Boise River Marathon

MAY
2
2026
Run along the scenic Boise River Greenbelt in Eagle, Idaho on May 2, 2026 for a flat, fast course for all paces. Choose the marathon, half marathon, 10K or 5K and enjoy local vendors, a finisher medal and a classic crew neck sweatshirt.
Sat 2 May 2026
Marathon Half Marathon 10 kilometers 5 kilometers

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Boise River Marathon - Overview

The Boise River Marathon takes place in Eagle, Idaho on May 2, 2026. The course runs along the Boise River Greenbelt and is described by the organizers as flat, fast, and scenic. The event highlights partnerships with local businesses and includes local vendors at the finish area. Organizers list race apparel and medals for participants and finisher food and drink.

Event details

  • Marathon
  • Half Marathon
  • 10K
  • 5K

Entry fees listed on the event page are $85 for the marathon, $60 for the half marathon, $55 for the 10K, and $40 for the 5K. Prices increase after December 31, 2025 at 11:59pm MST. All participants are said to receive a finisher's medal and a classic crew neck sweatshirt is included as swag; registrants within two weeks of the race may not be guaranteed a shirt. The organizers note they may close registration when they can no longer guarantee shirts or medals.

The event page also references a fundraising partnership with the SoleKIDs nonprofit (a 501(c)(3) founded in January 2017) and shows $457 raised toward a $5,000 goal. Volunteer and sponsor information is available through the event materials. Visit the organization's website for the most recent information.

Marathon
Marathon
Half Marathon
Half Marathon
10 km
10k
5 km