Greenvale Backyard Ultra
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About the race
Greenvale Backyard Ultra 2025 is a last-man-standing ultramarathon held in Forth, Tasmania, Australia. The event uses the Backyard Ultra format, with competitors running a 6.71-km loop every hour until only one runner remains. Known as Greenvale BYU, it attracts about 95 participants and is sold out.
The registration fee is A$150.00. The race is scheduled for December 12, 2025. The format focuses on endurance over repeated hourly loops rather than a single distance, making it a challenging test of stamina and strategy.
With a fixed-hourly schedule, competitors must manage rest and nutrition between loops. The event stands as a notable endurance challenge in Tasmania. Visit the organization's website for the most recent information.