In 270 days · Sun, May 2, 2027
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Sunday, May 2nd, 2027
Treasure Valley, Boise ID
Marathon · Half · 10K · 5K
44–69°F · low rain risk
See last 10 years
On this date: rain 1 of the last 10 years
2026
47–80°F
dry
2025
47–79°F
dry
2024
41–55°F
dry
2023
49–82°F
dry
2022
43–67°F
rain
2021
47–64°F
dry
2020
45–78°F
dry
2019
42–66°F
dry
2018
38–67°F
dry
2017
45–62°F
dry
Best months to race in Idaho →
About this race
Event Overview
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.
Race Details
- Distances Available: Full marathon, half marathon, 10K, or 5K.
- Community Support: Surrounded by the natural beauty of Idaho and the support of an energetic, encouraging community.
- Celebration of Fitness: More than just a race — it’s a celebration of fitness, fun, and the spirit of Boise.
- Local Engagement: Participation helps support the heartbeat of our town through local vendors and community events.
Why Run the Boise River Marathon?
- Gorgeous Views: Enjoy breathtaking riverside views.
- Fast Course: Benefit from a flat, fast course.
- Family-Friendly: Experience a supportive atmosphere for all ages.
- Local Partnerships: Engage with local health and fitness organizations.
Finisher's Benefits
All participants will receive a finisher's medal, classic crew neck sweatshirt, swag, and finisher food/drink. Please note that registrants registering within 2 weeks of race date may not be guaranteed a shirt. We will do our best to accommodate everyone but recommend early registration to ensure shirt size availability.
Join Us
Join us for a race you’ll never forget. Run the River. Celebrate the Journey. Support Local.
Registration Link
To register, visit Boise River Marathon.
Course map
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