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The 26th Atomic Days Blast Off Fun Run takes place on July 18, 2026, in Arco, Idaho. Participants can choose from three distances: a 10K, 5K, or 1-mile event. The race serves as the official kickoff to the Atomic Days community celebration and welcomes runners of all ages and fitness levels.
Distances
Distances as listed on a public calendar. Nothing about entry, timing or inclusions is on file.
Course preview
Getting there
Arco, ID. Exact start not reported.
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