2017 - 2018 USA Ultramarathon Calendar in September

Browse our Ultramarathon Calendar for races organized in USA during the month of September among 155 races.

155 races

Iron Mountain Trail Runs

Iron Mountain 30 mile Trail Run
September 02, 2017 Race day in 4 months
USA / South Atlantic / Virginia / Damascus
Ultramarathon - 30 miles
Trail

Iron Mountain Trail Runs

Iron Mountain 50 mile Trail Run
September 02, 2017 Race day in 4 months
USA / South Atlantic / Virginia / Damascus
Ultramarathon - 50 miles
Trail

Last Man Standing Ultramarathon

September 02, 2017 Race day in 4 months
USA / New England / Maine / New Gloucester
Ultramarathon - 100 miles
Trail

Tantalus Triple Trek

September 02, 2017 Race day in 4 months
USA / Pacific / Hawaii / O'ahu
Ultramarathon - 30 miles
Trail

The Pinellas Trail Challenge

September 02, 2017 Race day in 4 months
USA / South Atlantic / Florida / St. Petersburg
Ultramarathon - 46 miles
Flat Urban Trail

The Ring - Massanutten Trail Circuit Run

September 02, 2017 Race day in 4 months
USA / South Atlantic / Virginia / Front Royal
Ultramarathon - 71 miles
Trail

Rock Run Nantucket

September 02, 2017 Race day in 4 months
USA / New England / Massachusetts / Nantucket
Ultramarathon - 50 miles
Relay

Lake Michigan Trail Marathon

Lake Michigan Trail 50K
September 03, 2017 Race day in 4 months
USA / East North Central / Wisconsin / Milwaukee County Parks
Ultramarathon - 50 kilometers
Charity Trail

The Rut

The Rut 50K
September 03, 2017 Race day in 4 months
USA / Mountain Region / Montana / Big Sky
Ultramarathon - 50 kilometers
UTMB Qualifier Trail Mountain

Woodstock Festival of Races

Hallucination 100 Mile
September 08, 2017 Race day in 4 months
USA / East North Central / Michigan / Pinckney
Ultramarathon - 100 miles
Hilly Trail Midwest Grand Slam of Ultrarunning Western States Qualifier

Woodstock Festival of Races

LSD 100K
September 08, 2017 Race day in 4 months
USA / East North Central / Michigan / Pinckney
Ultramarathon - 100 kilometers
Hilly Trail Midwest Grand Slam of Ultrarunning

Pumpkinhead Trail Relay

Standard Relay Team (5-8 Person)
September 08, 2017 Race day in 4 months
USA / New England / Maine / New Gloucester
Ultramarathon - 128 miles
Trail Relay

Fall Superior Trail Races

Superior Sawtooth 100 Mile
September 08, 2017 Race day in 4 months
USA / West North Central / Minnesota / Lutsen
Ultramarathon - 100 miles
UTMB Qualifier Trail

Pumpkinhead Trail Relay

Ultra Relay Team (4 Person)
September 08, 2017 Race day in 4 months
USA / New England / Maine / New Gloucester
Ultramarathon - 128 miles
Trail Relay

Wasatch Front 100 Mile Endurance Run

September 08, 2017 Race day in 4 months
USA / Mountain Region / Utah / Layton
Ultramarathon - 100 miles
UTMB Qualifier Trail Western States Qualifier