Mud Factor - Saint Louis

Prepare to get gloriously grimy at Mud Factor - Saint Louis, hitting Brookdale Farms in Eureka, Missouri, on Saturday, June 6, 2026. This "Seriously Fun!" 5K mud and obstacle run is crafted for adventurers of all stripes, offering dedicated adult waves and engaging KIDZ family waves, making it an ideal outing for families seeking a memorable, muddy challenge together. The course promises an exhilarating blend of obstacles, including giant cargo climbs, thrilling water slides, extensive mud crawls, and imposing wall climbs, guaranteeing an action-packed journey through the terrain. With typical early June conditions bringing highs around 85°F and lows around 64°F, and a 16% chance of precipitation, runners can anticipate warm weather and perfectly softened ground to enhance every muddy stride.

The 5K route, often structured as a two-lap system for adult participants, ensures you'll experience a comprehensive array of obstacles and plenty of the signature thick, churned mud that Mud Factor is known for. Water aid stations are conveniently located at the 1.6 and 3.2-mile marks to help you stay hydrated, though participants are welcome to carry additional water. Beyond the course, a vibrant festival area awaits at Brookdale Farms, providing a lively atmosphere where runners and spectators can enjoy local food vendors and refreshing beverages. Post-race, take advantage of the wash-off station with running water and a $5 cash bag check to clean up after your muddy triumph. Remember to bring a change of clothes and a towel to fully embrace the "seriously fun" spirit of the day!