When is the City of Trees Marathon?

The City of Trees Marathon most recently ran on Saturday, October 3, 2026. A new date has not been announced yet — this page updates daily as the organiser posts one.

Where does the City of Trees Marathon start?

The City of Trees Marathon starts at 1400 Bronco Ln in Boise, ID.

What distances does the City of Trees Marathon offer?

The City of Trees Marathon offers Marathon, Half Marathon, 10K and 5K.

5K · 10K · Half Marathon · Marathon · Boise, ID

City of Trees Marathon

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…

Start line: 1400 Bronco Ln

This race has passed

The 2026 running was Saturday, October 3, 2026. No 2027 date is announced yet — this page updates daily as the organiser posts one.

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Past editions

City of Trees Marathon — ran Saturday, October 3, 2026

Train for it with a crew

A 5K is twelve weeks of Saturdays away, even from the couch. Run clubs in Boise →

Frequently asked

When is the City of Trees Marathon?: The City of Trees Marathon most recently ran on Saturday, October 3, 2026. A new date has not been announced yet — this page updates daily as the organiser posts one.
Where does the City of Trees Marathon start?: The City of Trees Marathon starts at 1400 Bronco Ln in Boise, ID.
What distances does the City of Trees Marathon offer?: The City of Trees Marathon offers Marathon, Half Marathon, 10K and 5K.

Listed on RunSignup. 1 past edition recorded. Race details are the organiser’s — confirm the date and start time with them before you travel.