Colorado (CO) Mud Runs & Obstacle Races

A complete list, guide & directory to obstacle races, adventure runs, and mud runs in Colorado

Click an event name below to see course descriptions, obstalce lists, coupons, discounts, prizes, awards, parking cost, spectator fees and more about each event. You can also click here to find permanent obstacle courses & OCR training gyms and boxes in Colorado.

  • Race discount More info
  • October 10, 2021
    Colorado Spartan Race Spartan Ultra Beast World Championships 50K 2021
    Telluride Ski Resort, Telluride, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 09, 2021
    Colorado Spartan Race Spartan Beast 21K 2021
    Telluride Ski Resort, Telluride, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • September 18, 2021
    La Salle Colorado CersusLuv 2021
    Fritzler Farm Park, La Salle, CO, United States
    Save $5 on your Cerus with code MRG5 Learn More
  • August 14, 2021
    Minturn Colorado Vail Kids Adventure Games 2021
    Maloit Park, Minturn, CO,
    Save $10 on your Kids Adventure Games with code MRG2019 Learn More
  • August 07, 2021
    Denver Colorado Rugged Maniac 2021
    Thunder Valley Motocross, Lakewood, CO, United States
    Save $5 on your Rugged Maniac with code MRG21 Learn More
  • July 31, 2021
    Colorado Springs Colorado BIGDOGBRAG The Colorado Mud Run 2021
    Ram Off-Road Park, Colorado Springs, CO, United States
    Save $5 on your Big Dog Brag with code MRG5 Learn More
  • July 25, 2021
    Colorado Tough Mudder Classic 10 Mile & 5K 2021
    Sterling Ranch, Littleton, CO, United States
      Learn More
  • July 24, 2021
    Colorado Tough Mudder Classic 10 Mile & 5K 2021
    Sterling Ranch, Littleton, CO, United States
      Learn More
  • June 20, 2021
    Colorado Springs Colorado Spartan Race Spartan Sprint 5K 2021
    Pikes Peak International Raceway, Fountain, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • June 19, 2021
    Colorado Springs Colorado Spartan Race Spartan Super 10K 2021
    Pikes Peak International Raceway, Fountain, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • June 05, 2021
    Greeley Colorado CerusRuk 2020
    Platte River Fort, Greeley, CO, United States
    Save $5 on your Cerus with code MRG5 Learn More
  • August 02, 2020
    Denver Colorado Subaru Kids Obstacle Challenge 2020
    Apex Center, Arvada, CO, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE20 Learn More
  • August 01, 2020
    Denver Colorado Subaru Kids Obstacle Challenge 2020
    Apex Center, Arvada, CO, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE20 Learn More
  • June 06, 2020
    Vail Colorado GoPro Mountain Games Mountain Mud Run 2020
    Vail Mountain, Vail, CO, United States
    Save 10% on your GoPro Mountain Games with code GETONIT Learn More
  • June 06, 2020
    Colorado Springs Colorado Big Dog Brag 2020
    Ram Off-Road Park, Colorado Springs, CO, United States
    Save $5 on your Big Dog Brag with code MRG5 Learn More
  • February 22, 2020
    Como Colorado Abominable Winter Obstacle Adventure 2020
    Camp Como, Como, CO, United States
      Learn More
  • October 05, 2019
    Littleton Colorado The Great Pumpkin Haul 2019
    The Botanic Gardens at Chatfield, Littleton, CO, United States
      Learn More
  • September 21, 2019
    La Salle Colorado CerusLuv 2019
    Fritzler Farm Park, La Salle, CO, United States
    Save $5 on your Cerus with code MRG5 Learn More
  • September 14, 2019
    Denver Colorado MuckFest 2019
    Salisbury North, Parker, CO, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • September 14, 2019
    Colorado Warrior Dash 2019
    Colorado Renaissance Festival, Larkspur, CO, United States
    Save $5 on your Warrior Dash with code MRGWD719 Learn More
  • September 07, 2019
    Colorado Springs Colorado Muddy Dash Colorado Springs 2019
    Ram Off-Road Park, Colorado Springs, CO, United States
      Learn More
  • September 07, 2019
    Denver Colorado Terrain Race Mud Run 2019
    The Recess Factory, Erie, CO, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • August 11, 2019
    Denver Colorado Muddy Princess 2019
    The Recess Factory, Erie, CO, United States
      Learn More
  • August 11, 2019
    Colorado Tough Mudder Classic & 5K 2019
    Sterling Ranch, Littleton, CO, United States
      Learn More
  • August 10, 2019
    Vail Colorado Kids Adventure Games 2019
    Vail Mountain, Vail, CO, United States
    Save $10 on your Kids Adventure Games with code MRG2019 Learn More
  • August 10, 2019
    Colorado Tough Mudder Classic & 5K 2019
    Sterling Ranch, Littleton, CO, United States
