2017 - 2018 North America X-hour race Calendar in August

Browse our Calendar for X-hour races (races where the duration is fixed) organized in North America during the month of August among 19 races.

19 races

Silverton 1000 Multiday Run

August 12, 2016 The race has already taken place.
USA / Mountain Region / Colorado / Silverton
X-hour race

Silverton 1000 Multiday Run

August 12, 2016 The race has already taken place.
USA / Mountain Region / Colorado / Silverton
X-hour race

Silverton 1000 Multiday Run

August 12, 2016 The race has already taken place.
USA / Mountain Region / Colorado / Silverton
X-hour race

DURTY B-EE-RR-UN 6hr St. Pete Fat Ass

August 13, 2016 The race has already taken place.
USA / South Atlantic / Florida / St. Petersburg
X-hour race

Silverton 1000 Multiday Run

August 13, 2016 The race has already taken place.
USA / Mountain Region / Colorado / Silverton
X-hour race

Tick Tock Ultra & Team Relay NC

No race in 2017
USA / South Atlantic / North Carolina / Pinehurst
X-hour race
Relay

Tick Tock Ultra & Team Relay NC

No race in 2017
USA / South Atlantic / North Carolina / Pinehurst
X-hour race

Parsippany 12 Hour

August 21, 2016 The race has already taken place.
USA / Mid-Atlantic / New Jersey / Veteran's Park, Parsippany
X-hour race
NJ Trail Series

RUN 24 Holly

August 04, 2017 The race has already taken place.
USA / East North Central / Michigan / Holly
X-hour race

Run 24

August 04, 2017 The race has already taken place.
USA / East North Central / Michigan / McGinnis Road
X-hour race
Team Relay

24-Hour Run For Dreams

August 05, 2017 The race has already taken place.
USA / East South Central / Kentucky / Shelbyville
X-hour race
Charity

Mosquito Hill Endurance Runs

August 05, 2017 The race has already taken place.
USA / East North Central / Wisconsin / New London
X-hour race
Trail
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