Mighty Jarrah Trail Run

Dwellingup, Western Australia hosts the annual D100 & Mighty Jarrah Trail Run, a single-day endurance festival on September 13, 2025. The Mighty Jarrah Trail Run offers four distances: 21km Almighty Trail Run, 12km Mighty Trail Run, 6km Mini Trail Run, and a 6km Doggie Dash for canine participants. Located in WA's bushland, the event is billed as WA’s premier one-day MTB and trail-running festival, with a supportive atmosphere and a variety of courses through native forest.

It sits within the D100 & MJTR program alongside the Dwellingup 100 MTB. A community-driven, family-friendly event welcomes entrants of multiple levels. Visit the organization's website for the most recent information.