City of Trees Marathon

The City of Trees Half Marathon, first run in 2003 and now in its 23rd year, offers a scenic journey through Boise's popular Greenbelt system. This beloved event, which has seen recent fields of around 1400 finishers, draws participants from approximately 26 states, highlighting its appeal as a destination race.

The course is primarily run on the paved Boise Greenbelt, a system known for its natural beauty along the river. While typically flat with minimal elevation change, runners should be aware that the Greenbelt can present unpredictable conditions, including potential construction, flooding, or even wildlife encounters, which may necessitate route adjustments. These unique elements, however, also contribute to the memorable and engaging race experience.

Runners can expect a well-supported event with a T-shirt and finisher's award for all participants, along with post-race food and drink. While the repeat-runner loyalty stands at about 13%, the growing field trend suggests increasing popularity and a welcoming atmosphere for both new and returning runners.