Helios 20 Hour Ultra

OCT
10-11
2026
Test your endurance at the inaugural HELIOS Ultra in the Southern Kettle Moraine Forest. Choose between 6, 12, or 20 hour timeframes as a solo runner or a relay team.
10-11 Oct 2026
12 Hour 20 Hour 6 Hour

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Trail Ultra in the Southern Kettle Moraine Forest

The HELIOS Ultra is an endurance event held in Eagle, Wisconsin, within the Southern Kettle Moraine Forest. This inaugural autumn run offers participants the opportunity to complete as many loops as possible within a chosen timeframe. The event takes place on the McMiller Trail system, where runners can choose from three different loop options measuring approximately 3 miles, 5 miles, or 6 miles.

The race features three primary time based categories:

  • 6 Hour Solo or Team Relay
  • 12 Hour Solo or Team Relay
  • 20 Hour Solo or Team Relay

Participants can compete as solo ultra runners or as part of a relay team consisting of up to four people. The event is capped at a total of 150 runners to maintain the quality of the race experience. The course is located at S104 W38754 County Rd NN in Eagle, providing access to the natural terrain of the state forest. Visit the organization's website for the most recent information.

12 Hour
20 Hour
6 Hour