On Monday October 5th 2026, get ready for the Sydney Trail Marathon, STM 21, presented by 180 Cadence.
The race takes place in Bidjigal Reserve, a rare island of natural beauty in the heart of Sydney. Alive with noise, colour, and movement, this rugged sanctuary is rich with hidden treasures waiting to be explored.
STM21 Race Details
21.1km
7:00 am
Start Time
Distance
Start Line
Eric Mobbs Reserve
Date
Monday, 5th of October 2026
Long Weekend
Elevation
+887 m / -887 m
STM 21 is a single-lap course that takes runners beneath towering eucalypt canopies where the sunlight filters through the leaves, streams flow gently alongside the trails, and creeks sparkle in the morning light.
Pricing
STM 21 is limited to 300 runners
Early Birds
$140.00
Standard Entry
$149.00
Final Release
$159.00
Mandatory Gear
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Must be fully charged with a live SIM card capable of making calls and accessing the internet.
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The bandage is required as you might need to use it treat sprains or potential snake bites. We recommend this snake bandage from Amazon.
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This can be in the form of 1 × 500ml running flasks, a bladder or normal water bottles.
Please note that STM is a cupless event.
The Sydney Trail Marathon 21.1km course traverses trails where it might take some time for medical and support services to reach you, therefore it is essential that every athlete carry their mandatory gear at all times.
STM is a cup-less event.
Athletes are required to carry their own drinking cup, bottle, flask or hydration vest which can be used at the aid stations.
