Ultra Trail Chattanooga by UTMB, live.

From the Tennessee River to the rim of Cloudland Canyon

A UTMB World Series event that starts at a riverside park in downtown Chattanooga and climbs straight onto the ridges above the city.

Ultra Trail Chattanooga by UTMB runs over the weekend of 4-6 June 2027. All three races start at Erlanger Park near downtown: the 100K at 06:00 and the 50K at 07:00 on Saturday 5 June, the 20K at 08:00 on Sunday 6 June. The organiser’s name for the route idea is River to Clouds: riverfront streets first, Appalachian ridgelines after.

The 50K and 20K are loops on Lookout Mountain: the Far Enough Trail, protected by the Lookout Mountain Conservancy, the Guild Trail, sandstone bluffs and the Chattanooga National Military Park, with the 50K reaching toward Covenant College and coming back through St. Elmo. The 100K is a one-way line: up to Covenant College, down the Moonshine Trails into the Lula Lake Land Trust past Lula Falls, through the Five Points and Durham Mine trail systems, and along the East and West Rim Trails of Cloudland Canyon State Park. Published ascent is 2,436 m for the 100K, 1,163 m for the 50K and 410 m for the 20K. Aid stations and cut-offs are still to come.

Forested singletrack under a hardwood canopy is the kind of ground where a phone’s position gets patchy, and the 100K finishes a long way from where it started. On Livebib the runner shares a link to their own broadcast. Family open it in a browser with no app or account and see the runner’s place on the course line, the distance covered and a finish estimate that updates as the day goes. When signal drops, the position is carried forward along the course and marked estimated rather than frozen. The runner decides who gets the link.