OUTLAST - Seattle
Sammamish, Washington, United States
Jul 18, 2026 - Saturday
Other, 6hr
Race Information
OUTLAST is a 6-hour trail endurance challenge where runners tackle a 5K every hour. Finish each lap on time to stay in; miss one, and you’re out. Test your pacing and mental grit in a thrilling natural terrain setting.
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Downhill Super Series 🪽
3 of the Fastest Boston Qualifier Courses in the U.S.
#22 Fastest | #35 Fastest | #5 Fastest 🇺🇸
Boston Marathon qualifying eligible with no downhill penalty! Marathon and half marathon distances un through the iconic Snoqualmie Tunnel.
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🪽 Super Hyak Marathon & Half - June 13th
🌲 Jack & Jill Marathon & Half - July 25 & 26th
⛰️ Cascade Express Marathon & Half - Sept. 12th
These smooth rail-trail courses feature sustained net downhill profiles designed to help runners chase personal bests and Boston Qualifying times. Located along the Palouse to Cascades Trail, this historic rail tunnel offers cool temperatures and a unique running experience before the course continues downhill toward the finish.
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Race Facts
Race Size: 100 - 500
Course Type: Trail
Boston Qualifier: No
Kids Run: No
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