Boise River Marathon

MAY
2
2026
Boise River Marathon in Eagle, Idaho on May 2, 2026 offers marathon, half marathon, 10K and 5K on a flat, scenic Boise River Greenbelt course with local vendors, participant swag, and community fundraising.
Sat 2 May 2026
Marathon Half Marathon 10 kilometers 5 kilometers

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Boise River Marathon

The Boise River Marathon is scheduled for May 2, 2026, in Eagle, Idaho (235 E Colchester Drive, 83616). The event includes four distance options:

  • Marathon
  • Half Marathon
  • 10K
  • 5K

The advertised course runs along the Boise River Greenbelt and is described as flat, fast, and scenic. Race services include a classic crew neck sweatshirt, finisher food and drink, and a finisher's medal; registrants who sign up within two weeks of the race may not be guaranteed a shirt.

Organizers highlight partnerships with local small businesses and health and fitness organizations. Local vendors are expected at the finish area and the event supports community activities and charitable efforts. The race has a fundraising component connected to the SoleKIDs nonprofit; the fundraiser shows $1,224 raised toward a $5,000 goal.

Published entry fees on the event page are $95 for the marathon, $70 for the half marathon, $60 for the 10K, and $45 for the 5K. Additional race information such as course maps, lodging, and a runner's guide are listed by the organizer. Visit the organization's website for the most recent information.

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