Dirty Dog Trail Marathon and Half Marathon

Boise, United States • 28 Jun 2025

The Dirty Dog Trail Marathon and Half Marathon, held in Boise, Idaho, takes place on the scenic Ridge to Rivers Trail System in the Boise foothills. Now in its ninth year, the marathon features a challenging course with significant climbs and fast descents on single-track trails. A special highlight is the "Hard Guy" climb, where the first man and woman to reach the summit win a $100 prize. The half marathon offers a mix of single-track trails and dirt roads, suitable for first-time trail runners. Both races have multiple well-stocked aid stations supported by enthusiastic volunteers, providing a vibrant and supportive atmosphere. Visit the organization's website for the most recent information.

Race information

26 mi
Marathon
13 mi
Half Marathon
Visit the organization's website for the most recent information.
Trail runs nearby

Join the Turkey Trot 4K in Caldwell, presented by Canyon Track Club, a community run that raises funds for youth track and cross country. Run solo or as a four person tethered team on grass with a track finish, and enjoy snacks and event so..

Join the Nampa Pumpkin Spice 5K on Thanksgiving morning for a festive run or walk along the scenic greenbelt. Enjoy pumpkin pie bites midrace, hot cocoa at the finish, and bring a canned good to benefit local food banks.

Tackle winter trails at the Wilson Creek Frozen 50k, a scenic race through Reynolds Creek gorge and up to Wilson Peak. Options range from a full 50k to shorter loops so runners of many levels can join the fun.