US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,430 races

Farmdale Trail Runs

October 07, 2017 Race day in 16 days
USA / East North Central / Illinois / East Peoria
Ultramarathon
Trail

Potawatomi Trail Runs

April 08, 2016 The race has already taken place.
USA / East North Central / Illinois / Pekin
Ultramarathon
Hilly Trail

Potawatomi Trail Runs

April 08, 2016 The race has already taken place.
USA / East North Central / Illinois / Pekin
Ultramarathon
Hilly Trail

The Hennepin Hundred

October 01, 2016 The race has already taken place.
USA / East North Central / Illinois / Sterling
Ultramarathon

The Hennepin Hundred

October 01, 2016 The race has already taken place.
USA / East North Central / Illinois / Sterling
Ultramarathon
Relay

The Hennepin Hundred

October 01, 2016 The race has already taken place.
USA / East North Central / Illinois / Sterling
Ultramarathon

Arctic Frog

December 03, 2016 The race has already taken place.
USA / East North Central / Illinois / Libertyville
Ultramarathon

Farmdale Trail Runs

October 07, 2017 Race day in 16 days
USA / East North Central / Illinois / East Peoria
Ultramarathon
Trail

Farmdale Trail Runs

October 07, 2017 Race day in 16 days
USA / East North Central / Illinois / East Peoria
Ultramarathon
Trail

Rock Cut Hobo Trail Runs

September 09, 2016 The race has already taken place.
USA / East North Central / Illinois / Rockford
Ultramarathon
Trail

Potawatomi Trail Runs

April 07, 2017 The race has already taken place.
USA / East North Central / Illinois / Pekin
Ultramarathon
Hilly Trail

Chicago Lakefront 50K George Cheung Memorial Race

April 08, 2017 The race has already taken place.
USA / East North Central / Illinois / Chicago
Ultramarathon