Collie River Ultra

Collie River Ultra

Saturday, 13 September 2025

Collie, WA

Follow event Run/Walk Off Road/Trail Relay

The Collie River Ultra Marathon is back on 13 September 2025 with a 100km, 80km relay and 50km in the stunning Collie River Valley, WA.

The 100km course follows the wild and beautiful Wiilman Bilya Trail and takes runners over the top of one of the most iconic dam wall murals in the Southern Hemisphere. You’ll run over bridges, circumnavigate Wellington Dam, through magnificent Yarri, Marri and Jarrah forest on single trails in a massive loop of unique trail.

The 80km relay (teams of 2 - 5) starts at the same point but halfway through the final leg, the 100km runners split off onto a different trail to collect a few more kms, before rejoining the Final Relay Leg to continue with the rest of the runners to the rewarding finish.

Relay leg lengths vary from 12km to 20.5km.

Organiser

Perth Trail Series

Distances/Events

50K
80K relay (teams of 2 - 5)
100K solo

Location map

The 100km and Relay start at Collie Cemetery; the 50km on the Wellington Dam wall.

Please note: the map location may be approximate. Refer to the event website for start lines and course maps.

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This listing was last manually checked on 1 August 2025.

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