Boise River Marathon
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About the race
The Boise River Marathon weekend features a set of out-and-back races along the Boise River Greenbelt between 250 E Parkcenter Blvd in Boise and a turnaround at Lucky Peak State Park. The main marathon covers 26.2 miles round trip; the event also offers shorter distances and a virtual option.
The route is 100% pavement and fully car free, well shaded and close to moving water. Aid stations are located every two miles and the event uses chip timing with live splits and finish alerts. The published course limit for the marathon is 6 hours 30 minutes. Typical early May conditions are a crisp mid 40s start warming into the mid 60s by afternoon, with a chance of a passing spring shower.
Included for every entry are a race shirt in the year’s design (guaranteed for registrations by April 1), a finisher medal, chip timing, free race photos, and finish food and drink. Packet pickup and a riverside finish festival take place at the start and finish location so participants can park once and return to the same spot.
Policies noted by the organizer include free transfers between distances until April 1, a no refund policy with a free deferral option to 2028 until March 15, and that headphones are allowed, strollers are permitted in the 5K, and dogs are not allowed on the race course. Visit the organization's website for the most recent information.
