In its second annual edition, Boulderthon nearly tripled in size, drawing runners from all 50 states as well as 15 countries, as the signature city marathon showcases Boulder’s beautiful downtown and spectacular views of the Flatirons.
No parking garages will be closed during Boulderthon. All parking garages remain fully open for the community & staff.
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, 5k, Kids Run
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 email@example.com. Our most up to date impacts will be posted here. Information is updated as of August 1st 2022 and subject to change.