Boise River Marathon
Decision scores
Six 0–100 scores telling you, at a glance, who this race is for.
Best for
About the Race
Experience the beauty of Boise like never before! The Boise River Marathon offers runners of all levels a unique course that winds along the stunning Boise River Greenbelt — a flat, fast, and scenic route perfect for setting personal records or enjoying a memorable first race. Whether you're running the full marathon, half marathon, 10K, or 5K, you'll be surrounded by the natural beauty of Idaho and the support of an energetic, encouraging community. This is more than just a race — it’s a cel...
Course Profile
Course profile data unavailable for this race.
Course features
Accessibility & inclusion
Vibe & community
History & past results
Past finisher times and year-over-year participation will appear here once the organizer publishes them.
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Common questions
How hard is the Boise River Marathon Marathon?
We don't have a verified elevation profile yet — check the organizer's course map for the climb breakdown.
What should I wear?
Dress for ~10°F warmer than the standing temperature once you start running. Throwaway long-sleeve at the start, gloves and a hat for sub-50°F mornings, singlet plus visor when it climbs above 60°F. The race-day forecast above is the source of truth closer to the date.
When does it sell out?
No published deadline. Most races raise the entry fee in tiers and can sell out without warning — sign up early if you're committed.
Similar races worth a look
- More like this in this city: All Marathon races in Eagle, ID
- Same distance, same month: Best Marathon races in May
- Same distance, statewide: All Marathon races in Idaho
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