2018 - 2019 Colorado Race Calendar in August

Browse our Marathons, Half Marathons, Ultra marathons, Multiday events organized in Colorado during the month of August among 64 races.

64 races

Discrete Cirque Series - Arapahoe Basin, CO

2018-08-18 - 10:00
North America / USA / Mountain Region / Colorado / Keystone
10 km race to Half Marathon
Trail Running Mountain Solo

Pikes Peak Marathon

Pikes Peak Ascent
2018-08-18 - 07:00
North America / USA / Mountain Region / Colorado / Colorado Springs
Half Marathon
Snow Mountain Trail Running Mountain Solo

Pikes Peak Marathon

Pikes Peak Marathon
2018-08-19 - 07:00
North America / USA / Mountain Region / Colorado / Colorado Springs
Marathon
Mountain Trail Running Mountain Solo

Six Pack Summer Series Westminster- 5k & 10k

10k
2018-08-23 - 18:30
North America / USA / Mountain Region / Colorado / Westminser
10k race
Running

Six Pack Summer Series Westminster- 5k & 10k

5k
2018-08-23 - 18:30
North America / USA / Mountain Region / Colorado / Westminser
5k race
Running

All-Out Runapalooza 5K, 10K & Half Marathon

1Mile
2018-08-25
North America / USA / Mountain Region / Colorado / Apex Center, Arvada
Shorter than 10 km race
Running Solo

All-Out Runapalooza 5K, 10K & Half Marathon

Runapalooza Half Marathon
2018-08-25
North America / USA / Mountain Region / Colorado / Apex Center, Arvada
Half Marathon
Running Solo

All-Out Runapalooza 5K, 10K & Half Marathon

Runapalooza 10K
2018-08-25 - 09:30
North America / USA / Mountain Region / Colorado / Apex Center, Arvada
10k race
Running Solo

All-Out Runapalooza 5K, 10K & Half Marathon

Runapalooza 5K
2018-08-25
North America / USA / Mountain Region / Colorado / Apex Center, Arvada
5k race
Running Solo

Continental Divide Trail Run

16 Mi
2018-08-25 - 08:00
North America / USA / Mountain Region / Colorado / Steamboat Springs
Half Marathon to Full Marathon
Trail Running Solo

Continental Divide Trail Run

50K
2018-08-25 - 06:00
North America / USA / Mountain Region / Colorado / Steamboat Springs
Ultramarathon
Trail Running Solo

D'Evelyn DASH 5K/2K

2k Walk
2018-08-25 - 09:40
North America / USA / Mountain Region / Colorado / Denver
Shorter than 10 km race
Road Walking Solo
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