US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,366 races

Chicago Lakefront 50K George Cheung Memorial Race

2018-04-14 - 07:30
North America / USA / East North Central / Illinois / Chicago
Ultramarathon
Road Running Flat Solo

Chicago Lakefront 50/50

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

Frozen Gnome

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

Clinton Lake Ultra

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

Farmdale Trail Runs

50 Mile
2018-10-06 - 05:00
North America / USA / East North Central / Illinois / East Peoria
Ultramarathon
Trail Running Solo

Farmdale Trail Runs

100 Mile
2018-10-06 - 05:00
North America / USA / East North Central / Illinois / East Peoria
Ultramarathon
Trail Running Solo

Farmdale Trail Runs

30 Mile
2018-10-06 - 07:00
North America / USA / East North Central / Illinois / East Peoria
Ultramarathon
Trail Running Solo

Evergreen Lake Ultras

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

Evergreen Lake Ultras

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

DPR Trail Races

Des Plaines River Tail 50 Miles
2017-10-14 - 06:00
North America / USA / East North Central / Illinois / Lake County Forest Preserve
Ultramarathon
Trail Running Flat

Arctic Frog

50K
2018-12-01 - 08:00
North America / USA / East North Central / Illinois / Libertyville
Ultramarathon
Running

Super Awesome! Illinois Edition

50K
2018-04-08 - 07:00
North America / USA / East North Central / Illinois / Metropolis
Ultramarathon
Running
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