Saguaro Showdown

JAN
24
2026
Saguaro Showdown is a last person standing backyard ultra at Usery Mountain Regional Park in Mesa, Arizona, with separate running and rucking divisions. Loop by loop through day and night, competitors vie to be the final finisher in this gritty endurance challenge.
Sat 24 Jan 2026
Ruck Event - 2.3 Mile Lap... Run Event - 4.1667 Mile L...

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Event overview

Saguaro Showdown is a backyard ultra held at Usery Mountain Regional Park in Mesa, AZ. The event runs two separate categories: a running race and a rucking race. Each participant may enter only one category. The format is last-person-standing: the event continues until a single runner and a single rucker complete a final loop alone. Overnight presence at the start/finish area is permitted and there is space for a chair, cooler, and small personal gear next to the line. Portable toilets are located just after the start line.

Course, format and rules

  • Run laps: 4.1667 miles
  • Ruck laps: 2.3 miles

Races use a repeating loop format with a fixed time to complete each lap; a new loop starts regularly and participants must be standing in the start corral when the next loop begins. No late starts are allowed after the start signal; the start sequence uses whistles and a bell. Once the bell rings, participants must stay on course and may not receive aid from others until they finish that lap; leaving the course is allowed only to use the portable toilets. Crews are permitted but runners must provide their own aid. At night the race moves to an out-and-back road course and then returns to the trail loop the next morning.

The Backyard 24 option ties everyone who reaches 24 hours for first place; if only one runner reaches 24 hours, that runner may complete the full period. Ruck core weight requirements: over 150 lb = 30 lb, under 150 lb = 20 lb. Fundraising may substitute for the registration fee if a specified minimum is raised. Visit the organization's website for the most recent information.

4 mi
Run Event - 4.1667 Mile Laps
Ruck Event - 2.3 Mile Laps

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