US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,602 races

Broken Toe 50k and 25K

50k Ultra
2018-10-20 - 08:00
North America / USA / East North Central / Ohio / Waynesville
Ultramarathon
Trail Running Solo

Cedar City Thunderbird 50K

50K
2018-10-20
North America / USA / Mountain Region / Utah / Cedar City
Ultramarathon
Trail Running Solo

Firewater 100K & 50K

50K Relay
2018-10-20
North America / USA / East South Central / Tennessee / Greenback
Ultramarathon
Trail Running Relay

Firewater 100K & 50K

100K
2018-10-20
North America / USA / East South Central / Tennessee / Greenback
Ultramarathon
Trail Running Solo

Firewater 100K & 50K

50K
2018-10-20
North America / USA / East South Central / Tennessee / Greenback
Ultramarathon
Trail Running Solo

Gate2Gate Trail Run

50K
2018-10-20
North America / USA / South Atlantic / Florida / Alachua
Ultramarathon
Trail Running Solo

GPP Gravel Grinder

50 Mile
2018-10-20 - 08:00
North America / USA / West South Central / Arkansas / Bentonville
Ultramarathon
Trail Running Solo

GPP Gravel Grinder

100 Mile
2018-10-20 - 08:00
North America / USA / West South Central / Arkansas / Bentonville
Ultramarathon
Trail Running Solo

Gulf to Gulf 80 Mile Relay

2018-10-20 - 06:00
North America / USA / South Atlantic / Florida / Naples
Ultramarathon
Running

Madder Marsh 50K GA

50K
2018-10-20
North America / USA / South Atlantic / Georgia / Richmond Hill
Ultramarathon
Trail Running Solo

Madder Marsh 50K GA

50K - 5 Person Relay
2018-10-20
North America / USA / South Atlantic / Georgia / Richmond Hill
Ultramarathon
Trail Running Relay

Paris Mountain 50 Mile Ultra/Relay

50 Mile Ultra
2018-10-20
North America / USA / South Atlantic / Virginia / Paris Mountain
Ultramarathon
Trail Running
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