No Business 100

The No Business 100 is an annual ultra-marathon event held in Jamestown, Tennessee, featuring a challenging 100-mile loop course that showcases the stunning trails of the Big South Fork National River & Recreation Area. Participants will experience approximately 14,500 feet of ascent and descent as they traverse through both Tennessee and Kentucky. The race emphasizes scenic beauty and outdoor adventure, with a total cutoff time of 34 hours.

The 2025 edition will also serve as a qualifier for the prestigious Western States 100. Registration opens on February 1, 2025, inviting runners to join this unique and demanding journey. Visit the organization's website for the most recent information.