      Learn More
  • August 10, 2019
    Denver Colorado Rugged Maniac 2019
    Thunder Valley Motocross, Lakewood, CO, United States
    Save $5 on your Rugged Maniac with code MRG21 Learn More
  • August 04, 2019
    Colorado Rockies Spartan Race Spartan Sprint 2019
    Snowmass, Snowmass Village, CO, United States
    Save 50% with a Spartan Pass! Learn More
  • August 03, 2019
    Colorado Rockies Spartan Race Spartan Beast 2019
    Snowmass, Snowmass Village, CO, United States
    Save 50% with a Spartan Pass! Learn More
  • August 03, 2019
    Colorado Rockies Spartan Race Spartan Ultra Beast 2019
    Snowmass, Snowmass Village, CO, United States
    Save 50% with a Spartan Pass! Learn More
  • July 28, 2019
    Denver Colorado Kids Obstacle Challenge 2019
    Apex Center, Arvada, CO, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE20 Learn More
  • July 27, 2019
    Denver Colorado Kids Obstacle Challenge 2019
    Apex Center, Arvada, CO, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE20 Learn More
  • July 14, 2019
    Fort Carson Colorado Springs Spartan Race Spartan Sprint 2019
    Fort Carson Army Base, Fort Carson, CO, United States
    Save 50% with a Spartan Pass! Learn More
  • July 13, 2019
    Fort Carson Colorado Springs Spartan Race Spartan Super 2019
    Fort Carson Army Base, Fort Carson, CO, United States
    Save 50% with a Spartan Pass! Learn More
  • June 29, 2019
    Colorado Springs Colorado Big Dog Brag 2019
    Ram Off-Road Park, Colorado Springs, CO, United States
    Save $5 on your Big Dog Brag with code MRG5 Learn More
  • June 08, 2019
    Vail Colorado GoPro Mountain Games Mountain Mud Run 2019
    Vail Mountain, Vail, CO, United States
    Save 10% on your GoPro Mountain Games with code GETONIT Learn More
  • June 08, 2019
    Pueblo Colorado Big Dog Brag 2019
    CSU-Pueblo ThunderBowl Football Stadium, Pueblo, CO, United States
    Save $5 on your Big Dog Brag with code MRG5 Learn More
  • May 11, 2019
    Loveland Colorado CerusRuk 2019
    Sylvan Dale Ranch, Loveland, CO, United States
    Save $5 on your Cerus with code MRG5 Learn More
  • February 02, 2019
    Fairplay Colorado Abominable Winter Adventure Run 2019
    Camp Como, Como, CO, United States
      Learn More
  • October 27, 2018
    Littleton Colorado The Great Pumpkin Haul 2018
    The Botanic Gardens at Chatfield, Littleton, CO, United States
      Learn More
  • October 27, 2018
    Colorado Springs Colorado Ruffin Zombies 2018
    Palmer Park Colorado Springs, Colorado Springs, CO, United States
      Learn More
  • October 07, 2018
    Loveland Colorado CerusLuv OCR 2018
    North Lake Park Loveland, Loveland, CO, United States
    Save $5 on your Cerus with code MRG5 Learn More
  • September 22, 2018
    Peyton Colorado Ruffin Mudder 2018
    TBA – Peyton, CO, Peyton, CO, United States
      Learn More
  • September 15, 2018
    Colorado Warrior Dash 2018
    Colorado Renaissance Festival, Larkspur, CO, United States
    Save $5 on your Warrior Dash with code MRGWD719 Learn More
  • September 15, 2018
    Denver Colorado MuckFest MS 2018
    Salisbury North, Parker, CO, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • September 08, 2018
    Denver Colorado Terrain Racing Mud Run 2018
    The Recess Factory, Erie, CO, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • August 26, 2018
    Colorado Tough Mudder Half 2018
    Snowmass, Snowmass Village, CO, United States
      Learn More
  • August 26, 2018
    Colorado Tough Mudder 2018
    Snowmass, Snowmass Village, CO, United States
      Learn More
  • August 25, 2018
    Colorado Tough Mudder Half 2018
    Snowmass, Snowmass Village, CO, United States
      Learn More
  • August 25, 2018
    Colorado Tough Mudder 2018
    Snowmass, Snowmass Village, CO, United States
      Learn More
  • August 19, 2018
    Colorado Rockies Spartan Race Spartan Sprint 2018
    Breckenridge Ski Resort, Breckenridge, CO, United States
    Save 50% with a Spartan Pass! Learn More
  • August 18, 2018
    Colorado Rockies Spartan Race Spartan Beast 2018
    Breckenridge Ski Resort, Breckenridge, CO, United States
    Save 50% with a Spartan Pass! Learn More
  • August 12, 2018
    Denver Colorado Muddy Princess 2018
    The Recess Factory, Erie, CO, United States
      Learn More
  • August 11, 2018
    Vail Colorado Kids Adventure Games 2018
    Vail Mountain, Vail, CO, United States
    Save $10 on your Kids Adventure Games with code MRG2019 Learn More
  • August 11, 2018
    Denver Colorado Rugged Maniac 2018
    Thunder Valley Motocross, Lakewood, CO, United States
