Collie River Ultra Marathon

The Collie River Ultra Marathon (CRU100) is a premier trail running event held in the picturesque town of Collie, Western Australia. Participants can choose from three event categories: a 100km solo run, a 50km solo run, or a relay marathon for teams of 2-5 runners. The course features stunning trails through jarrah, marri, and yarri forests, offering breathtaking views of the Collie River Valley and Wellington Dam.

With a focus on community and support, the event is fully serviced, ensuring runners have access to well-stocked checkpoints and assistance throughout the race. Registration is now open for this exciting adventure. Visit the organization's website for the most recent information.