A challenging backyard ultra marathon held on the iconic Smithfield Mountain Bike Trails in tropical Cairns.
Sat, 24 Oct 2026
Smithfield Mountain Bike Park Trail head Smithfield , Queensland
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Smurf's Backyard Ultra is a premier endurance running event set in the tropical landscape of Cairns, Far North Queensland. Participants will traverse the famous Smithfield Mountain Bike Trails, covering 6.7km loops in a test of grit and stamina. Designed for runners who thrive on endurance challenges, this event offers a unique opportunity to experience the lush Australian rainforest while pushing personal limits. Whether you are a seasoned ultra-runner or a dedicated enthusiast, this race promises an unforgettable experience.
What to Expect
A rigorous, multi-loop trail running event where participants must complete each 6.7km lap within a set time frame to continue.
Who Should Attend
Ultra marathon runners
Trail running enthusiasts
Endurance athletes
Fitness community members
Agenda Overview
The event commences on October 24, 2026, at the Smithfield Mountain Bike Park Trail head.
Venue & Address
Smithfield Mountain Bike Park Trail head
88 McGregor Rd Smithfield , Queensland – 4878 Australia
Organizer
Smurf Endurance Sports · Sports Organization
Organizers of endurance running events in Far North Queensland.
Frequently Asked Questions
Where is the event located?
It is held at the Smithfield Mountain Bike Park Trail head, 88 McGregor Rd, Smithfield, Queensland.
What is the distance of the loop?
Each loop is 6.7 kilometers long.
Is this event for beginners?
It is an endurance event best suited for experienced runners.
What should I bring?
Standard trail running gear, hydration, and nutrition for long-distance endurance.
How do I register?
Registration details are available via the official Smurf Endurance Sports website.
Is there a mini version?
Yes, a Backyard Mini event is often held alongside the main race.