L.O.S - Last One Standing

MAY
29
2027
A Spokane endurance event where runners complete a four mile loop each hour until one remains, with a semi stocked aid station and self support encouraged.
Sat 29 May 2027
Last One Standing

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PHASE ONE//THE LAST ONE

PHASE ONE//THE LAST ONE takes place May 29, 2027 in Spokane, WA at the Phase One training grounds and nearby areas including the Reardan Cross Country track in Seven Mile, Riverside State Park, and Mt Spokane State Park. The event is organized by Phase One Missions.

The format is an elimination endurance event: participants run a four mile route every hour on the hour until only one runner remains. Each hourly segment consists of two laps of a 1.56 mile loop plus an out and back to make four miles. Runners will encounter the course hill three times each hour. Elevation gain or loss per 1.56 mile loop is roughly 80 feet. No pacers are allowed. A participant stops when they fail to complete the distance before the next hour or when they notify the Race Director that they are tapping out.

One semi stocked aid station will provide Tailwind Endurance Fuel, NeverSecond 30 g carb gels, 1st Phorm protein bars and energy drinks, water, and various snacks. Runners are encouraged to be largely self sufficient. Crew tents are allowed in a designated section of the parking lot as authorized by trail owners. Required gear includes a head lamp, running gear, food, water, and electrolytes.

Packet pick up is available at the race location on the day before and the morning of the event. There are no refunds. Registered participants receive a Phase One training tee and a Phase One patch upon completion of the endurance challenge. Volunteer hour discounts are offered toward event entry. Visit the organization's website for the most recent information.

4 mi
Last One Standing

Events nearby

A fall running event in Spokane Valley on November 8, 2026, with 25K, 10K, 5K, a kids run and a virtual option, raising funds for EWU physical therapy students.
Experience a historic skiing tradition at Mount Spokane State Park. This 10K event features wave starts for all speeds and includes dedicated categories for adaptive skiers on the scenic Nordic trail system.
A volunteer-organized trail running event at Riverside State Park on April 25, 2027, offering distances from 5K to 50K, relays, and a two-person tag team. Proceeds support local youth programs and partner organizations.
An endurance festival in Spokane, WA featuring looped ultraruns, timed challenges, on-course aid, and awards for finishers.
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