Idaho Running Day Half Marathon
2026 at a glance
- Race day
- Results posted
- Next race
- Oct 16, 2027 Saturday
- Distance
- 13.1 mi Half marathon
- Latest results
- 2026
Quick facts
- Certified half marathon course
- River and canyon views from the Greenbelt
- Finish line party with food trucks
- Park and ride shuttle option
Course
From the foot of Lucky Peak Dam, the half follows the Greenbelt west beside the Boise River and its canyon walls. In 2026 it turned at Parkcenter Boulevard and came back to Sandy Point. Aid comes 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
The half starts with the marathon at 8 a.m., an hour before the 10K and 5K, at Boise Running Races' fall celebration. Every finisher earns a medal designed by the race team and a spot at the finish line party.
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 Half Marathon?
The 2027 Idaho Running Day Half Marathon is on Saturday, October 16, 2027.
Where can I find the Idaho Running Day Half Marathon results?
The 2026 results and earlier years are on the results page.
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