West Macs Monster

MAY
14-16
2027
Multi-distance trail running festival on the Larapinta Trail near Alice Springs, held each May with races from 5 km to 231 km and qualifying requirements for ultramarathons.
14-16 May 2027
UTMB 50K/100K/100M ITRA 3–6 231 kilometers 128 kilometers 65 kilometers 25 kilometers 5 kilometers

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About the race

The Ekistica West Macs Monster is a multi-distance trail running festival on the Larapinta Trail through Tjoritja National Park near Alice Springs. It runs annually on the third weekend in May, with the 2027 dates listed as May 14–16, 2027.

Event distances offered include:

  • 5 km Tele-Monster
  • 25 km Simpsons Monster
  • 65 km Standley Monster
  • 128 km Ellery Monster
  • 231 km Sonder Monster

Ultra-distance entries require an eligible qualifying run; training runs are not accepted. Entries for each year open at 7pm on October 1 for the following year. All distances were sold out in 2026 and there were no waitlists; ticket transfers may be possible via a community transfers group. Volunteer registration opens on March 1, 2027.

The event acknowledges and pays respect to the Traditional Owners of the country the Larapinta Trail passes through, noting the ongoing connection that Western and Central Arrernte people hold to the land, sky and waters of the Tjoritja National Park and nearby sites. The festival states an inclusion policy welcoming people of all cultural backgrounds, genders, orientations and experience levels. Visit the organization's website for the most recent information.

231 km
Sonder Monster
128 km
Ellery Monster
65 km
Standley Monster
25 km
Simpsons Monster
5 km
Tele-Monster
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