Logo

Insomnia 100

Townsville City, Australia • 27 Sep 2025

The Insomnia 100 is an ultra-running event held in Townsville, Australia, organized by the Townsville Triathlon Club. It features two main races: the Riverway Insomniac 100 Ultra and the Riverway Insomnia 42 Marathon. The unique format involves completing laps of a 4.2 km course every hour for 24 hours, alternating between clockwise and anti-clockwise directions.

Solo runners or teams of 2-4 can participate, with team members alternating laps. The event includes a semi-secure rest area and encourages self-sufficiency in nutrition and hydration. Proceeds support the humanitarian charity Prevail, aiding trauma care in Ukraine.

The event is sanctioned by AusTriathlon and has age restrictions. Visit the organization's website for the most recent information.

Australia Townsville City

Race information

Registration
100 km
Insomnia 100 Ultra (100 Km)
42 km
Insomnia 42 Marathon (42 Km)
Visit the organization's website for the most recent information.
Trail runs nearby

Cape Pallarenda Trail Run

Pallarenda - 8 km from Townsville City

The Cape Pallarenda Trail Run, part of Australia's largest Trail Running Series, takes place at Cape Pallarenda near Townsville, Queensland. This event offers four distances: 5km, 12km, 21km, and 42km, catering to a range of trail runners from juniors to experienced athletes. The course features div..

Castle Hill Trail Run

Belgian Gardens - 3 km from Townsville City

The Castle Hill Trail Run, held in Townsville, Queensland, offers an ideal introduction to trail running with three challenging courses: 3km for beginners and kids, 7km intermediate, and a tough 10km for experienced runners. The event takes place on Castle Hill, a popular local landmark featuring fl..

Elliot’s Revenge Trail Run

Alligator Creek - 22 km from Townsville City

Elliot’s Revenge Trail Run, held at Alligator Creek in Bowling Green Bay National Park near Townsville, Queensland, offers a scenic and challenging trail running experience. The event features three distances: 6km, 12km, and 21km, suitable for beginners to experienced runners. The course includes fa..

The Two Bays Trail Run

Nelly Bay - 12 km from Townsville City

The Two Bays Trail Run is a scenic trail running event held on Magnetic Island, Queensland, Australia. Participants can choose from 6km, 12km, or 21km courses that traverse tropical island landscapes featuring palm-fringed beaches, granite boulders, hoop pines, and coral reefs. The technical single-..