    Save $5 on your Rugged Maniac with code MRG21 Learn More
  • August 04, 2018
    Colorado Springs Colorado Terrain Racing Mud Run 2018
    Ram Off-Road Park, Colorado Springs, CO, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • July 28, 2018
    Pagosa Springs Colorado Pirate Plunge Mud Run 2018
    Yamaguchi Park, Pagosa Springs, CO, United States
      Learn More
  • July 08, 2018
    Denver Colorado Kids Obstacle Challenge 2018
    Philip S Miller Park, Castle Rock, CO, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE20 Learn More
  • July 07, 2018
    Denver Colorado Kids Obstacle Challenge 2018
    Philip S Miller Park, Castle Rock, CO, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE20 Learn More
  • June 30, 2018
    Pueblo Colorado Big Dog Brag 2018
    CSU-Pueblo ThunderBowl Football Stadium, Pueblo, CO, United States
    Save $5 on your Big Dog Brag with code MRG5 Learn More
  • June 09, 2018
    Vail Colorado GoPro Mountain Mud Run 2018
    Vail Mountain, Vail, CO, United States
    Save 10% on your GoPro Mountain Games with code GETONIT Learn More
  • June 09, 2018
    Colorado Springs Colorado Big Dog Brag 2018
    Ram Off-Road Park, Colorado Springs, CO, United States
    Save $5 on your Big Dog Brag with code MRG5 Learn More
  • May 12, 2018
    Fort Collins Colorado CerusRuk 2018
    Snowcliff Ranch, Livermore, CO, United States
    Save $5 on your Cerus with code MRG5 Learn More
  • May 06, 2018
    Fort Carson Colorado Spartan Race Spartan Sprint Military 2018
    Fort Carson Army Base, Fort Carson, CO, United States
    Save 50% with a Spartan Pass! Learn More
  • May 05, 2018
    Fort Carson Colorado Spartan Race Spartan Super Military 2018
    Fort Carson Army Base, Fort Carson, CO, United States
    Save 50% with a Spartan Pass! Learn More
  • April 22, 2018
    Colorado Springs Colorado Kids Ninja Warrior 2018
    Springs Ninja Park, Colorado Springs, CO, United States
      Learn More
  • February 03, 2018
    Fairplay Colorado Abominable Winter Adventure Run 2018
    Camp Como, Como, CO, United States
      Learn More
  • November 05, 2017
    Colorado Springs Colorado Ninja Warrior Competition 2017
    Springs Ninja Park, Colorado Springs, CO, United States
      Learn More
  • November 05, 2017
    Denver Colorado Wolfpack Ninja Tour Ninja Warrior Competition #2 2017
    Budweiser Events Center, Loveland, CO, United States
      Learn More
  • November 04, 2017
    Denver Colorado Wolfpack Ninja Tour Ninja Warrior Competition #2 2017
    Budweiser Events Center, Loveland, CO, United States
      Learn More
  • November 03, 2017
    Denver Colorado Wolfpack Ninja Tour Ninja Warrior Competition #2 2017
    Budweiser Events Center, Loveland, CO, United States
      Learn More
  • October 28, 2017
    Colorado Springs Colorado Ruffin Mudder Zombies 2017
    Palmer Park Colorado Springs, Colorado Springs, CO, United States
      Learn More
  • September 30, 2017
    Parker Colorado Vampire 5K 2017
    Flat Acres Farm, Parker, CO, United States
      Learn More
  • September 17, 2017
    Colorado Springs Colorado Kids Ninja Competition 2017
    Springs Ninja Park, Colorado Springs, CO, United States
      Learn More
  • September 16, 2017
    Colorado Warrior Dash 2017
    Colorado Renaissance Festival, Larkspur, CO, United States
    Save $5 on your Warrior Dash with code MRGWD719 Learn More
  • August 27, 2017
    Colorado Rockies Spartan Race Spartan Sprint 2017
    Beaver Run Resort, Breckenridge, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • August 26, 2017
    Calhan Colorado Ruffin Mudder 2017
    Rocky Mountain Roosters, Calhan, CO, United States
      Learn More
  • August 26, 2017
    Colorado Rockies Spartan Race Spartan Ultra Beast 2017
    Beaver Run Resort, Breckenridge, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • August 26, 2017
    Colorado Rockies Spartan Race Spartan Beast 2017
    Beaver Run Resort, Breckenridge, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • August 26, 2017
    Denver Colorado Terrain Racing Mud Run 2017
    The Recess Factory, Erie, CO, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • August 12, 2017
    Denver Colorado Rugged Maniac 2017
    Thunder Valley Motocross, Lakewood, CO, United States
    Save $5 on your Rugged Maniac with code MRG21 Learn More
  • July 22, 2017
    Pagosa Springs Colorado Pirate Plunge Mud Run 2017
    Yamaguchi Park, Pagosa Springs, CO, United States
      Learn More
  • July 16, 2017
    Colorado Tough Mudder Half 2017
    Copper Mountain Ski Resort, Copper Mountain, CO, United States
