The course.
The Guzzler Ultra is Brisbane's premier trail running festival, returning to Mt Coot-tha on Saturday, 18 July 2026. Presented by Those Guys Events and powered by Brisbane's thriving trail running community, the festival offers four distances to suit every runner: the flagship 100km Guzzler, the Glass Half Full 50km, the Big Sipper 21km, and the Dry Run 10km for younger runners. Courses wind through rugged single track, challenging hills and past Brisbane's oldest reservoirs in the order they were built, delivering the buzz of one of Australia's biggest trail races. The 100km is both a Western States 100 qualifier (sub-24 hours) and a UTMB® World Series Qualifier, drawing serious ultra runners alongside first-timers chasing their next trail adventure. Entries sell out fast — lace up and join the fun.
