Embark on a journey of personal bests and breathtaking scenery at Jack and Jill's Downhill Marathon and Half Marathon, set for July 26, 2026, in North Bend, WA. Renowned as one of the fastest marathon courses in the U.S. and a popular Boston Qualifier, this event promises a memorable experience through the heart of the Pacific Northwest. The marathon features an impressive 2,000 to 2,100-foot net downhill descent, beginning at an elevation of approximately 2,549 feet and concluding around 525 feet, while the half marathon enjoys an 1,100-foot drop. Typical race day conditions in late July offer pleasant highs around 72°F and lows near 52°F, with only a 7% chance of precipitation, ensuring comfortable running weather.

The course itself is a unique adventure, primarily following the hard-packed dirt and gravel of the scenic Palouse to Cascades Trail, an old railroad bed that offers natural shade from towering evergreens and lush greenery. Marathoners kick off their race with an exhilarating 2 to 2.5-mile journey through the historic Snoqualmie Tunnel, a cool, dark passage requiring a headlamp or flashlight, which can be dropped with volunteers upon exit. Beyond the tunnel, the gentle, consistent downhill grade is broken only by a slight 15-foot incline around mile 8, making it an ideal route for achieving a new PR. Half marathoners join the course at the marathon's halfway point, enjoying the same fast descent and picturesque views.

Runners consistently praise the Jack and Jill's Downhill Marathon for its well-organized logistics and supportive atmosphere, often citing it as a favorite for its stunning natural beauty and high potential for fast times. Aid stations are strategically placed approximately every 2 to 2.5 miles, stocked with water, Gatorade, and gels, with medical support available along the route and at the finish line. Portable toilets are conveniently located at most aid stations, the start, and the finish area at 44701 SE North Bend Way. Come and experience a fast, scenic, and superbly supported race that stands out for its distinctive course and welcoming runner-centric approach.