2019 - 2020 August Races held in Colorado

Browse our Marathons, Half Marathons, Ultra marathons, Multiday events organized in in Colorado during the month of August among 83 races.

83 races

Sheep Mountain Endurance Run

50K
2019-08-03 - 06:00
North America / USA / Mountain Region / Colorado / Fairplay
Ultramarathon
Trail Running Solo

Sheep Mountain Endurance Run

51 Mile
2019-08-03 - 06:00
North America / USA / Mountain Region / Colorado / Fairplay
Ultramarathon
Trail Running Solo

Six Pack Summer Series Westminster- 5 mile & 5k

5k
2019-08-08 - 18:30
North America / USA / Mountain Region / Colorado / Westminster
5k race
Road Running Solo

Six Pack Summer Series Westminster- 5 mile & 5k

5 miles
2019-08-08 - 18:30
North America / USA / Mountain Region / Colorado / Westminster
Shorter than 10 km race
Road Running Solo

Aspen Backcountry Marathon

Half Marathon
2019-08-10 - 07:30
North America / USA / Mountain Region / Colorado / Aspen
10 km race to Half Marathon
Mountain Trail Running Mountain Solo

Aspen Backcountry Marathon

Marathon
2019-08-10 - 06:30
North America / USA / Mountain Region / Colorado / Aspen
Marathon
Mountain Trail Running Hilly Solo

Holy COW Trail Stampede

10k
2019-08-10 - 08:00
North America / USA / Mountain Region / Colorado / Westminster
10k race
Trail Running Solo

Holy COW Trail Stampede

5k
2019-08-10 - 08:00
North America / USA / Mountain Region / Colorado / Westminster
5k race
Trail Running Solo

Holy COW Trail Stampede

10 Miler
2019-08-10 - 06:30
North America / USA / Mountain Region / Colorado / Westminster
10 km race to Half Marathon
Trail Running Solo

Rugged Maniac - Denver

2019-08-10 - 09:00
North America / USA / Mountain Region / Colorado / Morrison
Unkwnon distance race
Trail Obstacle Race Solo

Leadville 10K

2019-08-11 - 13:00
North America / USA / Mountain Region / Colorado / Leadville
10k race
Trail Running Solo

Leadville Trail 100 Run

2019-08-17 - 04:00
North America / USA / Mountain Region / Colorado / Leadville
Ultramarathon
Mountain Western States Qualifier Trail Running Mountain Solo

Mt. Sneffels Marathon/Half

Half Marathon
2019-08-17 - 07:30
North America / USA / Mountain Region / Colorado / Ouray
Half Marathon
Road Running Solo

Mt. Sneffels Marathon/Half

Marathon
2019-08-17 - 06:30
North America / USA / Mountain Region / Colorado / Ouray
Marathon
Road Running Point to Point Solo

Six Pack Summer Series Westminster- 5k & 10k

5k
2019-08-22 - 18:30
North America / USA / Mountain Region / Colorado / Westminster
5k race
Road Running Solo
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