Lazy A Backyard Ultra

Lazy A Backyard Ultra

The Lazy A Backyard Ultra takes place on May 9, 2026 in Udall, KS at 1868 E 60th Ave N. The event uses the backyard ultra format sometimes called "Last One Standing" in which runners complete repeated laps until only one runner finishes an extra lap.

Each lap is 4.167 miles (6.706 kilometers) and counts as one Yard. Runners must complete each lap within one hour. Laps begin every hour on the hour and runners who fail to start exactly on time are eliminated. Any unused time within the hour may be used for rest, eating, hydration, or preparation for the next lap.

The race continues until a single runner completes one more lap than all others. If no runner completes an additional lap beyond the others, there is no winner. The final lap must be completed solo for the winner to be declared. Runners who do not continue receive a DNF designation that will not appear as a standard DNF on record but will instead show total miles accumulated.

Course support and rules note that there is no personal pacing or on-course crew support; common aid stations are provided and crew access is allowed only at the start/finish between laps. Runners are responsible for hydration and fueling, should carry appropriate hydration, must wear reflective gear and carry a light after dark, run on the left on public roadways, and must leave dogs at home. Organizers may intervene if a runner is judged unfit to continue.

All participants receive a bib, t shirt, and a custom medallion denoting Yards completed. First place male, female, and non binary finishers receive free entry to the next year and a Lazy A railroad spike knife. Registration closes May 5 at 11:59 PM CT. Visit the organization's website for the most recent information.