Tartarus Backyard Ultra

Tartarus Backyard Ultra

Register Saturday, Aug 15, 2026 @ 8:00 AM at Camp 7 - Riverside State Park Spokane , WA. This event includes a Run Event and a Ruck Event.

Run Event: 4.1667 Mile Laps

Ruck Event: 2.2 Mile Laps

The concept is simple. It’s a last person standing race. In the end, only one Runner and one Rucker will finish the race. Races will continue until only one runner remains. At that point, the last Runner and Rucker must complete a loop on their own. If they can complete the loop than that person is the winner for either the Run or Ruck race. All other runners are considered Did Not Finish (DNF).

Race Details & Rules

• At 0800 hours on Saturday, we will start a race at the old airstrip in Camp 7 and will use the local trails to complete the daytime loop.
• Each Runner and Rucker has exactly one-hour to complete the loop.
• Runners and Ruckers must be standing in the start line corral when the next race starts. If you are out of the corral, you can not continue.
• No late starts are allowed once the bell is rung.
• At 2000 hours, the races will be moved to an out-and-back course on the Centennial Trail.
• At 0800 hours the next morning, the races will continue on the trail loop.

Backyard 24 Special Rules

The Backyard 24 would not be an open-ended race. Everyone who makes it to 24 hours is tied for first. There is no single "winner" if no single runner completes the run. If there is only one runner, the sole runner may continue to finish 24 hours.

Ruck Requirements

Core weight is defined as the total weight of your ruck and the weight used to achieve the minimum weight requirements. This does not include things like water and food or other equipment. If you weigh greater than 150 pounds, then your core weight is 30 pounds. If you weigh less than 150 pounds, then your core weight is 20 pounds. There is no male/female variance, just body/ruck core weights. No vest allowed, must be traditional rucks.