Collie River Ultra Marathon

Collie, Australia • 13 Sep 2025

The Collie River Ultra Marathon (CRU100) is an exciting 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 lush bushland, including the newly developed Wiilman Bilya Trail, offering a mix of easy and technical terrain. With full race support, well-stocked checkpoints, and a vibrant community atmosphere, the CRU100 promises a rewarding experience for both seasoned runners and newcomers alike. Visit the organization's website for the most recent information.

Race information

101 km
2000 m+
Cru100
76 km
1600 m+
Relay
50 km
1051 m+
Cru50
Visit the organization's website for the most recent information.
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