Trailsplus - Maribyrnong Valley Park Backyard Ultra
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About the race
Maribyrnong Valley Park Backyard Ultra at Brimbank Park is a time based lap event held across the long weekend of Fri 5th Feb to Mon 8th Feb 2027. Runners complete a 6.7km loop every hour, on the hour, and must finish each lap within the hour to continue. After each completed lap those still running are recorded as tied for first place.
Entry options include a full open entry for unlimited laps or preset yard options with fixed lap limits. The organiser lists four stages by laps and approximate distances:
- 4 Yards 25 km
- 7 Yards 42 km
- 15 Yards 100 km
- Open unlimited laps
A fees table for 2026 is shown and 2027 fees are noted as available soon. The event uses the Humanitix ticketing system and Trailsplus donates $1 per participant to Canteen, the Australian organisation for young people living with cancer; a 2025 update records 180 competitors and $250 donated from online runner contributions.
Course maps and an event guide are available for participants. The venue is Brimbank Park, Keilor Park Drive, Keilor VIC 3036. The format emphasises lap management and endurance rather than outright speed. Visit the organization's website for the most recent information.
