Run
7 Summits Adventure Race
9RUN1 Challenge
A Lil Crazy Run
ABF Mud Run
ACMHS Race for Recovery
Adrenalin Rush
Adrenaline Run
Adrenaline Rush
AFS Obstacle Challenge
Aftermath Survival Challenge
All Out Races
Almighty Mud Run
Alpha OCR Series
Alvin Stampede Mud Run
American Gladiator Series
American Mud Race
Amesbury Sports Park
Anderock Challenge
Andy Alligators Swamp Stomp
Anthony Rotary Mud Run
Apple Dash
Arizona SwimRun
Artopios Mission Run
Ash Kicker
Atlas Race
Atlas Run
Audubon Mud Run
Autumn Daze Craze
AZ Mudathon
Back Country Mud Run
Backwoods Beast
Bad Ass America
Baddest Mud Run
Barn Yard Trot
Battle Challenge
Battle of Baton Rouge
Battle of Maestricht
Battle of the Brave
Battle Run Obstacle Race
Battle the Beach
BattleFrog Series
Be Brave 24
Beach Bash Obstacle Challenge
Beach Beast
Beach Derby
Beach Warrior
Beast Mode Challenge
Beast of the East
Beat the Gauntlet
Berserker Challenge
Berserker Race League Tournament
Berserkr Games
Beware of the Beast
Big Earls Extreme Race
Big Muddy Run
Bill Bottinos Mud Run for Cancer
Binder Lake Army Challenge
Black Bear Adventure Race
Black Hills Mud Run
Blackheart Challenge
Blenheim Zombie Run
Blue Skies Adventure Race
Boonie Gut Check
Boot Scootin Boogie
Boots on Ground
Bottega Fitness
Boulder Mud Race
BozeMonster Challenge
Brains and Brawn Run
Brave Heart Warrior Challenge
Brave Soldier Challenge
Briarcliff BC Stampede
Broncos Stadium Challenge
Buccaneer Rampage
Building Bridges Mud Run
Bulldog Mudrun Challenge
Burden Dayz Challenge
Bushido Challenge
ByronFest Fitness Challenge
Cahoots Duo Challenge
Calebs Mountain Mud Run
Call of the Beast
Call of the Warrior
Cambridge Christmas Pudding Race
Camel Crawl Mud Run
Camp LePrat Mud Run
Camp Titan
Campathlon Racer
Cannonball Rush
Capitol Apocalypse 5k Zombie Run
Capitol City River Dash
Carbon County Fair
Cashiers Trail Mix
Caustic Adrenaline Challenge
Caveman Crawl
Cedarville Jersey Mud Run
Centurion Mud Challenge
Chaffee Challenge Mud Run
Channels Challenge
Charlotte County BCC
Chasing Squirrels
Chattanooga Mud Run
ChickFilA Family Mud Run
Cincy Nation Mud Run
Civilian Military Combine
Clackamas Cougar Run
Clarke County Iron Track Challenge
Clash Of The Warriors PR
CLC Mud Run
Clinton Classic
Collins Home Mud Run
Color Games
Colorado Green Beret Challenge
Commando Challenge
Conquer the Fort
Conquest Mud Run
Coon Rapids Dirty Bird
Cooper Challenge
Copper Medallion Oktoberfest Race
Core Fitness Dirty Dash
Corn Fed Crucible
Corpse Crawl
Cowboy Mud Run
Cowboy Mud Run Georgia
Coyote Games Outdoor Challenge
Creek Crawl
Critical Mud
Cross Country Chaos
CrosSport Warrior Challenge
Culpeppers Rebellion
Custers Challenge
Dash of the Titan
Dash of the Titans
Day of Crisis
Dead 4 Life
Dead White and Chew
Defiance Extreme Trail Run
Delivery Land
Demon Run
Devil Dash
Diamond Hill Challenge
Diamond Surf n Turf
Dirty 30
Dirty 30 Family Mud Run
Dirty and Proud
Dirty Cause Challenge
Dirty Creek Mud Run
Dirty Dog Mud Run
Dirty Doyle
Dirty Foot Mud Run
Dirty Paws
Dirty South Mud Run
DirtyBird Mud Run
Disaster Run
Distress The Dress
Diva Dash
Dog Waller
Doors Dirty 5K
Down and Dirty Stampede
Dubai Gladiators Challenge
Eagles Nest
Easter Mud Hunt
Eau Claire Mud Jam
Eggcellent Obstacle Race
Eglin Air Force Base
Eirias Extreme
Elbert Mud Run
Endurer Dash
Enforcer Challenge
Epic Fail Challenge
