Prepare for an unforgettable challenge and scenic beauty at the Northwest Series - Day 6 in Lewiston, ID, taking place on September 24, 2026. This event, part of the renowned Mainly Marathons "World's Best Marathon & Half Series!", offers distances for every runner, including a Marathon (26.2M), Half Marathon (13.1M), 10K, and 5K. Held within the picturesque Hell's Gate State Park, the course promises a "challenging yet scenic" experience on an out-and-back route. Runners will navigate a mostly flat and paved path, interspersed with a few small hills and gravel sections, all while benefiting from a moderate amount of shade. The Half Marathon involves six loops of the 2.2-mile course, while the full Marathon requires twelve, ensuring consistent aid opportunities and a chance to experience the park's beauty repeatedly.

What truly sets this race apart is its runner-centric approach and vibrant atmosphere. As a "no time limits" event, it fosters an inclusive environment where personal achievement triumphs over the clock, allowing participants to truly soak in the "pure adrenaline and achievement". Typical race day conditions in late September in Lewiston boast comfortable highs around 76F and lows near 50F, with a minimal 2% chance of precipitation, providing ideal running weather. The Northwest Series is celebrated for its "loony community" spirit, delicious post-race food, and coveted award-winning medals, making it an experience that goes beyond just the miles.

Join a passionate community designed for those who love to run long and run often. The Northwest Series - Day 6 invites you to push your limits, enjoy exceptional support, and celebrate your accomplishment in the stunning setting of Hell's Gate State Park.