Eureka Marathons Events

Harvest Moon 5k Night Run & Walk

Route 66 State Park 11 Oct 2025

DeClue Loops Trail Races (8M, 16M, Marathon, 50K)

Greensfelder Park Visitors Center Rd, Eureka, MO 63025, United States 11 Oct 2025

Boo's Be Kind - 1st Annual 5k Walk & Bags Tournament

Kircher Park - 25 Williams Rd. Eureka, MO 63025 25 Oct 2025

The Great GO! St. Louis Halloween Race - 5K, Fun Run and Great PUPkin Run

Kircher Park - Eureka, MO 18 Oct 2025

The Great GO! St. Louis Halloween Race - Half Marathon and 10K

Kircher Park - Eureka, MO 19 Oct 2025