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3 events in Saint Louis County, Missouri

From big races to Saturday morning group runs—find trail running events and connect with the local endurance sports community.

3 events
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Saint Louis County

3 events in Saint Louis County
  • Sat, Feb 21, 2026 at 10:00 AM

    The 2026 Castlewood Cup returns to Castlewood State Park. Join us for some of the most beautiful scenery and well maintained single track in Missouri! A perfect combination of hills, switchbacks, and (some!) flat terrain await you. Break up the winter monotony and get back into the woods!

    5k15kTrail via RunSignup
  • Sun, Apr 19, 2026 at 7:30 AM

    Have you considered getting into trail running or hiking, but didn’t know where to start, or were apprehensive about venturing out onto the trails alone? Big River Unpaved is a FREE, fun, friendly, and first-class training program for runners and walkers of all abilities. This program is geared for people new to hiking or trail running, looking for a fun, social, and supportive atmosphere in which to venture out into the outdoors. Our trail excursions will be supported by guides who will help you “stay found” and share knowledge about trail etiquette and technique. Our trail excursions will help make hitting the trails more comfortable and accessible by providing comradery and education in a fun, social, and supportive atmosphere.

    This program is FREE! So get ready to lace up your trail shoes and get outside!

    Details:

    • Weekly trail excursions on Sunday mornings at various locations throughout the St. Louis metro area. (Some of these trails will be a 30+ minute drive from the city and mid-county. The location schedule will be shared with registered participants.) The spring season also includes Thursday evening trail outings.

    • Weekly email newsletter to keep you informed

    • Beginner-friendly

    • Experienced Trail Guides to share motivation and advice (and help you “stay found”)

    • Age requirements - For safety reasons we can't accommodate unaccompanied minors. Those under 18 must be accompanied by (running/hiking with) their guardian for the duration of any trail excursion

    • Hiking Pace - Our Hike Guides will generally maintain a pace faster than 2.5mph or 24:00/mile. Participants desiring to hike slower are welcome to attend but may be hiking without Guide support.

    • Ruckers welcome!

    For more information, visit https://www.bigriverrunning.com/run/unpaved/

    See full details
    RunTrailWalk via RunSignup
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