Idaho Running Day Marathon
2026 at a glance
- Race day
- Results posted
- Next race
- Oct 16, 2027 Saturday
- Distance
- 26.2 mi Marathon
- Latest results
- 2026
Quick facts
- Start and finish at Sandy Point
- Out and back on the Boise River Greenbelt
- Aid every 2 to 3 miles
- Prizes for the biggest run clubs
Course
The marathon heads west on the Greenbelt past rocky canyon walls and riverside cottonwoods, then follows the river back to finish at Sandy Point. In 2026 it turned at Esther Simplot Park. The course is certified, with aid every 2 to 3 miles.
Race-day weather
Mid-October in Boise usually means cool, dry mornings that warm up by midday along the river.
About the race
Boise Running Races puts on Idaho Running Day each October with a 5K, 10K, half and marathon, and run clubs turn out in force, with cash for the biggest groups. Finishers get a locally designed medal and a party with food trucks.
Dates and results by year
- 2027Saturday, Oct 16, 2027Upcoming
- 2026Saturday, Oct 17, 2026Results
Ran it in 2026?
Tell the next runner what it was like
FAQ
When is the Idaho Running Day Marathon?
The 2027 Idaho Running Day Marathon is on Saturday, October 16, 2027.
Where can I find the Idaho Running Day Marathon results?
The 2026 results and earlier years are on the results page.
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