    Save $10 on your Tough Mudder with code MRGTMH Learn More
  • July 16, 2017
    Colorado Tough Mudder 2017
    Copper Mountain Ski Resort, Copper Mountain, CO, United States
      Learn More
  • July 15, 2017
    Denver Colorado MuckFest MS 2017
    Salisbury North, Parker, CO, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • July 15, 2017
    Colorado Tough Mudder Half 2017
    Copper Mountain Ski Resort, Copper Mountain, CO, United States
    Save $10 on your Tough Mudder with code MRGTMH Learn More
  • July 15, 2017
    Colorado Tough Mudder 2017
    Copper Mountain Ski Resort, Copper Mountain, CO, United States
      Learn More
  • June 24, 2017
    Pueblo Colorado Big Dog Brag Mud Run 2017
    CSU-Pueblo ThunderBowl Football Stadium, Pueblo, CO, United States
    Save $5 on your Big Dog Brag with code MRG5 Learn More
  • June 17, 2017
    Colorado Springs Colorado Mud Factor 2017
    Aztec Familly Raceway, Colorado Springs, CO, United States
      Learn More
  • June 17, 2017
    Denver Colorado Kids Obstacle Challenge 2017
    Westminster City Park, Westminster, CO, United States
    Save 10% on your Kids Obstacle Challenge with code MUDRUNGUIDE20 Learn More
  • June 10, 2017
    Vail Colorado GoPro Mountain Games 2017
    Golden Peak, Vail, CO, United States
    Save 10% on your GoPro Mountain Games with code GETONIT Learn More
  • June 10, 2017
    Copper Mountain Colorado Dirty Girl Mud Run 2017
    Copper Mountain Ski Resort, Copper Mountain, CO, United States
    Save 10% on your Dirty Girl Mud Run with code MRG10 Learn More
  • June 03, 2017
    Colorado Springs Colorado BigDogBrag Mud Run 2017
    Ram Off-Road Park, Colorado Springs, CO, United States
    Save $5 on your Big Dog Brag with code MRG5 Learn More
  • June 03, 2017
    Westminster Colorado Hard As Nails 2017
    Westin Westminster Hotel, Westminster, CO, United States
      Learn More
  • May 20, 2017
    Colorado Warrior Playground Ultimate Ninja Athlete Regional 2017
    Warrior Playground, Longmont, CO, United States
      Learn More
  • May 14, 2017
    Colorado Spartan Race Spartan Military Sprint 2017
    Fort Carson Army Base, Fort Carson, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • May 13, 2017
    Grand Junction Colorado The Gauntlet Race 2017
    Grand Junction Motor Speedway, Grand Junction, CO, United States
      Learn More
  • May 13, 2017
    Colorado Spartan Race Spartan Military Super 2017
    Fort Carson Army Base, Fort Carson, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • April 30, 2017
    Denver Colorado Wolfpack Ninjas Tour Ninja Warrior Competition 2017
    Magness Arena, Denver, CO, United States
      Learn More
  • April 29, 2017
    Denver Colorado Wolfpack Ninjas Tour Ninja Warrior Competition 2017
    Magness Arena, Denver, CO, United States
      Learn More
  • March 25, 2017
    Colorado Ninja Brand Parkour Ultimate Ninja Athlete Qualifier 2017
    Ninja Brand Parkour Gym, Henderson, CO, United States
      Learn More
  • January 28, 2017
    Como Colorado Abominable Winter Obstacle Adventure 2017
    Camp Como, Como, CO, United States
      Learn More
  • January 14, 2017
    Colorado Ninja Intensity Ultimate Ninja Athlete Qualifier 2017
    Ninja Intensity, Castle Rock, CO, United States
      Learn More
  • October 22, 2016
    Littleton Colorado The Great Pumpkin Haul 2016
    The Botanic Gardens at Chatfield, Littleton, CO, United States
      Learn More
  • October 08, 2016
    Longmont Colorado Longmont Ninja Tournament Finals 2016
    Warrior Playground, Longmont, CO, United States
      Learn More
  • September 17, 2016
    Colorado Warrior Dash 2016
    Music Mountain Amphitheater, Larkspur, CO, United States
    Save $5 on your Warrior Dash with code MRGWD719 Learn More
  • September 11, 2016
    Colorado Tough Mudder 2016
    Snowmass, Snowmass Village, CO, United States
    Save $25 on your Tough Mudder with code MRGU25 Learn More
  • September 10, 2016
    Colorado Tough Mudder 2016
    Snowmass, Snowmass Village, CO, United States
    Save $25 on your Tough Mudder with code MRGU25 Learn More
  • September 10, 2016
    Copper Mountain Colorado Dirty Girl Mud Run 2016
    Copper Mountain Ski Resort, Copper Mountain, CO, United States
    Save 10% on your Dirty Girl Mud Run with code MRG10 Learn More
  • August 28, 2016
    Breckenridge Colorado Spartan Race Spartan Sprint 2016
    Beaver Run Resort, Breckenridge, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • August 27, 2016
    Breckenridge Colorado Spartan Race Spartan Beast 2016
    Beaver Run Resort, Breckenridge, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • August 21, 2016
