Collie River Ultra Marathon

Collie, Australia • 13 Sep 2025

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.

Race information

100 km
2000 m+
100km
76 km
1600 m+
Relay
50 km
1051 m+
Visit the organization's website for the most recent information.
Trail runs nearby

The Collie Trail Fest will take place in Collie from Saturday 29 March 2025 to Sunday 30 March 2025.