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100 miClosed

Ozark Trail 100 Mile Endurance Run

Saturday, October 31, 2026Steelville, Missouriozarktrail100.com

Entry: $345
Aid stations: 13
Days to go: 9

Registration page ozarktrail100.com

At a glance

Date: Oct 31, 2026
Location: Steelville, Missouri
Distances: 100 mi
Elevation gain: 12,000 ft
Aid stations: 13, 5 with crew access
Registration: Closed Oct 4, 2026, via ultrasignup.com

Listed from UltraSignup. Checked Oct 19, 2026.

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13 aid stations are already loaded. Add cutoffs, pacing and the timeline your crew follows. Crew invites and race-day updates come with a Race Pass.

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About this race

The Ozark Trail 100 Mile Endurance Run is a point-to-point 101 mile ultramarathon on the Ozark Trail through the Mark Twain National Forest in south central Missouri. The race is mostly on single track trail with several water crossings and approximately 12,000 feet of elevation gain.

Key dates

Registration opens

Dec 24, 2025

Early Bird ends

Jun 30, 2026

Registration closes

Oct 4, 2026

Race day

Oct 31, 2026

Pricing

Current price

$345

After Jun 30

Price progression

After Jun 30

$345Jul 1, 2026

Early Bird

$295

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Registration openings and major changes, like a new date or a cancellation.

Aid stations

Station	Distance	Cutoff	Supplies
Grasshopper Hollow May be unmanned with limited aid	4.60 miles	--	waterHEED sports drinkvariety of food
Sutton Bluff RECOMMEND cutoff - not enforced but runners arriving after this time are unlikely to make the next hard cutoff time	14.00 miles	10:15 AM	waterHEED sports drinkvariety of food
Stillwell Hollow RECOMMEND cutoff - not enforced but runners arriving after this time are unlikely to make the next hard cutoff time	19.30 miles	11:30 AM	waterHEED sports drinkvariety of food
Johnson Hollow	24.60 miles	1:00 PM	waterHEED sports drinkvariety of food
Gunstock Hollow	31.30 miles	2:45 PM	waterHEED sports drinkvariety of food
Brooks Creek Pacers allowed starting from this aid station. No crew vehicles allowed to drive past the aid station.	40.00 miles	5:00 PM	waterHEED sports drinkvariety of food
Highway DD Requires a left turn off the main trail - MUST enter and have number recorded	47.20 miles	7:30 PM	waterHEED sports drinkvariety of foodsoup
Martin Road	55.80 miles	10:30 PM	waterHEED sports drinkvariety of foodsoup
Hazel Creek	65.40 miles	2:15 AM	waterHEED sports drinkvariety of foodsoup
Pigeon Roost Rd.	73.30 miles	4:45 AM	waterHEED sports drinkvariety of foodsoup
Berryman campground Requires a right turn off the main trail - MUST enter and have number recorded	78.60 miles	6:45 AM	waterHEED sports drinkvariety of foodsoup
Billy's Branch	87.10 miles	9:45 AM	waterHEED sports drinkvariety of food
Henpeck Hollow No crew vehicles allowed to drive past the aid station	94.40 miles	12:00 PM	waterHEED sports drinkvariety of food

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