Stillhouse 100K

APR
17
2027
100K out and back on the Cumberland Trail near Soddy Daisy TN with about 12,000 feet of climbing on technical singletrack and aid stations roughly every 10 miles.
Sat 17 Apr 2027
100 kilometers

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Stillhouse 100K

The Stillhouse 100K is an out-and-back on the Cumberland Trail singletrack near Soddy Daisy, Tennessee. The route follows the point-to-point Upchuck 50K course twice and includes long, technical climbs and descents into Soddy Creek, Possum Creek, and Rock Creek. The event lists roughly 12,000 feet of elevation gain across the course.

The course includes notable climb segments: a 4.3 mile climb gaining 658 feet from about mile 6.5 to mile 11, a 3.1 mile climb gaining 323 feet from about mile 19 to mile 22, and a 2.8 mile climb gaining 685 feet from about mile 33 to mile 36. Aid stations are positioned at roughly 10 mile intervals, and drop bags are allowed at all three aid stations.

Pacers are permitted from the turnaround at mile 31 and may be picked up at the Heiss Mountain Road aid station near mile 49; one pacer per runner is allowed at a time. Crew access is available at Heiss Mountain Road (outbound mile 18), Leggett Road (mile 31), and Heiss Mountain Road (inbound mile 49). The start and finish are listed at 190 Depot St, Soddy Daisy, TN. Awards are presented after the race and all finishers receive race swag.

The race organizer states the event is not open to beginner ultra runners and is aimed at seasoned ultra runners seeking a longer, more technical 100K. Visit the organization's website for the most recent information.

Events nearby

A wilderness single track 50K near Soddy Daisy with steep climbs, minimal aid, and an emphasis on experience and self-reliance.
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Trail races on December 13, 2026 in Chattanooga with 5Kish and 10Kish loop options on new Aetna Mountain trails, an aid station, post-race pancakes, and family amenities.
A mid-winter 25K on Raccoon Mountain near Chattanooga with varied singletrack, notable climbs, and a clockwise course for 2027.
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