WTF Trail Ultra

The WTF Ultra is Western Australia’s original 100-mile trail ultra marathon, renowned for its challenging terrain and breathtaking scenery. Held annually on the King’s Birthday long weekend in September, this event offers runners the opportunity to test their endurance across a mix of tracks and trails.

Why WTF? Other than being an attention-grabbing name, WTF stands for Waterous Trail on Foot. Named after the off-road cycling loop trail south of Dwellingup, it’s a nod to the events history and the rugged, scenic tracks runners will tackle.

Race Distances

• 100 Mile – Solo or Relay (teams of 2–6)

• 50 Mile – Solo or Relay (teams of 2–3)

• 50 Kilometre – Solo only

All events commence at om Nanga Bush Camp, with participants sharing the initial leg of the trail before branching into their respective courses.

Registration for the 2026 WTF Ultra will open closer to the event. For the most up-to-date information on registration and event details, please visit the official event website.