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 324 races.

Refine by

324 races

Ultramarathon Saguenay-Lac-St-Jean

June 01, 2017 Race day in 3 days
Canada / Quebec / Saguenay
X-hour race - 36 hours
Charity Relay

Alaska Endurance Trail Run

12H
June 03, 2017 Race day in 5 days
USA / Pacific / Alaska / Fairbanks
X-hour race - 12 hours
Trail

Uwharrie 18

18 Hour 2 person
June 03, 2017 Race day in 5 days
USA / South Atlantic / North Carolina / Troy
X-hour race - 18 hours
Relay

Uwharrie 18

18 Hour 3 person
June 03, 2017 Race day in 5 days
USA / South Atlantic / North Carolina / Troy
X-hour race - 18 hours
Relay

Uwharrie 18

18 Hour 4 person
June 03, 2017 Race day in 5 days
USA / South Atlantic / North Carolina / Troy
X-hour race - 18 hours
Relay

Uwharrie 18

18 hour solo
June 03, 2017 Race day in 5 days
USA / South Atlantic / North Carolina / Troy
X-hour race - 18 hours

Alaska Endurance Trail Run

6H
June 03, 2017 Race day in 5 days
USA / Pacific / Alaska / Fairbanks
X-hour race - 6 hours
Trail

Sri Chinmoy Self-Transcendence 6-Hour Race

June 03, 2017 Race day in 5 days
Canada / Ontario / Kingston
X-hour race - 6 hours

Uwharrie 6 Hour AR

June 03, 2017 Race day in 5 days
USA / South Atlantic / North Carolina / Troy
X-hour race - 6 hours

FANS 12 & 24 Hour Runs

FANS 12 Hour Run
June 03, 2017 Race day in 5 days
USA / West North Central / Minnesota / Minneapolis
X-hour race - 12 hours
Walk

FANS 12 & 24 Hour Runs

FANS 24 Hour Run
June 03, 2017 Race day in 5 days
USA / West North Central / Minnesota / Minneapolis
X-hour race - 24 hours
Walk

FANS 12 & 24 Hour Runs

FANS 6 Hour Run
June 03, 2017 Race day in 5 days
USA / West North Central / Minnesota / Minneapolis
X-hour race - 6 hours
Walk

Run Under The Stars

Run Under The Stars 10H 2 person Relay
June 10, 2017 Race day in 12 days
USA / East South Central / Kentucky / Paducah
X-hour race - 10 hours
Relay

Run Under The Stars

Run Under The Stars 10H 4 person Relay
June 10, 2017 Race day in 12 days
USA / East South Central / Kentucky / Paducah
X-hour race - 10 hours

Run Under The Stars

Run Under The Stars 10H Solo
June 10, 2017 Race day in 12 days
USA / East South Central / Kentucky / Paducah
X-hour race - 10 hours