Boise River Marathon

MAY
2
2026
Run the scenic, flat Boise River Greenbelt at the Boise River Marathon in Eagle, Idaho on May 2, 2026 with marathon, half, 10K and 5K options for every pace. Enjoy a classic crew neck sweatshirt, finisher medal, local vendors and a festive finish line celebration.
Sat 2 May 2026
26 miles 13 miles 10 kilometers 5 kilometers

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Boise River Marathon - May 2, 2026

The Boise River Marathon takes place on May 2, 2026, in Eagle, ID 83616, USA. The event includes multiple distance options along the Boise River Greenbelt. The course is described as flat, fast, and scenic and runs alongside the river. Local businesses and race-day sponsors are involved, and local vendors are planned at the finish area. Event swag includes a classic crew neck sweatshirt, a finisher's medal for all participants, and finisher food and drink. Registrants who sign up within two weeks of the race may not be guaranteed a shirt; organizers may close registration when they can no longer secure shirts or medals.

Distances

  • Marathon
  • Half Marathon
  • 10K
  • 5K

Entry fees and charity

Entry fees listed in the event information are: Marathon $85, Half Marathon $60, 10K $55, and 5K $40. Prices increase after December 31, 2025 at 11:59pm MST. The event lists a fundraising goal of $5,000 for a partner charity, with $878 raised at the time of the listing. The SoleKIDs program is noted as a 501(c)(3) nonprofit founded in January 2017. Visit the organization's website for the most recent information.

26 mi
Marathon
13 mi
Half Marathon
10 km
10k
5 km