PHASE ONE//THE LAST ONE
Backyard Ultra

PHASE ONE//THE LAST ONE

SPOKANE, Washington
Days to go
235

At a glance

Date
May 29, 2027
Location
SPOKANE, Washington
Distances
Backyard Ultra
Registration
See ultrasignup.com
Official site
phase1missions.com
Listed from
RunSignUp
Last checked
Oct 4, 2026

Plan this race for free

Aid stations, cutoffs and pacing in one plan, with the timeline your crew follows. Crew invites and race-day updates come with a Race Pass.

Build my plan

About this race

Inspiration

L.O.S is more than a race. It is a Phase One Mission - an invitation to train for adversity, define resilience, and find hope, leaving no one behind. L.O.S is an opportunity to maintain your internal line of sight and search for strength within.

Course Description

Starting at sunrise, runners will run a 4 mile route every hour on the hour until there is a last one standing.

Course:

A 4 mile course staged at a staged 1.58 mile dirt track.

Key dates

Race day

May 29, 2027

235d

Email me updates about PHASE ONE//THE LAST ONE

Registration openings and major changes, like a new date or a cancellation.

Entry transfers

Can't race, or need an entry? Post it here so nobody has to ask if it's still available.

Similar races

  • PHASE ONE//ENDURANCE FEST

    Jun 19, 2027Spokane, WA101 mi, 24 hr +3

    1 mi from PHASE ONE//THE LAST ONE, 3 weeks after PHASE ONE//THE LAST ONE

  • Wild Moose Chase

    Nov 8Nine Mile Falls, WA25K, 10K +1

    3 mi from PHASE ONE//THE LAST ONE, registration open

  • Kaniksu Trail Runs

    Jun 12, 2027Frater Lake, WA100K, 50 mi +4

    63 mi from PHASE ONE//THE LAST ONE, 2 weeks after PHASE ONE//THE LAST ONE

  • The Huckleberry Hundred

    Jul 24, 2027Spokane, WA100 mi, 50 mi +1

    9 mi from PHASE ONE//THE LAST ONE, 8 weeks after PHASE ONE//THE LAST ONE

Straight-line distance

All races in Washington
All races near Spokane
All May races
Race planning

Plan PHASE ONE//THE LAST ONE with Crewable

Build your aid station plan, organize your crew, and dial in your nutrition strategy. Everything you need to finish strong.

Build my plan

Are you the race director for PHASE ONE//THE LAST ONE?

Claim this race to manage registration, volunteers, and race day.

Claim your race