2017 - 2018 North America Ultramarathon Calendar

Browse our Ultramarathon Calendar for races organized in North America among 1494 races.

1,494 races

Run LOVit

LOVit 100 Mile
February 24, 2017 Race day in 5 days
USA / West South Central / Arkansas / Hot Springs
Ultramarathon - 100 miles
Trail

The Dunes 100

100 Miler
February 25, 2017 Race day in 6 days
USA / South Atlantic / Florida / Jupiter
Ultramarathon - 100 miles
Trail

The Dunes 100

100 Mile Team Relay
February 25, 2017 Race day in 6 days
USA / South Atlantic / Florida / Jupiter
Ultramarathon - 100 miles
Trail Relay

The Dunes 100

50 Miler
February 25, 2017 Race day in 6 days
USA / South Atlantic / Florida / Jupiter
Ultramarathon - 50 miles
Trail

Chena River to Ridge Endurance Race

Chena River to Ridge Endurance Race 45 Mile
February 25, 2017 Race day in 6 days
USA / Pacific / Alaska / Fairbanks
Ultramarathon - 45 miles
Trail Snow

Hashawha Hills 50 km Trail Run

February 25, 2017 Race day in 6 days
USA / South Atlantic / Maryland / Westminster
Ultramarathon - 50 kilometers
Trail

Run LOVit

LOVit 100k
February 25, 2017 Race day in 6 days
USA / West South Central / Arkansas / Hot Springs
Ultramarathon - 100 kilometers
Trail

Mount Cheaha 50K

February 25, 2017 Race day in 6 days
USA / East South Central / Alabama / Delta
Ultramarathon - 50 kilometers
Trail Pinhoti Trail Series

Black Mountain Marathon

Mount Mitchell Challenge
February 25, 2017 Race day in 6 days
USA / South Atlantic / North Carolina / Black Mountain
Ultramarathon - 40 miles
Trail

Orange Curtain

Orange Curtain 100K
February 25, 2017 Race day in 6 days
USA / Pacific / California / Liberty Park, Cerritos
Ultramarathon - 100 kilometers
Road Running

Orange Curtain

Orange Curtain 50K Afternoon
February 25, 2017 Race day in 6 days
USA / Pacific / California / Liberty Park, Cerritos
Ultramarathon - 50 kilometers
Road Running

Orange Curtain

Orange Curtain 50K Morning
February 25, 2017 Race day in 6 days
USA / Pacific / California / Liberty Park, Cerritos
Ultramarathon - 50 kilometers
Road Running

Orcas Island 100

February 25, 2017 Race day in 6 days
USA / Pacific / Washington / Orcas Island
Ultramarathon - 100 miles
Trail Mountain

Psycho Wyco Run Toto Run

Psycho Wyco Run Toto Run 50K
February 25, 2017 Race day in 6 days
USA / West North Central / Kansas / Kansas City
Ultramarathon - 50 kilometers
Hilly Trail

Salmon Falls 50K

February 25, 2017 Race day in 6 days
USA / Pacific / California / Pilot Hill
Ultramarathon - 50 kilometers
Trail