Epic Grind
Epic Mud Run
Escape Obstacle Run
Escape Races
Escape the Chase
Escape The Nightmares
Escape The Walkers
Escape the Yak
Extreme Cold Run
Extreme Field Day
Extreme Mountain Mud Race
Extreme Mud Run
Extreme Nation
Extreme Rampage
Extreme Swamp Romp
Eye Mud Run
Eyrecourt Mud Run
Face Your Fears
Fallen Warrior Challenge
Families On Challenge
Family Promise Mountain Mud Run
Farm Fit
Farm Fun Mud Run
Fear the Pier
Fernbrook Farms Farm Run
Filthy Five K
Filthy Fun Run
Filthy Girl
Filthy Soles
Fire Run
Firebreather Challenge
Firetower Run-A-Muck
Fitathlon Challenge
FLX Events
Flying Dirty Mud Run
Force of Nature
Forge Through Hell
Fort Wayne Zombie Mud Run
Freefall X-Race
Fugitive Run
Fury at the Fairgrounds
Garibaldi Mud Run
Gasconade Gauntlet
Gator Tuf Mud Run
GC Gauntlet Obstacle
Gem City Gauntlet
Get Newked
Gettin Muddy For Kids
GI Dash Undead
Gladiator Girl Run
Gladiator Training Grounds
Go Ballistic
GoGirl Mud Run
GoHard Obstacle Run
Goliath Mud Challenge
Goose Poop Challenge
Got Mud
GR8 Escape Mud Run
Grand Rapids Mud Run
Grave Digger Race
Great American Mud Run
Great Pumpkin Dash
Grinder Obstacle Course Challenge
Grit Fit
Ground Zero Survival Run
Grumpy Muddah
Gut Check Challenge
Guts and Glory Quarry Challenge
Halloween Park
Hard Charge
Hardcore Caribbean
Hartselle Zombie Chase
Haymaker 5000
Hell Run
Hells Hollow Mudd Run
Hells Run
Hero Challenge
Hero Mud Challenge
Hero Races
Hero Rush
Heroes and Villains Adventure Run
Heroes Battlefield
Heroes Challenge
Heroes for Hope
Heroes Mud Run WA
Heroes vs Villains Flag Gauntlet
Hidden Creek Park Mud Run
Hidden Warrior
Highland Lakes Camp
Highland Mud Run
Hillbilly 5K
Hit and Run 5K
HMB Pumpkin Run
Hodges Family Farm Run
Holy Moly Mud Run
HookaMuck Challenge
Horahora Hard Core Mud Run
Horton Lake Outbreak
Humboldt County Mudrun
Hunted OCR
Hurricane Mud Flud Run
Ice Warrior Challenge
Ikaika Nui Extreme Obstacle Challenge
In Your Face 5K
Indee Zombie Run
indoc Elite Warrior Challenge
Insanity Run
Into the Mud Challenge
Ioala Zombie 5K Run
Iowa Games Mud Run
Ireland Run For Your Lives
Iron Knight
Iron Warrior Dash
Iron Will Warrior Challenge
Its a Knockout
Jack Axe Games
Jurassic Classic Mud Run
Kern Dash
Kids Sloppy Sprint
King Muck
Kiss Me Dirty
Knights Quest Medieval Mud Run
Kodex Race
KY Foam Run
KY Zombie Mud Run
Lago Mad Dash
Lake Eerie Zombie Mud Run
Lake Fear
Lake Villa Chamber Mud Run
Land Runners
Le Defi des Coursoeufs
Legends BattleCry
Leyton Warrior Challenge
Live Well Magnolia
LiveFitCt Mud Run
Long Island Adventure
Lords of the Mud
Louisiana Mud Dash
Love Mud Run
Mach One Mud Run
Mad Dash
Mad Mud Run
Magic City Mudder
Major Series
Man Down Event
Man Games
Mankato Mud Run
Mankato Zombie Run
Marauder Run
March MUDness
Margate Dune Dash
Marmion Heroes Mud Run
Marquette Mountain Mud
Marvel Events
Mass Mayhem
Mavericks Mud Run
Max Tracks
MCB Camp Lejeune USAA Grand Prix
McTough Guy
Mean Streets
Medieval Mud
Melbourne Mud Bash
Men’s Health Urbanathalon
Mendon Zombie Run
Michigan Dirty Bird Mud Run
Michigan Zombie Run
Midwest Mud Rush
Miles of Mud
Milton Mud Challenge
Ministry Mud Summit
MOJO Challenge
Monroe Mud Madness
Monster Mudster Run
Monster Race
Montessori Mudstacle
Montpelier Mud Run
Morning Glory Ranch
Mosquito Dash
Mountain Mucker
Mountaineer Mud Run
MS Mud Dash
Muck Run
Mud and Bud Run
