Boulderthon races will take place on Saturday, October 8th and Sunday, October 9th 2022. The top-rated race series became the second largest marathon event in Colorado in only its first year of existence, and the largest full running event in Colorado.
Boulderthon draws runners from 48 states in the US as well as over a half dozen countries around the world, as the signature city marathon showcases Boulder’s beautiful downtown and spectacular views of the Flatirons.
Please review our impacts below.
Saturday Garage Access Map
Sunday Garage Access Map
Downtown Access Map
Saturday No Parking Map
Sunday No Parking Map
Interactive Course Map: Boulderthon Half Marathon, Marathon, 10k (Sunday, 10/9)
Interactive Course Map: Boulderthon 5k (Saturday, 10/8)
Save The Date
Download the Waze App to Avoid Road Impacts!
Download the free Waze App on your smartphone to help avoid road impacts on Race Weekend. Type Waze into your app store or visit Waze.com for more information.
No Parking Zones
Areas along the route will be marked as “No Parking Zones.” Please adhere to the dates and times posted; all zones will be enforced. Please reference our No Park Zones as well as our Weekend Road Impacts
Fore more information, please email firstname.lastname@example.org. Our most up to date impacts will be posted here. Information is updated as of August 1st 2022 and subject to change.