2017 - 2018 North America X-hour race Calendar

Browse our Calendar for X-hour races (races where the duration is fixed) organized in North America among 335 races.

335 races

Self-Transcendence Ultra Classic 6 12 24 Hour Races & 6 Hour Relay - Ottawa

July 29, 2017 Race day in 3 days
Canada / Ontario / Ottawa
X-hour race
Indoor

Self-Transcendence Ultra Classic 6 12 24 Hour Races & 6 Hour Relay - Ottawa

July 29, 2017 Race day in 3 days
Canada / Ontario / Ottawa
X-hour race
Indoor

Self-Transcendence Ultra Classic 6 12 24 Hour Races & 6 Hour Relay - Ottawa

July 29, 2017 Race day in 3 days
Canada / Ontario / Ottawa
X-hour race
Indoor Relay

Angry Owl 12 Hour

July 30, 2017 Race day in 4 days
USA / Pacific / Oregon / Salem
X-hour race

Angry Owl 12 Hour

July 30, 2017 Race day in 4 days
USA / Pacific / Oregon / Salem
X-hour race

RUN 24 Holly

August 04, 2017 Race day in 9 days
USA / East North Central / Michigan / Holly
X-hour race

Run 24

August 04, 2017 Race day in 9 days
USA / East North Central / Michigan / McGinnis Road
X-hour race
Team Relay

24-Hour Run For Dreams

August 05, 2017 Race day in 10 days
USA / East South Central / Kentucky / Shelbyville
X-hour race
Charity

Mosquito Hill Endurance Runs

August 05, 2017 Race day in 10 days
USA / East North Central / Wisconsin / New London
X-hour race
Trail

A Journey Begins with One Step: A 12-hour Endurance Walk & Run

August 12, 2017 Race day in 17 days
USA / East North Central / Michigan / Bay City
X-hour race
Walk Charity

Sweltering Summer Ultra and Marathon

August 12, 2017 Race day in 17 days
USA / New England / Massachusetts / Pittsfield
X-hour race
Charity BURCS Race Series

Anchor Down Ultra

August 18, 2017 Race day in 23 days
USA / New England / Rhode Island / Bristol
X-hour race
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