City of Trees Marathon
- Date Sun 11th October 2026
- Time 8:00AM MDT
- Location Boise, Idaho
- Price $49.11 - $102.01
- Races 5 races
- Distances Marathon, Half Marathon, 10km, 5km
Event summary
Get ready for an unforgettable experience at the City of Trees Marathon on Sunday, October 11, 2026! This exciting event takes place in the stunning Boise area, where runners will traverse the beautiful Boise Greenbelt system. Participants can look forward to an exhilarating day filled with scenic views, the potential for wildlife encounters, and the chance to immerse themselves in the natural beauty of the region.
Runners will have the opportunity to choose from various race distances, making it perfect for everyone from seasoned marathoners to beginners. Plus, each participant will receive a stylish finisher's award and a participant t-shirt—just be sure to register by October 1, 2026, to guarantee your shirt! With the majestic landscape as your backdrop, the City of Trees Marathon promises to be an uplifting and memorable experience for all. Don't miss out on this chance to run through one of Idaho's most picturesque settings!
Runners will have the opportunity to choose from various race distances, making it perfect for everyone from seasoned marathoners to beginners. Plus, each participant will receive a stylish finisher's award and a participant t-shirt—just be sure to register by October 1, 2026, to guarantee your shirt! With the majestic landscape as your backdrop, the City of Trees Marathon promises to be an uplifting and memorable experience for all. Don't miss out on this chance to run through one of Idaho's most picturesque settings!
Organiser's Description
SUNDAY, OCTOBER 11, 2026
Course Maps will be updated once details have been finalized.
GREAT SWAG AND T-SHIRT DEADLINE
Participant T-shirt and 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
Participant T-shirt and 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. $7.01 Fee & T-Shirt
Sun 11th October 2026 (8:00AM MDT)
$102.01
-
Half Marathon
Incl. $6.43 Fee & T-Shirt
Sun 11th October 2026 (8:30AM MDT)
$91.43
-
10k
Incl. $5.27 Fee & T-Shirt
Sun 11th October 2026 (9:00AM MDT)
$70.27
-
5k
Incl. $4.69 Fee & T-Shirt
Sun 11th October 2026 (9:00AM MDT)
$59.69
-
Virtual - Any Distance!
Incl. $4.11 Fee & T-Shirt
$49.11
Proof of completion not required, but encouraged : )
Reviews
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1400 Bronco Ln, Boise, 83706, ID, United States
City of Trees Marathon
