Waterous Trail On Foot (Wtf)
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WTF 50 & 100 Miler
The WTF 50 & 100 Miler is a trail ultra event in Western Australia, described as the region’s original 100 mile trail race. It is held annually on the King’s Birthday long weekend in September. The next scheduled edition is Saturday 26 September 2026; the event will not run in 2025 but will return in 2026. The race began with an inaugural running on 28 September 2013.
Distances:
- 100 miles
- 50 miles
- 50 km
All event formats, including solo and relay entries, depart together and share the trail for the first leg. Entry is handled via the event registration page.
Course and history
WTF stands for Waterous Trail on Foot. The original plan was to use the Waterous Trail south of Dwellingup, but the course was moved to run predominantly on the Munda Biddi trail between Jarrahdale and Dwellingup after a prescribed burn affected the original area. Race headquarters moved from Dwellingup to Nanga Bush Camp (about 10 minutes south of Dwellingup) in 2019, with a two out-and-back leg layout that changed to three out-and-back legs in 2021. A 50 km distance was added to the event program in 2022. Visit the organization's website for the most recent information.
