Waterous Trail On Foot (Wtf)
Dwellingup, Australia • 26 Sep 2026
Event overview
The WTF 50 & 100 Miler is a trail ultra held in Western Australia. It is presented as the state’s original 100 mile trail race. The event is staged on the King’s Birthday long weekend in September. The race will not run in 2025 and is scheduled to return in 2026, with an event date given as Saturday 26th September 2026.
Distances offered:
- 100 mile
- 50 mile
- 50 km
All distances are offered as solo and relay options. All event categories depart together and share the trail for the first leg.
Course and history
The race name refers to the Waterous Trail, south of Dwellingup. The inaugural race was held on 28 September 2013. The original course plan shifted to run predominantly on the Munda Biddi trail between Jarrahdale and Dwellingup after a prescribed burn affected the intended area. Race headquarters moved from Dwellingup to Nanga Bush Camp (about 10 minutes south of Dwellingup) in 2019. The course format changed from two out-and-back legs in 2019 to three out-and-back legs in 2021. A 50 km race distance was added in 2022. Visit the organization's website for the most recent information.