US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,593 races

Croom Zoom

100M
01/06/2018 - 06:00
North America / USA / South Atlantic / Florida / Brooksville
Ultramarathon
Trail Running

Croom Zoom

50K
01/06/2018 - 06:00
North America / USA / South Atlantic / Florida / Brooksville
Ultramarathon
Trail Running

Frozen Sasquatch Trail

Frozen Sasquatch Trail 50k
01/06/2018 - 08:00
North America / USA / South Atlantic / West Virginia / Kanawha State Forest
Ultramarathon
Trail Running

Harbison 50K

50K
01/06/2018 - 07:30
North America / USA / South Atlantic / South Carolina / Columbia
Ultramarathon
Trail Running Solo

Hilo To Volcano 50k Ultra Marathon and Relay

50K Solo
01/06/2018 - 06:00
North America / USA / Pacific / Hawaii / Hilo
Ultramarathon
Road Running Mountain Solo

Hilo To Volcano 50k Ultra Marathon and Relay

50K Relay
01/06/2018
North America / USA / Pacific / Hawaii / Hilo
Ultramarathon
Road Running Relay

Salem Lake Shore Frosty Fifty

50K Relay
01/06/2018 - 08:00
North America / USA / South Atlantic / North Carolina / Winston-Salem
Ultramarathon
Seaside / Lakeside Running Relay

Salem Lake Shore Frosty Fifty

50K
01/06/2018
North America / USA / South Atlantic / North Carolina / Winston-Salem
Ultramarathon
Seaside / Lakeside Trail Running Solo

Salem Lakeshore Frosty Fifty 50k, 25k, and 50k Relay

Salem Lakeshore Frosty 50k Relay
01/06/2018 - 08:00
North America / USA / South Atlantic / North Carolina / Winston Salem
Ultramarathon
Trail Running

Salem Lakeshore Frosty Fifty 50k, 25k, and 50k Relay

Salem Lakeshore Frosty 50k
01/06/2018 - 08:00
North America / USA / South Atlantic / North Carolina / Winston Salem
Ultramarathon
Running

San Tan Scramble Trail Runs

50K
01/06/2018 - 07:00
North America / USA / Mountain Region / Arizona / Queen Creek
Ultramarathon
Trail Running

Watchung Winter Ultra and Trail Races

50K
01/06/2018 - 08:00
North America / USA / Mid-Atlantic / New Jersey / Mountainside
Ultramarathon
Trail Running
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