Saturday, October 3rd, 2026
1400 Bronco Ln, Boise ID
Marathon · Half · 10K · 5K
44–67°F · low rain risk
See last 10 years
On this date: rain 1 of the last 10 years
2025
49–60°F
dry
2024
48–75°F
dry
2023
46–59°F
rain
2022
52–72°F
dry
2021
40–53°F
dry
2020
41–61°F
dry
2019
30–56°F
dry
2018
35–57°F
dry
2017
43–57°F
dry
2016
49–61°F
dry
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About this race
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 map
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