2 events
28
2 events,
28
Greenville New York Sunny Hill Viking Obstacle Race 2018
Columbus Ohio Black Diamond Obstacle Memorial Day Mayhem 2018
1 event
29
1 event
30
3 events
31
3 events,
31
Alberta Canada WILDR Rough Runner 2018
Mount Holly New Jersey RV Devil Dash 2018
Austin Texas Green Beret Challenge XII 2018
49 events
1
49 events,
1
Sewell New Jersey Goliathon IX 2018
Oslo Norway Tough Viking 2018
Bristol United Kingdom Super Human Challenge 2018
Schajik Netherlands Breakout Run 2018
Lawrenceburg Indiana Perfect North Slopes MudStash 2018
Youngwood Pennsylvania Chase the Wolf 5K Obstacle Race 2018
Michigan Tough Mudder 2018
Lille France Muddy Angel Run 2018
Washington D.C. Kids Obstacle Challenge 2018
Payson Arizona Mogollon Monster Mudda 2018
Gainesville Texas M-o-o-ving Thru The Mud With Landon 2018
Hudson Wisconsin Goliath Challenge 2018
Omaha Nebraska The Inflatable Run 2018
Bristol United Kingdom Gung-Ho! 2018
Greenwood Delaware Delmarva Dirt Dash 2018
NSW Australia Suck It Up Buttercup 2018
Saskatchewan Canada Cougars Mud Run 2018
Pompano Beach Florida Pompano Beach Fitness Race 2018
Alberta Canada WILDR Rough Runner 2018
Michigan Tough Mudder America’s Toughest Mudder Midwest 2018
Atlanta Georgia Jail-Break Challenge 2018
Johannesburg South Africa Hollard JURA 2018
Lincoln Rhode Island Reviver Challenge 2018
Lewiston Maine Tough Gator Challenge 2018
Ohio Spartan Race Spartan Beast 2018
Ottawa Canada Mud Hero 6K 2018
Edmonton Canada Rise Up Challenge 2018
Michigan Tough Mudder Half 2018
North Carolina Terrain Racing Mud Run 2018
Westport Massachusetts Samurai Sprint Mud Run 2018
Roseburg Oregon Champions Challenge Summer 2018
Springdale Arkansas Pig Trail Mud Run 2018
Kentucky Tough Mudder 2018
Ontario Canada Grapes of Wrath Mud Run 2018
Boyne Falls Michigan Dirty Dog Dash 2018
North Carolina Warrior Dash 2018
Tri-State New York Spartan Race Spartan Sprint #1 2018
NSW Australia True Grit Sydney 2018
Altoona Alabama Valor’s Run Duellator 2018
Bethel Ohio Beast of the East Fork 2018
Québec Canada Le Défi Forestier Forest Challenge 2018
Abbotsford Canada The 5K Foam Fest 2018
Dallas / Ft Worth Texas Conquer the Gauntlet 2018
Kentucky Tough Mudder Half 2018
Mukwonago Wisconsin Mukwonago YMCA Family Mud Run 2018
Mobile Alabama Just for the Mud of It 2018
60 events
2
60 events,
2
Kentucky Tough Mudder Half 2018
East Grinstead United Kingdom Mud Monsters Run Summer 2018
Kansas City Kansas Wild Women KC Timber Challenge 2018
Michigan Tough Mudder 2018
New Zealand Mountain Valley Mud and Guts 2018
Ohio Spartan Race Spartan Sprint 2018
Ottawa Canada Mud Hero 6K 2018
Bethlehem Pennsylvania Your First Mud Run 2018
Michigan Tough Mudder Half 2018
Seattle Washington Terrain Racing Mud Run 2018
Ottawa Canada Mud Hero Ultra 10K 2018
Kentucky Tough Mudder 2018
Tri-State New York Spartan Race Spartan Sprint #1 2018
NSW Australia True Grit Sydney 2018
14 events
3
0 events
4
0 events
5
0 events
6
0 events
7
44 events
8
44 events,
8
Dover Florida Tactical Titan 2018
Monterey California Spartan Race Spartan Super 2018
Nanaimo Canada The 5K Foam Fest 2018
Brighton United Kingdom Gung-Ho! 2018
