US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,417 races

Addison Oaks Challenge

May 14, 2017 The race has already taken place.
USA / East North Central / Michigan / Leonard
Ultramarathon

3 Days at the Fair

May 15, 2017 The race has already taken place.
USA / Mid-Atlantic / New Jersey / Sussex County Fairgrounds
Ultramarathon
NJ Trail Series

Born to Run Ultra Marathons

May 18, 2017 The race has already taken place.
USA / Pacific / California / Los Olivos
Ultramarathon
Trail All we do is run

Born to Run Ultra Marathons

May 19, 2017 The race has already taken place.
USA / Pacific / California / Los Olivos
Ultramarathon
Trail All we do is run

Cruel Jewel 100

May 19, 2017 The race has already taken place.
USA / South Atlantic / Georgia / Blue Ridge
Ultramarathon
Trail Daholonega Ultra Marathon Association Mountain UTMB Qualifier

Cruel Jewel 100

May 19, 2017 The race has already taken place.
USA / South Atlantic / Georgia / Blue Ridge
Ultramarathon
Trail Daholonega Ultra Marathon Association Mountain UTMB Qualifier

Knock on Wood

May 19, 2017 The race has already taken place.
USA / South Atlantic / South Carolina / Greenville
Ultramarathon
Trail

Adrenaline Night Run

May 20, 2017 The race has already taken place.
USA / Mountain Region / Arizona / McDowell Mountain Regional Park, Fountain Hills
Ultramarathon
Trail Aravaipa Running Night

Berryman Trail

May 20, 2017 The race has already taken place.
USA / West North Central / Missouri / Potosi
Ultramarathon
St Louis Ultrarunners Group (SLUG)

Born to Run Ultra Marathons

May 20, 2017 The race has already taken place.
USA / Pacific / California / Los Olivos
Ultramarathon
Trail All we do is run

Born to Run Ultra Marathons

May 20, 2017 The race has already taken place.
USA / Pacific / California / Los Olivos
Ultramarathon
Trail All we do is run

Cowboy Ultra

May 20, 2017 The race has already taken place.
USA / West North Central / Nebraska / Valentine
Ultramarathon
Trail