Birdy's Backyard Ultra
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About the race
Birdy’s Backyard Ultra is a backyard-style ultra held at the lakeside campground at Lake Towerrinning, Moodiarrup, Western Australia. The event uses a repeating loop format: participants run a 6.71 km loop every hour, starting each lap on the hour and continuing until only one runner remains.
The venue is a locked, exclusive campground where the caravan park and camping area are dedicated to the event for several days. The on-site setting brings together runners, crews, and supporters who share the campground atmosphere throughout the competition. The event is part of the Ultra Series and is noted as an original World Series–affiliated Backyard Event for that series.
Entry details listed include a planned entry opening date of 18 September 2026 and an expected field size of about 200 runners with roughly 400 supporters on site. Race information pages reference a race manual, course description, aid station details, mandatory gear, entry fees, and results archives.
Volunteers are used to staff the event, and volunteers receive a 20 percent discount toward a future Ultra Series event. The format emphasizes repeated hourly loops beginning and ending at the same finish line until only one competitor remains. Visit the organization's website for the most recent information.