Morristown, TN, United States · Saturday, September 19, 2026

Timed 12 hours

The Dirt Circuit - 12 Hour Endurance Trail Runs

3 days to go
not publishedn/a Distance
not publishedn/a Climbing
not publishedn/a Grit

We hold no course length for this race — a timed or backyard event is measured by the clock, not the kilometre — so there is no Grit score to give you.

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36.2140° N, 83.2949° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Field size ~28 Small. Long stretches with nobody in sight.

DUV results for the 2025 edition (12h) — ranked runners only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, September

Daytime high 27°C
Night low 14°C
Rainfall Showers likely
Daylight 12 h 19 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 590 m. Not a forecast.

The Aid Station

Course-specific beta from the community

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for this trail race.

Salomon

Ultra Glide 4

$159.95 ★★★★★ 4.6

Adidas

Terrex Agravic Speed Ultra

★★★★★ 4.5

Tailwind

Endurance Fuel

All-in-one calorie and electrolyte drink mix. 200 calories per serving.

$25 ★★★★★ 4.8

Salomon

ADV Skin 12

Industry-standard 12L race vest with front flask pockets and minimal bounce.

$180 ★★★★★ 4.8

Nitecore

UT32

Dual-beam trail running headlamp (1100 lumens) with spot and flood beams.

$100 ★★★★★ 4.5

COROS

APEX 2 Pro

GPS running watch with 75-hour GPS battery, topo maps, and training metrics.

$500 ★★★★★ 4.7
All gear guides →

Course Notes

Panther Creek State Park. The Dirt Circuit is 3 miles of trail mostly resembling that of a cross country course. The loop course is a combination of wide and single track trails through fields and woods with two wooden bridge crossings.

Similar races

Other trail ultras of the same format.