Big River Running Company is your resource for the most comprehensive race calendar in the region! Races marked with the Big River Race Management logo indicate the event is professionally timed and/or managed by Big River. Check back frequently as races are added on a regular basis. If you would like to have your race included in our race calendar, click here.
The Castlewood Cup is a true test of trail running stamina with a challenging 15k course in beautiful Castlewood State Park that includes uphill, downhill, switchbacks and creek crossing sections! All athletes receive an official Castlewood Cup hooded sweatshirt and the awards go three deep in each of the 5-year age groups. Like its autumnal cousin The Skippo, the post race party, on-course hydration and fuel stations make this event top-notch for trail enthusiasts and novices alike! Castlewood Cup has a participant cap and sells out each year, so when registration opens, be sure to sign up early!
If you have an independent race event you would like to add to our calendar, submit your event here.