When Is The Sydney Marathon 2025. When is the sydney marathon 2025? This is a little different to previous years, when the race has been held in the second.

Once you’ve locked in your tri team, set a reminder to register (remember they sell out quickly) and start nutting out your practice schedule that ensures you’re training up in all three areas of the tri—swimming, running and biking. On sunday, august 31, 2025, our first herd of team elephant charity runners will enjoy one of the world’s most spectacular marathon courses, running across the sydney harbor bridge to the finish line at the stunning sydney opera house.