Backyard Ultra Los Molinos 2027

Backyard Ultra Los Molinos is a backyard ultra held in Los Molinos. Runners complete a 6.706 km loop each hour, continuing until they cannot answer the next bell. The primary ultra distance is 100 km, with marathon and pairs categories also using the same loop. The event has a field limit of 130 participants. The race format prioritizes endurance over speed. Completing a loop too quickly results in waiting for the next hour, while finishing too slowly leads to elimination. A recent 34-hour edition attracted over 100 participants, indicating a strong local interest in this demanding racing style. Vueltas a la Cabeza organizes the event, with assistance from Los Molinos City Council.