    Colorado Springs Colorado Scavenger Dash 2016
    Jack Quinn Irish Alehouse and Pub, Colorado Springs, CO, United States
      Learn More
  • August 20, 2016
    Denver Colorado Scavenger Dash 2016
    Blake Street Tavern, Denver, CO, United States
      Learn More
  • August 13, 2016
    Colorado Springs Colorado The Dirty Dash 2016
    Pikes Peak International Raceway, Fountain, CO, United States
    Save $5 on your The Dirty Dash with code MRG2020 Learn More
  • August 13, 2016
    Winter Park Colorado O2X Summit Challenges 2016
    Winter Park Resort, Winter Park, CO, United States
      Learn More
  • August 06, 2016
    Denver Colorado Rugged Maniac 2016
    Thunder Valley Motocross, Lakewood, CO, United States
    Save $5 on your Rugged Maniac with code MRG21 Learn More
  • July 23, 2016
    Pagosa Springs Colorado Pirate Plunge Mud Run 2016
    Yamaguchi Park, Pagosa Springs, CO, United States
      Learn More
  • July 16, 2016
    Denver Colorado MuckFest MS 2016
    Salisbury North, Parker, CO, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • June 25, 2016
    Pueblo Colorado Big Dog Brag The Funner Mud Run 2016
    CSU-Pueblo ThunderBowl Football Stadium, Pueblo, CO, United States
    Save $5 on your Big Dog Brag with code MRG5 Learn More
  • June 11, 2016
    Denver Colorado Broncos Stadium Challenge 2016
    Sports Authority Field At Mile High, Denver, CO, United States
      Learn More
  • June 11, 2016
    Colorado Warrior Playground Ultimate Ninja Athlete Qualifier 2016
    Warrior Playground, Longmont, CO, United States
      Learn More
  • June 11, 2016
    Vail Colorado GoPro Mountain Games Mountain Mud Run 2016
    Golden Peak, Vail, CO, United States
    Save 10% on your GoPro Mountain Games with code GETONIT Learn More
  • June 04, 2016
    Colorado Springs Colorado Big Dog Brag The Funner Mud Run 2016
    Ram Off-Road Park, Colorado Springs, CO, United States
    Save $5 on your Big Dog Brag with code MRG5 Learn More
  • June 04, 2016
    Westminster Colorado Hard As Nails 2016
    Westin Westminster Hotel, Westminster, CO, United States
      Learn More
  • May 28, 2016
    Denver Colorado Terrain Mud Run 2016
    The Recess Factory, Erie, CO, United States
    Save $5 on your Terrain Racing with code MUDRUN5 Learn More
  • May 15, 2016
    Colorado Spartan Race Spartan Military Sprint 2016
    Fort Carson Army Base, Fort Carson, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • May 14, 2016
    Fort Collins Colorado Wolfpack Ninja Tour 2016
    Miramont Lifestyle Fitness North, Fort Collins, CO, United States
      Learn More
  • May 14, 2016
    Colorado Spartan Race Spartan Military Super 2016
    Fort Carson Army Base, Fort Carson, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • May 07, 2016
    Grand Junction Colorado The Gauntlet Race 2016
    Grand Junction Motor Speedway, Grand Junction, CO, United States
      Learn More
  • April 16, 2016
    Lakewood Colorado The Hottest Habanero Hustle (HIII) Obstacle Course Race 2016
    JeffCo Open School, Lakewood, CO, United States
      Learn More
  • April 10, 2016
    Denver Colorado Man Challenge Denver 2016
    Dick’s Sporting Goods Park, Commerce City, CO, United States
      Learn More
  • April 09, 2016
    Denver Colorado Man Challenge Denver 2016
    Dick’s Sporting Goods Park, Commerce City, CO, United States
      Learn More
  • April 02, 2016
    Colorado XOC Ultimate Ninja Athlete Qualifier 2016
    XOC Xtreme Obstacle Course, Highlands Ranch, CO, United States
      Learn More
  • February 13, 2016
    Colorado Urban Acrobatics Ultimate Ninja Athlete Qualifier 2016
    Urban Acrobatics, Thornton, CO, United States
      Learn More
  • January 30, 2016
    Como Colorado Abominable Winter Adventure Run 2016
    Camp Como, Como, CO, United States
      Learn More
  • November 14, 2015
    Boulder Colorado Ninja Smack Down November 2015
    APEX School of Movement Louisville, Louisville, CO, United States
      Learn More
  • October 30, 2015
    Denver Colorado The Zombie Run 2015
    The Recess Factory, Erie, CO, United States
    Save $15 on your The Zombie Run with code MRG15 Learn More
  • October 25, 2015
    Denver Colorado XOC Obstacle Competition 2015
    ATA Karate Denver, Littleton, CO, United States
      Learn More
  • October 10, 2015
    Golden Colorado Ninja Smack Down October 2015
    Earth Treks Golden, Golden, CO, United States
      Learn More
  • September 26, 2015
    Boulder Colorado Ninja Smack Down September 2015
    The Spot Bouldering Gym, Boulder, CO, United States
      Learn More