Camp Pendleton California Marine Corps Mud Run 2018
Oxfordshire United Kingdom Henley on Thames The Little Welly 2018
Cornwall United Kingdom Newquay Mudathon 2018
Middletown Delaware Delaware Mud Run 2018
Manitoba Canada Mudd Sweat and Tears Gimli 2018
Virginia Tough Mudder Half 2018
Liberal Kansas Arkalon Assault 5K Obstacle Run 2018
Corydon Indiana Mighty Titan Mud Run 2018
Cumbria United Kingdom Gelt Gladiator 2018
Tahoe California Tough Mudder 2018
Colorado Springs Colorado Big Dog Brag 2018
Vail Colorado GoPro Mountain Mud Run 2018
Eastbourne United Kingdom Kapow! Superhero Challenge 2018
Kansas City Missouri Warrior Dash 2018
Philadelphia Pennsylvania MuckFest MS 2018
Atlanta Georgia Terrain Racing Mud Run Summer 2018
Nottingham United Kingdom Warrior Assault 2018
Milwaukee Wisconsin Alpine Adventure Challenge 2018
Alberta Canada Spartan Race Spartan Sprint 2018
Kells Ireland The Muck Of Kells 2018
Kitchener Canada Rugged Maniac 2018
Nottingham United Kingdom Muddy Dog Challenge 2018
Midway Utah The Dirty Dash Spring 2018
Spokane Washington Terrain Racing Mud Run 2018
Brussels Belgium Muddy Angel Run 2018
West Columbia South Carolina Obstacles with a Purpose 2.0 2018
Lincoln Nebraska Big Red Challenge 2018
Victor Idaho Teton Valley Mudzilla Fun Run 2018
Wichita Kansas Wichita Gladiator Dash 2018
Montreal Canada XMAN Race Montreal 2018
Nashville Tennessee Kids Obstacle Challenge 2018
Minneapolis Minnesota Spartan Race Spartan Sprint 2018
OCR World Championships (OCRWC) 24 Hour Enduro Championships 2018
Garwin Iowa The Ridge Run 2018
Rochester New York The Greece Gauntlet 2018
Virginia Tough Mudder 2018
Baton Rouge Louisiana Vanguard Race OCR 5K 2018
Rockford Michigan The Caberfae (Epic) Edition Michigan Adventure Race 2018
Kalamazoo Michigan Kalamazoo Mud Run 2018
59 events
9
59 events,
9
Virginia Tough Mudder 2018
Ohio Savage Race Savage Blitz 2018
Baton Rouge Louisiana Vanguard Race Time Trials 2018
Basildon United Kingdom Foxes Farm Mud Run 2018
Sparta New Jersey Sparta Mud Run 2018
Camp Pendleton California Marine Corps Mud Run 2018
Great Falls Montana Squirrel Obstacle Race 2018
Oxfordshire United Kingdom Henley on Thames The Little Welly 2018
Virginia Tough Mudder Half 2018
Cumbria United Kingdom Gelt Gladiator 2018
Omaha Nebraska Mud Factor 2018
Philadelphia Pennsylvania MuckFest MS 2018
Alberta Canada Spartan Race Spartan Super 2018
Slippery Rock Pennsylvania Bantam Jeep Muddy 5K Race 2018
Tahoe California Tough Mudder 2018
15 events
10
0 events
11
0 events
12
0 events
13
0 events
14
42 events
15
42 events,
15
Gadsden Alabama Barbarian Challenge 2018
Coldwater Michigan ABC Challenge 2018
Sun Peaks Canada The 5K Foam Fest 2018
Birmingham United Kingdom Gung-Ho! 2018
Blackburn United Kingdom Muddy Maniacs Summer 2018
North Vernon Indiana Tame the Terrain 2018
Stockholm Sweden Toughest 2018
New Jersey BoneFrog Challenge 2018
Suffolk United Kingdom Splat Quack GO The Black Ditch 2018
New Salem North Dakota Medieval Rush 2018
Savannah Georgia JCB Mudfest 2018
Yona Guam KONQER Obstacle Race 2018
Whistler Canada Tough Mudder 2018
