Boise River Marathon
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About the race
Boise River Marathon is a riverside running event in Boise, Idaho, on May 2, 2027. Races use the Boise River Greenbelt and start and finish at 250 E Parkcenter Blvd. The marathon is an out-and-back to a turnaround at Lucky Peak State Park; every distance follows its own out-and-back route along the river.
The course is 100% paved, fully car free, ADA compliant, well shaded, and runs close to moving water. Aid stations are placed approximately every two miles. The event uses chip timing with live splits and finish alerts, and there are free race photos, a finisher medal for every finisher, and a race shirt for registered entrants. Parking is at the single start/finish location so participants can park once for the day.
Typical early May conditions are a cool start warming through the day, with the river often running high from snowmelt and cottonwoods leafing out near the course. Entries are nonrefundable; transfers between distances are free until April 1 and deferral to the 2028 race is available until March 15. Strollers are allowed in the 5K; dogs are not permitted on course.
Distances offered Visit the organization's website for the most recent information.
- Marathon: 26.2 miles out and back to Lucky Peak State Park
- Half Marathon: 13.1 miles out and back
- 10K: 6.2 miles out and back
- 5K: 3.1 miles out and back
