Smurf's Backyard Ultra

OCT

24-25

2026

Smurf's Backyard Ultra in Cairns has runners complete a 6.7 km loop each hour until one runner remains; a Mini Backyard option allows up to six laps. The weekend includes a Saturday night event with food, drinks and live music.

24-25 Oct 2026

Smithfield,

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Backyard Ultra Loop Mini Backyard (up to 6 La...

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Smurf's Backyard Ultra

Smurf's Backyard Ultra is a backyard ultra event held at Smithfield Mountain Bike Park in Cairns, Far North Queensland, Australia. The 2026 edition is scheduled for October 24-25 and is organised by Smurf Endurance Sports.

The event uses a repeating 6.7 km loop on the Smithfield mountain bike trails. Runners complete one lap each hour; laps continue on the hour, every hour, until only one runner remains. A separate Mini Backyard option allows participants to complete up to six laps of the same loop.

Distances:

6.7 km loop per lap
Mini Backyard: up to 6 laps of the 6.7 km loop

The event programme includes a Saturday night gathering with food, drinks, a bar and live music. The location and course take place on established mountain bike trails at Smithfield MTB Park in tropical Cairns. Visit the organization's website for the most recent information.

40 km

Mini Backyard (up to 6 Laps)

7 km

Backyard Ultra Loop