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Dirty Dog Trail Marathon and Half Marathon

Boise, United States • 13 Jun 2026

Dirty Dog Trail Marathon and Half Marathon

The event offers two trail race distances in Boise, Idaho, held on the Ridge to Rivers Trail System near the Military Reserve Flood Basin Dog Park. It is the tenth running of these races on the local trail network.

  • Marathon
  • Half Marathon

Both courses include single-track trails and some dirt road sections. The marathon course contains large climbs and fast descents. The half marathon includes similar terrain and is described as appropriate for a first-time trail race. Aid stations are present and described as well stocked with volunteers. Aid station locations for the half marathon are at miles 4.5, 6.8, and 8.9. Aid stations for the full marathon are at miles 4.5, 6.8, 14.5, and 21.5.

A prize of $100 is offered to the first man and first woman to reach the top of the Hard Guy climb. Registration opens on Sunday, February 1, 2026 at 12:00 AM Mountain Time. A shirt is not guaranteed for registrations made after Saturday, May 30, because tank top orders must be placed by that date. Visit the organization's website for the most recent information.

United States Idaho Boise

Race information

Website Registration
26 mi
Marathon
13 mi
Half Marathon
Visit the organization's website for the most recent information.
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