Dallas Texas AT&T Stadium Spartan Race Spartan Stadium Sprint 2017
Hamilton Montana RC Mudders for Conservation 2018
Ellicottville New York Holiday Valley Mudslide 2018
Ottawa Canada Jump! Duck! Run! 2018
Orange County California Irvine Lake Mudrun Summer of Mud 2018
Portland Oregon Terrain Racing Mud Run 2018
Park City Utah Kids Adventure Games 2018
Indianapolis Indiana Hollis Adams Mud Run 2018
Unity Village Missouri Kansas City Dirty Duo 5K 2018
Eston South Africa IMPI Challenge #2 KZN 2018
Montreal Canada Mud Hero 2018
Whistler Canada Tough Mudder Half 2018
Scotland Tough Mudder Europe’s Toughest Mudder Scotland 2018
Russia Gonka Gladiatorov Russian Gorki 2018
Chepstow United Kingdom Chepstow 5K Bounce Run 2018
Rochester New York Your First Mud Run 2018
Montreal Canada Mud Hero Ultra 10K 2018
Mount Olive New Jersey Raiders Of The Lost Park Mud Run 2018
Ottawa Ohio Challenged Champions Obstacle River Run 2018
Manchester United Kingdom Rough Runner 2018
St. Louis Missouri Green Beret Challenge Operators Course 2018
Brabrand Denmark Nordic Race 2018
Chicago Illinois Kids Obstacle Challenge 2018
Washington D.C. Spartan Race Spartan Sprint 2018
Tennessee Terrain Racing Mud Run 2018
Sanford North Carolina Rogue Alpha Rush 2018
Oak Harbor Ohio Black Swamp Dash 2018
Los Angeles California Hot an Dirty Mud Run Summer 2018
Castlewellan United Kingdom Fin Fun Mud Run 2018
50 events
16
50 events,
16
Budapest Hungary Running Warriors 2018
Stockholm Sweden Toughest Family 2018
Colchester United Kingdom Foxes Farm Mud Run 2018
Whistler Canada Tough Mudder 2018
Meopham United Kingdom Ultm8 Warrior 2018
Shizuoka Prefecture Japan Camp Fuji World Famous Mud Run 2018
Whistler Canada Tough Mudder Half 2018
Manchester United Kingdom Rough Runner 2018
8 events
17
0 events
18
0 events
19
1 event
20
1 event,
20
San Antonio Texas Laser Run and Laser Run with Obstacles 2018
1 event
21
42 events
22
42 events,
22
Midlands United Kingdom The Suffering Obstacle Race Summer Weekender 2018
Oklahoma City Oklahoma Conquer the Gauntlet 2018
Spokane Washington The Dirty Dash 2018
Hendersonville North Carolina Mad Mountain Mud Run 2018
Gueret France Enfer Vert 2018
Boise Idaho Spartan Race Spartan Sprint 2018
Boston Massachusetts Tough Mudder Half 2018
Fremont Nebraska 5K The Hard Way 2018
Charlotte North Carolina Epic Mud Maze 2018
Chicago Illinois Spartan Race Spartan Super 2018
Red Deer Canada The 5K Foam Fest 2018
South West United Kingdom Spartan Race Spartan Super 2018
Donington United Kingdom RunFearless Obstacle Race 2018
Houston Texas NCC Mud Run 2018
Quantico Virginia Marine Corps Mud Run Run Amuck 2018
Centreville Virginia The Ice Cream Race 2018
Mellrichstadt Germany Getting Tough Beat The Summer 2018
Philadelphia Pennsylvania The Inflatable Run 2018
Chester United Kingdom Gung-Ho! 2018
Vincennes Indiana Disaster Blaster 2018
Massachusetts Tough Mudder America’s Toughest Mudder East 2018
Green Bay Wisconsin Crazy Mud Mayhem 2018
New York City New York Rugged Maniac 2018
Wallingford Connecticut Gaylord Gauntlet 2018
Catesby United Kingdom Muddy Furlong Summer Weekender 2018
Squaw Valley California Kids Adventure Games 2018
