December ultramarathons in Tennessee, United States

1.1-mile loop with 340 feet of climbing per lap, steep ascents, runnable sections, and a field descent on double track logging road

Scenic 50k on Montgomery Bell’s diverse trail network, featuring rolling uphill and downhill segments through Tennessee State Park landscapes

4.3-mile trail loop repeated hourly, timed eliminations, dawn-to-night challenge featuring strategic pacing and night running

Timed ultra on Memphis’ Wolf River Trails, centered on a fast, flat 4-mile loop with an efficient, repeatable format for longer mileage.