January ultramarathons in Tennessee, United States

Rugged forested loops on Whitwell Mountain with 1000 feet of elevation gain per circuit, diverse terrain, bluffs, waterfalls, and scenic vistas

Flat looped course on tracks, gravel, and grass at Camp Jordan Park, hourly starts, last-runner-standing format, part of the backyard ultra circuit

Single-track course through Pioneer Springs, Woodland, and Chickasaw Bluff Trails with approximately 3000 feet of elevation gain and varied terrain

Rugged 5-mile trail loop at Hardin Farm, with about 1,000 feet of climbing per lap on repeatedly hilly terrain.