Toronto Canada Spartan Race Spartan Sprint 2018
Hampshire United Kingdom BRUTAL Run Bordon 2018
Ridgecrest California Desert Mud Dash 2018
West Virginia Terrain Racing Mud Run 2018
Alberta Canada X Warrior Challenge Titan 12 Hour Black Ops 2018
Parma Italy Farm Run 2018
Bowman South Carolina Mud, Sweat, and Beers Trail Run 2018
Pennsylvania Savage Race 2018
Leeds United Kingdom Total Warrior Challenge 2018
Bordeaux France Muddy Angel Run 2018
Boston Massachusetts Tough Mudder 2018
Coshocton Ohio Indian Mud Run 2018
Minden West Virginia Gritty Chix Mud Run 2018
Jersey City New Jersey Youth City Challenge Obstacle Race 2018
Valkenburg Netherlands Cavemanrun Obstacle Run 2018
54 events
23
54 events,
23
Leeds United Kingdom Total Warrior Challenge 2018
Boston Massachusetts Tough Mudder 2018
Eureka Missouri Crusher Race 2018
Baldivis Western Australia XLR8 Kids Obstacle Course Event 2018
Midlands United Kingdom The Suffering Obstacle Race Summer Weekender 2018
South West United Kingdom Spartan Race Spartan Sprint 2018
Boston Massachusetts Tough Mudder Half 2018
Okemo Valley Vermont FieldDaze 2018
Chicago Illinois Spartan Race Spartan Sprint 2018
Surrey United Kingdom Pukka Races World War Run 2018
Toronto Canada Spartan Race Spartan Super 2018
Cambridge United Kingdom Go Insane Summer 2018
12 events
24
0 events
25
0 events
26
0 events
27
1 event
28
1 event,
28
Jackson Ohio Green Beret Challenge Behind Enemy Lines Survive & Evade 2018
30 events
29
30 events,
29
Medicine Hat Alberta Canada The 5K Foam Fest 2018
Towcester United Kingdom Gung-Ho! 2018
Manchester United Kingdom Kapow! Obstacle Course 2018
Ashby de la Zouch United Kingdom Zeus Races 2018
British Columbia Canada Mudd Sweat and Tears Prince George 2018
Borlänge Sweden Tough Race Sweden 2018
Torrington Connecticut WYLD Obstacle Mud Run 2018
Lancaster United Kingdom Badass Mucker Summer 2018
Sorn United Kingdom Energy Fitness Energize 2 Recharged 2018
Columbia Missouri Splat Jr Mud Run 2018
Caldwell Ohio Wolf Run 5K 2018
Portland Oregon Rugged Maniac 2018
Windsor United Kingdom Muddy Dog Challenge 2018
Pueblo Colorado Big Dog Brag 2018
Leeds United Kingdom Kapow! Obstacle Course 2018
Queensland Australia Battlefield Challenge 2018
Minnesota Warrior Dash 2018
Lancaster United Kingdom Badass Mucker Junior 2018
Marseilles Illinois Dirt Runner Obstacle Night 5K Run 2018
Monticello New York Terrain Racing Mud Run 2018
South Sound Washington The Dirty Dash 2018
Big Sky Montana Kids Adventure Games 2018
Crandon Wisconsin Legionnaire Mud Challenge 2018
United Kingdom Judgement Day Summer OCR Extravaganza 2018
Munich Germany XLETIX Challenge 2018
St. Cloud Florida Robo Mud Run 2018
Huntingdon United Kingdom GoFeral OCR 2018
Esbjerg Denmark OCR European Championships 2018
Kansas City Kansas Kids Obstacle Challenge 2018
35 events
30
35 events,
30
Mechanicsville Maryland Muddy Princess 2018
Queensland Australia Battlefield Challenge 2018
Gosfield United Kingdom BlitzFitMe BlitzXtreme Run IV 2018
Edmonton Canada X Warrior Challenge Canada Day X Run 2018
Wetherby United Kingdom Ultm8 Warrior 2018
Bratislava Slovakia Tvrdak Race 2018
6 events
1
