City of Trees Marathon
- Date Sat 11th October 2025
- Time 8:00AM MDT
- Location Boise, Idaho
- Price $38.53 - $91.43
- Races 4 races
- Distances Marathon, Half Marathon, 10km, 5km
Last chance to enter
Race day is fast approaching
Event summary
Join us for the vibrant City of Trees Marathon on Saturday, October 11, 2025, in the scenic city of Boise, Ada. This exciting event invites runners of all levels to take on the beautiful courses that wind through the picturesque Boise Greenbelt system. Participants will enjoy a fantastic atmosphere, with great swag including a cozy long sleeve t-shirt, and delicious finisher food and drinks waiting at the finish line. Don’t miss out on the chance to earn a finisher's award that celebrates your achievement!
As you traverse the course, be prepared for the unexpected! The Greenbelt offers a unique running experience where nature and wildlife are part of the adventure, and the stunning riverside views will keep you motivated. Remember, to ensure you receive your event t-shirt, be sure to register before October 2, 2025. Whether you're aiming for a personal best or simply enjoying the camaraderie of fellow runners, the City of Trees Marathon promises an unforgettable day filled with energy and excitement!
As you traverse the course, be prepared for the unexpected! The Greenbelt offers a unique running experience where nature and wildlife are part of the adventure, and the stunning riverside views will keep you motivated. Remember, to ensure you receive your event t-shirt, be sure to register before October 2, 2025. Whether you're aiming for a personal best or simply enjoying the camaraderie of fellow runners, the City of Trees Marathon promises an unforgettable day filled with energy and excitement!
Organiser's Description
SATURDAY, OCTOBER 11, 2025
Check for Course Maps under the "Event Info" tab above in the menu.
GREAT SWAG AND T-SHIRT DEADLINE
Comfiest long sleeve t-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.
Check for Course Maps under the "Event Info" tab above in the menu.
GREAT SWAG AND T-SHIRT DEADLINE
Comfiest long sleeve t-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.
Races
-
Marathon
Incl. $6.43 Fee & T-Shirt
Sat 11th October 2025 (8:00AM MDT)
$91.43
-
Half Marathon
Incl. $4.69 Fee & T-Shirt
Sat 11th October 2025 (8:30AM MDT)
$59.69
-
10k
Incl. $4.11 Fee & T-Shirt
Sat 11th October 2025 (9:00AM MDT)
$49.11
-
5k
Incl. $3.53 Fee & T-Shirt
Sat 11th October 2025 (9:00AM MDT)
$38.53
Reviews
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733 S Pioneer Street, Boise, 83702, ID, United States
City of Trees Marathon
