2017 - 2018 USA X-hour race Calendar

Browse our Calendar for X-hour races (races where the duration is fixed) organized in USA among 299 races.

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299 races

24-Hour Adventure Trail Run

April 29, 2017 Race day in 2 days
USA / South Atlantic / Virginia / Triangle
X-hour race - 24 hours
Trail

Cottontail 6- & 12-Hour

Cottontail 12-Hour
April 29, 2017 Race day in 2 days
USA / Pacific / Washington / Carkeek Park, Seattle
X-hour race - 12 hours

Cottontail 6- & 12-Hour

Cottontail 6-Hour
April 29, 2017 Race day in 2 days
USA / Pacific / Washington / Carkeek Park, Seattle
X-hour race - 6 hours

Outrun 24 Hour Trail Race

April 29, 2017 Race day in 2 days
USA / East North Central / Ohio / Lake Metroparks Chapin Forest Reservation, Kirtland
X-hour race - 24 hours

Virginia 24 Hour Run/Walk for Cancer

April 29, 2017 Race day in 2 days
USA / South Atlantic / Virginia / Hampton
X-hour race - 24 hours
Charity Relay

Wolfpack Ninja Tour - Obstacle Course Race Alongside Star-Studded Ninjas

April 30, 2017 Race day in 3 days
USA / Mountain Region / Colorado / Denver
X-hour race - 2 hours
Obstacle race Fun Fund raising Kids

Beast for a Day

Beast for a Day - 12 Hrs
May 06, 2017 Race day in 9 days
USA / West South Central / Louisiana / St. Francisville
X-hour race - 12 hours

Beast for a Day

Beast for a Day - 6 Hrs
May 06, 2017 Race day in 9 days
USA / West South Central / Louisiana / St. Francisville
X-hour race - 6 hours

Farm Park Challenge

Farm Park 12 Hour Challenge
May 06, 2017 Race day in 9 days
USA / South Atlantic / Maryland / Derwood
X-hour race - 12 hours
Trail Relay

Farm Park Challenge

Farm Park 6 Hour Challenge
May 06, 2017 Race day in 9 days
USA / South Atlantic / Maryland / Derwood
X-hour race - 6 hours
Trail Relay

Run for Kids Challenge

Run for Kids 12 Hour Challenge Trail Race
May 06, 2017 Race day in 9 days
USA / East South Central / Alabama / Oak Mountain State Park, Pelham
X-hour race - 12 hours
Trail

Knock on Wood

24H Relay
May 12, 2017 Race day in 15 days
USA / South Atlantic / South Carolina / Greenville
X-hour race - 24 hours
Trail Relay

Go the Distance 24-Hour Team Relay Race and 5k Fun Run

Go the Distance 24-Hour Team Relay Race
May 12, 2017 Race day in 15 days
USA / Pacific / California / Loomis
X-hour race - 24 hours
Charity

VENARI Relay - 8HR Team Trail Event

May 13, 2017 Race day in 16 days
USA / East South Central / Kentucky / Nancy
X-hour race - 8 hours
Trail

Dawn to Dusk to Dawn Ultra

Dawn to Dusk to Dawn 12 Hour Ultra
May 13, 2017 Race day in 16 days
USA / Mid-Atlantic / Pennsylvania / Sharon Hill
X-hour race - 12 hours