
Claremont, Australia · Saturday 10 January 2026
The Cadbury Marathon takes place in Claremont, Australia in January 2026 on a trail surface with minimal elevation change. The course is predominantly flat with gentle rolling sections, gaining only 91 metres over the full 42.2 kilometres, so you won't be dealing with any serious climbing. This makes it a solid choice if you're after a relatively straightforward trail marathon without the energy drain of significant elevation. The race is part of a larger event series that also includes a half marathon, 10km, 5km, and 1km options, so you might have training partners joining you in other categories. Registration details were still being finalised at the time this information was published, so check the official website or their Facebook Events page for current entry status and to download the event booklet.
Adjusted Time
4:33:11
Time difference: +33.2 minutes compared to a flat, road, temperate course.
Cadbury Marathon is a full marathon held in Claremont, Australia, scheduled for Saturday 10 January 2026. The course is run on trail surface with 91m of total elevation gain, reaching a maximum altitude of 26m above sea level. For registration and full race details, visit the official Cadbury Marathon website.
This is a very flat course with only 91m of total elevation gain across the full distance. The course ranges from 5m to 26m above sea level — a 21m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Cadbury Marathon is a trail race, meaning the course includes unpaved surfaces such as dirt, gravel, or forest paths. Trail surfaces are inherently slower than road courses due to uneven footing, technical sections, and often steeper gradients. Trail-specific shoes with good grip are recommended, and runners should expect a finish time 10-20% slower than their equivalent road marathon time.
Our difficulty rating for Cadbury Marathon is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Cadbury Marathon against other marathons to find the right race for your goals.
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