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City of Trees Marathon

Sat October 11, 2025 Boise, ID 83702 US Directions

Events

Marathon

$95 Price increases after March 30, 2025 at 11:59pm MDT

Half Marathon

$75 Price increases after March 30, 2025 at 11:59pm MDT

10k

$65 Price increases after June 14, 2025 at 11:59pm MDT

5k

$45 Price increases after June 14, 2025 at 11:59pm MDT

Place

733 S Pioneer Street
Boise, ID US 83702

Description

Saturday, October 11, 2025
Check for Course Maps under the "Event Info" tab above in the menu.

GREAT SWAG and T-SHIRT DEADLINE
Coveted t-shirt hoodie shirt, swag thanks to our amazing sponsors, and finisher food/drink, all COT runners get a finisher's award. Please note that registrants registering after October 2, 2025 are not guaranteed a shirt.

Please note courses utilize the Boise Greenbelt system. Should we run the Greenbelt, the river can be unpredictable. Systems and entities that govern the local Greenbelt are constantly dealing with these challenges. Typical issues are created due to sidewalk construction, sinkholes, flooding, etc. During the run, you may encounter wildlife that may cause a delay in your progress and/or change in your planned route. Or you may cause your own delay to stop and listen to the amazing sounds this course creates. 

Race Contact Info

If you have any questions about this race, click the button below.

Primary Sponsors

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