US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,581 races

Chicago Lakefront 50/50

Chicago Lakefront 50K
04/14/2018 - 08:30
North America / USA / East North Central / Illinois / Chicago
Ultramarathon
Road Running

Reebok Ragnar Chicago

05/18/2018 - 05:00
North America / USA / East North Central / Illinois / Chicago
Ultramarathon
Running

Chicago Lakefront 50/50

Chicago Lakefront 50K
10/28/2017 - 08:30
North America / USA / East North Central / Illinois / Chicago
Ultramarathon
Road Running

Chicago Lakefront 50K George Cheung Memorial Race

04/08/2017 - 08:30
North America / USA / East North Central / Illinois / Chicago
Ultramarathon
Running

Frozen Gnome

50K
01/13/2018 - 07:45
North America / USA / East North Central / Illinois / Crystal Lake
Ultramarathon
Snow Forest Trail Running

Clinton Lake Ultra

03/25/2017 - 07:30
North America / USA / East North Central / Illinois / Dewitt
Ultramarathon
Running

Clinton Lake Ultra

03/24/2018 - 07:30
North America / USA / East North Central / Illinois / Dewitt
Ultramarathon
Trail Running Solo

Farmdale Trail Runs

30 Mile
10/07/2017 - 07:00
North America / USA / East North Central / Illinois / East Peoria
Ultramarathon
Trail Running

Farmdale Trail Runs

50 Mile
10/07/2017 - 05:00
North America / USA / East North Central / Illinois / East Peoria
Ultramarathon
Trail Running

Farmdale Trail Runs

100 Mile
10/07/2017 - 05:00
North America / USA / East North Central / Illinois / East Peoria
Ultramarathon
Trail Running

Evergreen Lake Ultras

Evergreen Lake Ultra and a Half
09/09/2017 - 05:00
North America / USA / East North Central / Illinois / Hudson
Ultramarathon
Trail Running

Evergreen Lake Ultras

Evergreen Lake Ultras
09/09/2017 - 07:00
North America / USA / East North Central / Illinois / Hudson
Ultramarathon
Trail Running
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