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Loosdorf / Albrechtsberg an der Pielach, near Prinz company, Loosdorf, Niederösterreich, Austria
ABU Loosdorf TRAIL | Austria Backyard Ultra is a Backyard Ultra event held at Loosdorf / Albrechtsberg an der Pielach in Lower Austria. The race follows the standard Backyard Ultra format: runners complete a 6.706 km loop each hour and must start the next lap on the hour, with the event continuing until only one runner remains. The organiser emphasises a festival-like race village with musical accompaniment, camping at the start/finish meadow and DNF trophies and certificates for participants.
The course is predominantly single‑trail and forest track with short asphalt sections and roughly 170 m elevation gain per loop; GPX downloads and a route map are provided on the official page. Registration is tiered with a 150‑entrant cap, an optional €5 BE SAFE refundable option, and an optional 3‑person Team‑Challenge; prizes from La Sportiva and DUV scoring are indicated. The organiser notes safety, insurance and a storm cancellation/refund policy for the Ofenloch forest area and requires headlamps for night running.