IRONMAN 70.3 Western Australia

The bike and run courses are among the flattest on the global IRONMAN circuit and with stunning seaside views, and unrivaled local support, it’s easy to see why this is a must-do event for athletes around the globe. Half-distance triathlon: 1.9 km swim, 90 km bike, 21.1 km run.

Listed via nirvanaeurope.com. Dates and details can change — always confirm on the organiser’s site before entering.