City of Trees Marathon
- Date Sat 10th October 2026
- Time 8:00AM MDT
- Location Boise, Idaho
- Price $38.53 - $70.27
- Races 4 races
- Distances Marathon, Half Marathon, 10km, 5km
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Event summary
Get ready for the City of Trees Marathon, taking place on Saturday, October 10, 2026, in the beautiful city of Boise, Ada! This exciting marathon promises an unforgettable experience as participants navigate the stunning Boise Greenbelt system, surrounded by nature's beauty. Runners can look forward to a variety of race distances, ensuring there’s something for everyone, from seasoned marathoners to casual joggers.
This year, participants will receive the comfiest long sleeve t-shirt, fantastic swag from generous sponsors, and delicious finisher food and drink to celebrate their accomplishments. Don’t miss out on the chance to earn a finisher's award, and be sure to register before October 1, 2026, to guarantee your shirt! As you run, keep your eyes peeled for local wildlife and embrace the serene sounds of nature. Join us for a day of fun, fitness, and community at the City of Trees Marathon!
This year, participants will receive the comfiest long sleeve t-shirt, fantastic swag from generous sponsors, and delicious finisher food and drink to celebrate their accomplishments. Don’t miss out on the chance to earn a finisher's award, and be sure to register before October 1, 2026, to guarantee your shirt! As you run, keep your eyes peeled for local wildlife and embrace the serene sounds of nature. Join us for a day of fun, fitness, and community at the City of Trees Marathon!
Organiser's Description
SATURDAY, OCTOBER 10, 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
Sat 10th October 2026 (8:00AM MDT)
$70.27
-
Half Marathon
Incl. $4.11 Fee & T-Shirt
Sat 10th October 2026 (8:30AM MDT)
$49.11
-
10k
Incl. $4.11 Fee & T-Shirt
Sat 10th October 2026 (9:00AM MDT)
$49.11
-
5k
Incl. $3.53 Fee & T-Shirt
Sat 10th October 2026 (9:00AM MDT)
$38.53
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733 S Pioneer Street, Boise, 83702, ID, United States
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City of Trees Marathon
