Babbitts Backyard Ultra
Flagstaff, United States • 26 Sep 2026
Event overview
Babbitts Backyard Ultra is a Last Person Standing backyard ultra held near SP Crater in Flagstaff, AZ. The course uses a combination of dirt trails and road with approximately 150 ft of elevation gain and views of the crater and the Peaks. The event is organized as a not-for-profit; any net proceeds will be placed into a fund to support local businesses or non-profit.
Course and format
Runners complete repeated loops of 4.167 miles. Each loop starts precisely one hour after the previous loop; the race begins after a bell and continues hour by hour until only one runner is left who can complete the loop. Every surviving runner who completes a loop is tied for the lead for that hour. Results report each runner’s distance covered.
Rules and logistics
Race procedures include a 3, 2 and 1 minute warning prior to each start. Competitors must be in the starting corral at the bell and must start with the bell; late starts are not allowed. Except for restroom breaks, runners may not leave the course during a loop. No non-competitors are allowed on the course, and no personal aid is permitted during a loop. Artificial aids, including trekking poles, are prohibited. Water will be available and each runner is allocated a 10' by 10' space near the start/finish. One crew member at a time per runner is allowed. Runners who retire must vacate their space so survivors can use it.
Health and safety
Trails are described as wide. Hand sanitizer will be available and social distancing will be observed. Visit the organization's website for the most recent information.