Mud and Music Mayhem
Mud and Sweat
Mud Brigade
Mud Chasers
Mud Crazy
Mud Crusade
Mud Dog Challenge
Mud Dogs
Mud Duck Mudder
Mud Fears Me
Mud Gladiators
Mud Guts and Glory
Mud Heights
Mud Madness Run
Mud Mania
Mud Mash
Mud Match
Mud Mingle
Mud Mountain Rock and Run
Mud N Color
Mud N Fun Viking Run
Mud Quest
Mud Run Emerald
Mud Run In The Sun
Mud Run Krusher
Mud Sux Run
Mud Sweat and Beers
Mud Trax Run
Mud U
Mud Up Day
Mudder of all Runs
Mudders Against Domestic Violence
Mudders Day Run
Muddin 4 Life
Muddin for a Cause
Muddy and Messy
Muddy Brute Challenge
Muddy Buddy
Muddy Cheer Challenge
Muddy Fanatic
Muddy Madness
Muddy Mama
Muddy Mates
Muddy Mortal
Muddy Mucker
Muddy Rhino Run
Muddy Udder Pasture Run
Mudtastik Mud Run
National Prep Race
NCTC Mud Run
Next Level Mud Run
Niagara Obstacle Race
Night Games
Nightmare Run
Ninja Mud Run
NorCal Mud Run
Norfolk Fire Department
Novi Obstacle Challenge
Obstacle Adventures
Obstacle Apocalypse
Obstacle Craze
Obstacles Wont Stop Us
OC Bootcamp Games
OCRA UK Championships
OCs Fittest Trainer
OffTerrain Movement and Agility
Oh Muck
Ohio Valley Mud Run
Ohio Zombie Run
One Tough Cookie
One Wicked Run
Operation Pathfinder Challenge
Orlando Fire Run
OutFit Challenge
Overcomer Challenge
Pain Barrier
Pain Is But A Moment In Time
Pangea Adventure Racing
Panther Mud Grudge
Parent and Me Obstacle Challenge
Park Ratheniska GAA
Patriot Challenge
Phi Eta Mud
Pineapple Classic
Pirate Muddy Run
Pirate Plunder Adventure Race
Play Dirty Adventure
Port Macquarie Sand Mudder
PPRD Mini Mudder
Praetorian Race
Pretty Muddy
Primal Challenge
Primal Mud Run
Primal Rush
Project Mud
Proving Grounds
Pumpkin Smash
Quinte Zombie Zone
Race for the ROC
Race the Reaper
Race Your Neighbor
Radford Mission Impossible
RAID Series
Rails To Entrails
Rally At Three Valley
Rebel Race
Rebound Race
Red White and Blue
Redneck Romp Adventure Race
Redneck Run
Reeses Obstacle Race Series
Reigate Rampage Run
Renegade Playground Challenge
Respond Ultimate Mud Challenge
Revolution Runs
RhinO Course
Rhino Gladiator
Rib Race
Rise of the Ronin
River Warrior Mud Run
Roanoke Zombie Run
Rock in the Mud Challenge
Rock On Adventures
Rock Running Obstacle Race
Rock Solid Mud Run
Rock Solid Race
Rockabilly Riot Urban Challenge
Rocklin Ramble
RockMan Challenge
Rogue Runner
Romp at Riddle Point
Romp in the Swamp
Rough and Tumble
Roughneck Stampede
Rowdy Run
Ruckus Obstacle Race Series
Rugged Ranch Run
Rumble Run
Run A Muck
Run and Gun
Run and Gun Race
Run For A Cure Mud Run
Run For The Hills
Run For The Hills Mud Run
Run For Your Lives
Run of the Living Dead
Run or Die
Run The Ranch
Run the ZA
Run To Death
Run Zombie Run
RUNdezvous Race
Running Dead
Running Dead 5K
Running Dirty
Running Scared
Running with the Cows
Russell County Search and Rescue
Sacramento Survivor Challenge
Sacramento Zombie Run
Safety Forces Endurance Challenge
Sam Michael Obstacle Course Race
Sandia OCR Mud Run
Santa Mud Run
Santas Obstacle Challenge
Scattered and Battered
Scavenger Dash
Scotland County Survival Run
Slippery Saints Mud Run
Smorgasbord Race
Snake Hill Slam
South Walton
Spartan Zombie Run
Special Ops Race
Special Ops Series
Special Z Games
Speedway Series
Splat Mud Run
Spring Daze Craze
Spring Fling Obstacle Run
Springfield Urban Warrior Challenge
Spud Mud Run
Sqwish Sqwash
SSC City Challenge