  • September 19, 2015
    Denver Colorado 5KRunDead Zombie Run Fall 2015
    Flat Acres Farm, Parker, CO, United States
      Learn More
  • September 13, 2015
    Colorado Tough Mudder 2015
    Snowmass, Snowmass Village, CO, United States
      Learn More
  • September 12, 2015
    Colorado Tough Mudder 2015
    Snowmass, Snowmass Village, CO, United States
      Learn More
  • September 12, 2015
    Denver Colorado Dirty Girl Mud Run 2015
    Copper Mountain Ski Resort, Copper Mountain, CO, United States
    Save $15 on your Dirty Girl Mud Run with code MRG15 Learn More
  • August 23, 2015
    Colorado Springs Colorado Scavenger Dash 2015
    Jack Quinn Irish Alehouse and Pub, Colorado Springs, CO, United States
      Learn More
  • August 23, 2015
    Larkspur Colorado Insanity Mud Run 2015
    Music Mountain Amphitheater, Larkspur, CO, United States
      Learn More
  • August 22, 2015
    Calhan Colorado Ruffin Mudder 2015
    Rocky Mountain Roosters, Calhan, CO, United States
      Learn More
  • August 22, 2015
    Denver Colorado Scavenger Dash 2015
    Blake Street Tavern, Denver, CO, United States
      Learn More
  • August 22, 2015
    Larkspur Colorado Insanity Mud Run 2015
    Music Mountain Amphitheater, Larkspur, CO, United States
      Learn More
  • August 22, 2015
    Colorado Mudderella 2015
    Snowmass, Snowmass Village, CO, United States
      Learn More
  • August 15, 2015
    Winter Park Colorado O2X Summit Challenges 2015
    Winter Park Resort, Winter Park, CO, United States
      Learn More
  • August 15, 2015
    Denver Colorado WIPEOUTRUN 2015
    Dick’s Sporting Goods Park, Commerce City, CO, United States
    Save $10 on your WIPEOUTRUN with code MRGFINAL10 Learn More
  • August 15, 2015
    Colorado Springs Colorado The Dirty Dash 2015
    Pikes Peak International Raceway, Fountain, CO, United States
    Save $5 on your The Dirty Dash with code MRG2020 Learn More
  • August 15, 2015
    Colorado Warrior Dash 2015
    Copper Mountain Ski Resort, Copper Mountain, CO, United States
    Save $5 on your Warrior Dash with code MRGWD719 Learn More
  • August 02, 2015
    Denver Colorado Rugged Maniac 2015
    Thunder Valley Motocross, Lakewood, CO, United States
    Save $5 on your Rugged Maniac with code MRG21 Learn More
  • August 01, 2015
    Alamosa Colorado Hogwaller Mud Run 2015
    Cole Park, Alamosa, CO, United States
      Learn More
  • August 01, 2015
    Denver Colorado Rugged Maniac 2015
    Thunder Valley Motocross, Lakewood, CO, United States
    Save $5 on your Rugged Maniac with code MRG21 Learn More
  • July 25, 2015
    Pagosa Springs Colorado Pirate Plunge Mud Run 2015
    Yamaguchi Park, Pagosa Springs, CO, United States
      Learn More
  • July 11, 2015
    Pueblo Colorado Big Dog Brag The Funner Mud Run 2015
    CSU-Pueblo ThunderBowl Football Stadium, Pueblo, CO, United States
    Save $5 on your Big Dog Brag with code MRG5 Learn More
  • June 14, 2015
    Breckenridge Colorado Spartan Race Spartan Sprint 2015
    Breckenridge Ski Resort, Breckenridge, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • June 13, 2015
    Breckenridge Colorado Spartan Race Spartan Beast 2015
    Breckenridge Ski Resort, Breckenridge, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • June 06, 2015
    Colorado Springs Colorado Big Dog Brag Funner Mud Run 2015
    Ram Off-Road Park, Colorado Springs, CO, United States
    Save $5 on your Big Dog Brag with code MRG5 Learn More
  • May 17, 2015
    Westminster Colorado Hard As Nails 2015
    Westin Westminster Hotel, Westminster, CO, United States
      Learn More
  • May 16, 2015
    Denver Colorado MuckFest MS 2015
    Music Mountain Amphitheater, Larkspur, CO, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • May 09, 2015
    Grand Junction Colorado The Gauntlet Race 2015
    Grand Junction Motor Speedway, Grand Junction, CO, United States
      Learn More
  • May 03, 2015
    Colorado Spartan Race Spartan Military Sprint 2015
    Fort Carson Army Base, Fort Carson, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • May 02, 2015
    Denver Colorado 5KRunDead Zombie Run 2015
    Flat Acres Farm, Parker, CO, United States
      Learn More
  • May 02, 2015
    Colorado Spartan Race Spartan Military Sprint 2015
    Fort Carson Army Base, Fort Carson, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • May 02, 2015
    Boulder Colorado Shape Diva Dash 2015
    Bohn Park, Lyons, CO, United States
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  • January 31, 2015
    Como Colorado Abominable Winter Obstacle Adventure 2015
