Jack & Jill Downhill Marathon
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Event overview
Jack & Jill's Downhill Marathon is a two-day running event on July 25 and 26, 2026, in North Bend, Washington. Both the full and half marathon are offered on each day; participants may register for either day or both. The event is USATF sanctioned and accepts finish times for Boston qualification. The race is listed among the world's top 25 fastest courses.
- 26.2 miles - Full marathon
- 13.1 miles - Half marathon
Course and logistics
The course follows a hard-packed, shaded dirt and gravel trail with a net descent of about 2,000 feet. The elevation profile shows an overall elevation loss of 2,116 feet and a gain of 76 feet over roughly 26 miles, including a section through the Snoqualmie Tunnel and about 23 miles of gradual downhill on the Palouse Trail. A rolling start is used, with staggered pace waves around one minute apart; runners are asked to line up by pace. Marathon runners must carry a light for the tunnel and use the bib tear tag to mark that light. Road shoes are recommended; trail shoes are not required. Aid stations are located about every 2.5 miles and provide water, Gatorade, and GU gels at selected stations. Half-marathon logistics include shuttle buses to the trailhead and a one-mile walk to the start; there is no parking at the half start, trailhead, or finish. Packet pickup is at Snoqualmie Running Company; limited race-day pickup is available only if pre-arranged. No refunds, deferrals, or transfers are offered except when volunteering. Visit the organization's website for the most recent information.
