14 races across Idaho in May 2027. Your next race, seen from above.
Flat, fast marathon along the scenic Boise River Greenbelt
Runs the historic Long Bridge over Lake Pend Oreille
Relay teams circle the full 45-mile Boise River Greenbelt
Starts and finishes among Rivaura's vineyard rows
Boises biggest race day showcasing the citys scenic riverside beauty
Idaho's oldest winery hosts this Snake River Valley run
Finishes among the vines at Telaya Wine Co.
Idahos most scenic race, circling the shores of alpine Redfish Lake
Raises funds for free legal aid at Fort Boise Park
Priest Lake's oldest running race
Marathon along the shimmering shores of Lake Coeur dAlene
Runs through Indian Creek Winery's vineyards
Every race here is published by its organiser; RunCalendar checks the date and the entry window against the organiser's own page and rebuilds this calendar every night. A confirmed date shows its day; a provisional one shows only its month. Last updated 22 October 2026.