    Camp Como, Como, CO, United States
      Learn More
  • September 20, 2014
    Denver Colorado Dirty Girl Mud Run 2014
    The Recess Factory, Erie, CO, United States
    Save 10% on your Dirty Girl Mud Run with code MRG10 Learn More
  • September 13, 2014
    Denver Colorado MuckFest MS 2014
    Music Mountain Amphitheater, Larkspur, CO, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • September 07, 2014
    Colorado Tough Mudder 2014
    Snowmass, Snowmass Village, CO, United States
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  • September 06, 2014
    Loveland Colorado Mud Brigade 2014
    The Ranch Events Complex, Loveland, CO, United States
      Learn More
  • September 06, 2014
    Colorado Tough Mudder 2014
    Snowmass, Snowmass Village, CO, United States
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  • August 30, 2014
    Denver Colorado LoziLu Women’s Mud Run 2014
    TBA 2 hour drive from Denver, Co, Denver, CO, United States
      Learn More
  • August 23, 2014
    Fort Carson Colorado Green Beret Challenge 2014
    Fort Carson Army Base, Fort Carson, CO, United States
      Learn More
  • August 23, 2014
    Calhan Colorado Ruffin Mudder 2014
    Rocky Mountain Roosters, Calhan, CO, United States
      Learn More
  • August 17, 2014
    Aurora Colorado Windsor Marines Fun Mud Run 2014
    Aurora Coal Creek Arena, Aurora, CO, United States
      Learn More
  • August 16, 2014
    Aurora Colorado Windsor Marines Fun Mud Run 2014
    Aurora Coal Creek Arena, Aurora, CO, United States
      Learn More
  • August 16, 2014
    Colorado Springs Colorado The Dirty Dash 2014
    Pikes Peak International Raceway, Fountain, CO, United States
    Save $5 on your The Dirty Dash with code MRG2020 Learn More
  • August 16, 2014
    Denver Colorado Hit and Run 5K 2014
    Dick’s Sporting Goods Park, Commerce City, CO, United States
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  • August 16, 2014
    Colorado Warrior Dash 2014
    Copper Mountain Ski Resort, Copper Mountain, CO, United States
    Save $5 on your Warrior Dash with code MRGWD719 Learn More
  • August 02, 2014
    Denver Colorado The Zombie Run 2014
    The Recess Factory, Erie, CO, United States
    Save $15 on your The Zombie Run with code MRG15 Learn More
  • August 02, 2014
    Colorado Springs Colorado Big Dog Brag 2014
    Ram Off-Road Park, Colorado Springs, CO, United States
    Save $5 on your Big Dog Brag with code MRG5 Learn More
  • July 26, 2014
    Durango Colorado Pirate Plunge Mud Run 2014
    Pagosa Springs High School, Pagosa Springs, CO, United States
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  • July 26, 2014
    Denver Colorado Rugged Maniac 2014
    Thunder Valley Motocross, Lakewood, CO, United States
    Save $5 on your Rugged Maniac with code MRG21 Learn More
  • July 19, 2014
    Colorado Survivor Mud Run 2014
    Valley Dirt Riders, Berthoud, CO, United States
      Learn More
  • June 07, 2014
    Vail Colorado Eddie Bauer Badass Dash GoPro Mountain Games 2014
    Gerald R Ford Amphitheater, Vail, CO, United States
    Save $10 on your Badass Dash with code MRG10 Learn More
  • June 01, 2014
    Larkspur Colorado Insantity Mud Run 2014
    Music Mountain Amphitheater, Larkspur, CO, United States
      Learn More
  • May 31, 2014
    Larkspur Colorado Insantity Mud Run 2014
    Music Mountain Amphitheater, Larkspur, CO, United States
      Learn More
  • May 10, 2014
    Westminster Colorado Hard As Nails Obstacle Mud Race 2014
    Westin Westminster Hotel, Westminster, CO, United States
      Learn More
  • May 10, 2014
    Boulder Colorado Shape Diva Dash 2014
    Bohn Park, Lyons, CO, United States
      Learn More
  • May 04, 2014
    Colorado Spartan Race Spartan Military Sprint 2014
    Fort Carson Army Base, Fort Carson, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • May 03, 2014
    Colorado Spartan Race Spartan Military Sprint 2014
    Fort Carson Army Base, Fort Carson, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • October 12, 2013
    Denver Colorado LoziLu Women’s Mud Run 2013
    TBA 2 hour drive from Denver, Co, Denver, CO, United States
      Learn More
  • September 28, 2013
    Boulder Colorado Boulder Mud Race 2013
    Bohn Park, Lyons, CO, United States
      Learn More
  • September 21, 2013
    Denver Colorado MuckFest MS 2013
    Music Mountain Amphitheater, Larkspur, CO, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • September 21, 2013
    Denver Colorado 5K Foam Fest 2013
    May Farms, Byers, CO, United States
    Save $5 on your 5K Foam Fest with code DENVERFOAM Learn More