St. Clair Scramble
Steamboat Mad Mud Run
Stoneman Race
Storm the Fort
Strength & Speed’s OCR America
Stronghold Challenge
Stunt Challenge
Summer Daze Craze
Summer Muddin
Superhero Scramble
Survival Sprint
Survive the Climb
Survive the Farm
Swamp Dash and Bash
Swamp Stomp Mud Run
Tac Force Challenge
Tactical Elite Warrior Challenge
Talise Sandstorm
Tampa Mud Race
Tandem Race
Taskforce Live
Terrapin Adventues
That Dam Mud Run
The Almighty
The Battle Run
The Bravest
The Bull Challenge
The Burner
The Challenge Mud Run
The Color Course
The DAM Mud Run
The Dirty Farm Run
The Dirty Rotten Scramble
The Eliminator
The Few The Proud The Muddy
The Gauntlet
The Gladiator Mud Run
The Great Escape MudRun
The Great Escape Savannah
The Great Gauntlet
The Heroes Mud Run
The Hope Challenge
The Mighty Run
The Mud Games
The Mud Run
The MudBug Run
The Muddy Mountain
The Muddy Patriot
The Real McCoy
The Renaissance Run
The Rite
The Rush Games
The Sand Pit
The Scorpion Run
The Siege Race
The Slime Run
The Stampede
The Stampede Australia
The Suffering Series
The Trident Race
The Ultimate Titan Challenge
The Victory Challenge
The Walking Dead Escape
The Young and the Restless
The Zombie Mudder
The Zombie Run
Thin Mint Sprint
ThrillSeeker 5K Stunt Run
Thunder Challenge
Tipperary Mud Run
Titan Challenge
Titan5 Challenge
Top Ninjas
Torture Trails
Tough Bloke Challenge
Tough Dash
Tough Enough
Tough Knight
Tough N Dirty
Tough X Rough
Trail Toad Battle Run
Tribal Extreme Mud Run
Tribal Quest
Trojan Dash
Trojan Race
Trojan Warrior Challenge
Troop Dirty 30 Mud Run
True Mudd
Twisted Tiger Bear Mountain Bash
Twisted Trail
Two Rivers Mudder Fudder
Ultimate Athlete Games
Ultimate Mud Run
Ultimate Mud Warrior
Ultra Challenge
Unbridled Mud Trials
United Hillandalers Challenge
Unleash Your Inner Warrior
Urban Assault
Urban Assault Ride
Urban Mud Assault
Urban Mudder
Urban Training Systems
Urban Warrior Dash
USO of Missouri Mud Run
Valentine Muckfest
Varsity Rush
Verona Mud Fest
Verti GLO
Victory Quest
Viking Assault
Vision Wild Run
Wake Island Mud Run
Walkers 5K
Walking Dead
Warrior Challenge
Warrior Run Mountain Series
Warriors Run
Wash MO Mudder
WCSO Zombie Fun Run
Wee Warrior Dash
Weekend Warrior Race
Wellington Warrior Challenge
Wellsville Zombie Run
West Texas Zombie Run
Westchester Medical Center Trauma Mud Run
WhenLifeSucks MudRun
White Gravel Mines
Wicked Mud Run
Wild Rumpus Race
Wild Sport Series
Wild Warrior Challenge
Wild Wild West Mud Run
Wild Woodlake Mudder
Wildcat Adventure Race
Wildcat Warrior Obstacle Challenge
Wilderness Survivor Games
Willow Warrior
Windsor Marines Fun Mud Run
Winter Daze Craze
Wisconsin Zombie Mud Run
Woods of Terror Zombie Mud Run
World Famous Foam Run
WW Obstacle Course
X Quest
XIP Bypass Mountain Climb
Xtreme Challenge Lodge Hill
Xtreme Muck Ruck
Xtreme Mud Warrior
Xtreme Obstacle Challenge
Xtreme Ranger
Yankee Lake Mud Monster
YMCA Mississippi Mud Mania
Yorkshire Mud Run
Yuba City Mud Run
Z Warrior Sprint
Zombie 5K
Zombie Apocalypse Run
Zombie Bolt
Zombie Challenge
Zombie Dash Hawaii
Zombie Destruction Biathlon
Zombie Fun Run 4 Life
Zombie Insanity
Zombie Invasion Run
Zombie Race LLC
Zombie Run For the Hills
Zombie Run Temecula
Zombie Rundown
Zombie Rush
Zombie Survival
Zombie Vs Survivors Run
Zombie Zurvival Run
ZombieRush Netherlands
Zombies Mud Run