Unpaved Evening Trail Outing

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. Location information for the trail excursions is shared with registered participants. Details and ...

Big River Summer Speedwork

Principia School 13201 Clayton Rd, Town and Country

Want to get faster? Join Big River for our FREE Summer Speedwork Sessions! These workouts are for anyone and everyone who wants to increase their speed for the 5k distance. It’s not just for “fast” runners! Join us on the track this summer. Learn more and sign-up HERE.