Dirty Dog Trail Marathon and Half Marathon

JUN
13
2026
A trail marathon and half marathon in the Boise foothills on the Ridge to Rivers Trail System. Courses use single track and dirt roads, include multiple aid stations, and feature a cash award on the Hard Guy climb.
Sat 13 Jun 2026
26 miles 13 miles

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Dirty Dog Trail Marathon and Half Marathon

The event marks its 10th running in the Boise foothills at the Military Reserve Flood Basin Dog Park on the Ridge to Rivers Trail System. It offers running on local single track and some dirt road sections through the foothills near Boise, ID.

Distances:

  • Marathon
  • Half Marathon

The marathon course features large climbs and fast descents, with extensive single track. The half marathon combines single track and dirt road segments and is presented as an option for a first time trail race.

Aid stations are positioned along each course. Half marathon aid stations are at miles 4.5, 6.8 and 8.9. Marathon aid stations are at miles 4.5, 6.8, 14.5 and 21.5. Volunteers staff the aid stations.

A $100 bill is offered to the first man and the first woman to reach the top of the Hard Guy climb. The event includes a shirt guarantee cutoff: registrations after Saturday, May 30th are not guaranteed a shirt. Registration closes on Saturday, June 6 at 11:59 PM MT. Visit the organization's website for the most recent information.

26 mi
Marathon
13 mi
1/2 Marathon
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