  • September 14, 2013
    Denver Colorado Dirty Girl Mud Run 2013
    CORE Offroad Park, Agate, CO, United States
    Save 10% on your Dirty Girl Mud Run with code MRG10 Learn More
  • August 25, 2013
    Colorado Springs Colorado Scavenger Dash 2013
    Jack Quinn Irish Alehouse and Pub, Colorado Springs, CO, United States
      Learn More
  • August 24, 2013
    Denver Colorado Thunder Challenge 2013
    TBA Central City, Central City, CO, United States
      Learn More
  • August 24, 2013
    Denver Colorado Scavenger Dash 2013
    Blake Street Tavern, Denver, CO, United States
      Learn More
  • August 24, 2013
    Colorado Springs Colorado The Dirty Dash 2013
    Pikes Peak International Raceway, Fountain, CO, United States
    Save $5 on your The Dirty Dash with code MRG2020 Learn More
  • August 17, 2013
    Colorado Warrior Dash 2013
    Copper Mountain Ski Resort, Copper Mountain, CO, United States
    Save $5 on your Warrior Dash with code MRGWD719 Learn More
  • August 10, 2013
    Boulder Colorado Muddy Buddy 2013
    Boulder Reservoir, Boulder, CO, United States
      Learn More
  • August 03, 2013
    Colorado Springs Colorado Big Dog Brag 2013
    Ram Off-Road Park, Colorado Springs, CO, United States
    Save $5 on your Big Dog Brag with code MRG5 Learn More
  • July 27, 2013
    Denver Kiss Me Dirty 2013
    The Colorado Horse Park, Parker, CO, United States
    Save $5 on your Kiss Me Dirty with code MRG Learn More
  • June 29, 2013
    Denver Colorado Zombie Run For Your Lives 2013
    May Farms, Byers, CO, United States
    Save $5 on your Run For Your Lives with code RFYL13 Learn More
  • June 22, 2013
    Steamboat Springs Colorado Steamboat Mad Mud Run 2013
    Steamboat Ski Resort, Steamboat Springs, CO, United States
    Save $5 on your Steamboat Mad Mud Run with code MUDRUNGUIDE5 Learn More
  • June 16, 2013
    Denver Colorado The Dirty Dash 2013
    The Botanic Gardens at Chatfield, Littleton, CO, United States
    Save $5 on your The Dirty Dash with code MRG2020 Learn More
  • June 15, 2013
    Colorado Tough Mudder 2013
    Beaver Creek Resort, Avon, CO, United States
      Learn More
  • June 01, 2013
    Colorado Insantity Run 2013
    Music Mountain Amphitheater, Larkspur, CO, United States
      Learn More
  • June 01, 2013
    Pueblo Colorado Big Dog Brag 2013
    CSU-Pueblo ThunderBowl Football Stadium, Pueblo, CO, United States
    Save $5 on your Big Dog Brag with code MRG5 Learn More
  • May 25, 2013
    Denver Colorado Muddy Mama 2013
    The Colorado Horse Park, Parker, CO, United States
      Learn More
  • May 11, 2013
    Colorado Rugged Maniac 2013
    Thunder Valley Motocross, Lakewood, CO, United States
    Save $5 on your Rugged Maniac with code MRG21 Learn More
  • May 04, 2013
    Boulder Colorado Shape Diva Dash 2013
    Boulder Reservoir, Boulder, CO, United States
      Learn More
  • May 04, 2013
    Colorado Spartan Race Spartan Military Sprint 2013
    Fort Carson Army Base, Fort Carson, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More
  • April 13, 2013
    Colorado Springs Colorado Dirty Girl Mud Run 2013
    Ram Off-Road Park, Colorado Springs, CO, United States
    Save 10% on your Dirty Girl Mud Run with code MRG10 Learn More
  • September 22, 2012
    Colorado Dirty Girl Mud Run 2012
    May Farms, Byers, CO, United States
    Save 10% on your Dirty Girl Mud Run with code MRG10 Learn More
  • August 18, 2012
    Colorado Warrior Dash 2012
    Copper Mountain Ski Resort, Copper Mountain, CO, United States
    Save $5 on your Warrior Dash with code MRGWD719 Learn More
  • August 12, 2012
    Colorado Muddy Buddy 2012
    Boulder Reservoir, Boulder, CO, United States
      Learn More
  • August 04, 2012
    Colorado MuckRuckus MS 2012
    Grand Park, Fraser, CO, United States
    Save $5 on your MuckFest with code MUDRUNGUIDE Learn More
  • July 14, 2012
    Colorado Run For Your Lives 2012
    Thunder Valley Motocross, Lakewood, CO, United States
    Save $5 on your Run For Your Lives with code RFYL13 Learn More
  • June 09, 2012
    Colorado Tough Mudder 2012
    Beaver Creek Resort, Avon, CO, United States
      Learn More
  • May 12, 2012
    Colorado LoziLu Women’s Mud Run 2012
    Kiowa Creek Paintball, Bennett, CO, United States
      Learn More
  • May 05, 2012
    Colorado Spartan Race Spartan Military Sprint 2012
    Fort Carson Army Base, Fort Carson, CO, United States
    Save 10% on your Spartan Race with code MRG10 Learn More

Browse our list of upcoming mud runs, mud races & obstalce races for Colorado (CO)

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