Jack & Jill Downhill Marathon
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Jack & Jill Marathon & Half - Snoqualmie Tunnel, WA
Jack & Jill is a two-day marathon and half marathon weekend held at Snoqualmie Pass, Washington on July 25 and 26, 2026. Distances offered include:
- Marathon
- Half marathon
The course begins near Hyak, passes through a more than two mile Snoqualmie Tunnel segment, and finishes in North Bend. The surface is a smooth, hard-packed rail-trail with a wide alignment and minimal turns. The route features a sustained descent with about 1,300 feet of sustained downhill and roughly 1,100 feet net elevation loss. The course is USATF certified and eligible for Boston Marathon qualification with no downhill time adjustment.
Race operations include professional timing with live tracking and the presence of experienced pacers. The event is an official Abbott World Marathon Majors Age Group World Rankings qualifier and is part of the Downhill Super Series. The event is produced by Run Super Series, established in 2016.
Information focuses on course characteristics, certification and ranking eligibility, race production, and the tunnel segment. No start or finish times are provided here. Visit the organization's website for the most recent information.
