City of Trees Marathon
- Date Sun 11th October 2026
- Time 8:00AM MDT
- Location Boise, Idaho
- Price $38.53 - $70.27
- Races 5 races
- Distances Marathon, Half Marathon, 10km, 5km
Event summary
Get ready for an unforgettable experience at the City of Trees Marathon, taking place on Sunday, October 11, 2026, in the beautiful city of Boise, Ada. This vibrant event caters to runners of all levels, featuring a scenic course that showcases the stunning Boise Greenbelt system. Participants can look forward to great swag, including a comfy long sleeve t-shirt, as well as finisher food and drink to celebrate their accomplishments. Don't forget, all registered runners will receive a special finisher's award!
As you navigate the course, be prepared for the unique challenges and surprises that nature may present, from wildlife encounters to the picturesque sounds of the river. It's a perfect opportunity to embrace the great outdoors while enjoying the thrill of competition. Make sure to register before October 1, 2026, to guarantee your shirt and secure your spot in this fantastic marathon. Join us for a day of fun, fitness, and camaraderie in Boise!
As you navigate the course, be prepared for the unique challenges and surprises that nature may present, from wildlife encounters to the picturesque sounds of the river. It's a perfect opportunity to embrace the great outdoors while enjoying the thrill of competition. Make sure to register before October 1, 2026, to guarantee your shirt and secure your spot in this fantastic marathon. Join us for a day of fun, fitness, and camaraderie in Boise!
Organiser's Description
SUNDAY, OCTOBER 11, 2026
Course Maps will be updated once details have been finalized.
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 1, 2026 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.
Course Maps will be updated once details have been finalized.
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 1, 2026 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. $5.27 Fee & T-Shirt
Sun 11th October 2026 (8:00AM MDT)
$70.27
-
Half Marathon
Incl. $4.69 Fee & T-Shirt
Sun 11th October 2026 (8:30AM MDT)
$59.69
-
10k
Incl. $4.11 Fee & T-Shirt
Sun 11th October 2026 (9:00AM MDT)
$49.11
-
5k
Incl. $3.53 Fee & T-Shirt
Sun 11th October 2026 (9:00AM MDT)
$38.53
-
Virtual - Any Distance!
Incl. $4.11 Fee & T-Shirt
$49.11
Proof of completion not required, but encouraged : )
Reviews
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733 S Pioneer Street, Boise, 83702, ID, United States
City of Trees Marathon
