City of Trees Marathon
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Event Details
The City of Trees Marathon takes place on Saturday, October 10, 2026, in Boise, Idaho.
Distances
The event includes four race distances:
- Marathon
- Half Marathon
- 10k
- 5k
Participant Information
All participants receive a finisher's award, finisher food and drink, and swag from sponsors. A long sleeve t-shirt is included, but registrants who sign up after October 1, 2026, are not guaranteed to receive one.
Course Information
The courses utilize the Boise Greenbelt system. The organizing entities note that the river can be unpredictable, and typical issues can include sidewalk construction, sinkholes, or flooding. Runners may also encounter wildlife on the route. Visit the organization's website for the most recent information.
