2017 - 2018 USA X-hour race Calendar

Browse our Calendar for X-hour races (races where the duration is fixed) organized in USA among 320 races.

320 races

Painful Elimination

August 26, 2017 Race day in 3 days
USA / East North Central / Illinois / Hudson
X-hour race
Trail

4th Annual POW-MIA Relay

September 02, 2017 Race day in 10 days
USA / East South Central / Tennessee / Knoxville
X-hour race
Charity Relay

Badgerland 24, 12 & 6 Hour Run

September 02, 2017 Race day in 10 days
USA / East North Central / Wisconsin / Germantown
X-hour race
Badgerland Striders

Badgerland 24, 12 & 6 Hour Run

September 02, 2017 Race day in 10 days
USA / East North Central / Wisconsin / Germantown
X-hour race
Badgerland Striders Night

Badgerland 24, 12 & 6 Hour Run

September 02, 2017 Race day in 10 days
USA / East North Central / Wisconsin / Germantown
X-hour race
Badgerland Striders

Badgerland 24, 12 & 6 Hour Run

September 02, 2017 Race day in 10 days
USA / East North Central / Wisconsin / Germantown
X-hour race
Badgerland Striders

Badgerland 24, 12 & 6 Hour Run

September 02, 2017 Race day in 10 days
USA / East North Central / Wisconsin / Germantown
X-hour race
Badgerland Striders Night

Olander Relay — Dave's 24 Hour Endurance Challenge

September 03, 2017 Race day in 11 days
USA / East North Central / Ohio / Sylvania Township
X-hour race
Flat

American Heroes Run

September 09, 2017 Race day in 17 days
USA / Mountain Region / Colorado / Longmont
X-hour race
Flat Trail

12-Hour Adventure Trail Run

September 16, 2017 Race day in 24 days
USA / South Atlantic / Virginia / Triangle
X-hour race
Trail

Athletic Equation Mini Ultra Trail Series

September 16, 2017 Race day in 24 days
USA / South Atlantic / Virginia / Triangle
X-hour race
Trail

Chautauqua Ultras

September 16, 2017 Race day in 24 days
USA / Mid-Atlantic / New York / Mayville
X-hour race