Helios 20 Hour Ultra

Eagle, United States • 10-11 Oct 2026

HELIOS 6/12/20 HOUR ULTRA

HELIOS is a timed ultrarun set for October 10 to October 11, 2026, in the Southern Kettle Moraine Forest near Eagle, Wisconsin. The event offers three time formats and allows competition as a solo runner or as a relay team of up to four people. The field is limited to 150 runners.

Participants aim to complete as many loops as possible within their chosen timeframe. The course uses three McMiller Trail loop options with approximate loop lengths of 3 miles, 5 miles, and 6 miles. Runners select one loop length for their efforts and track laps during the event.

Format options:

  • 6 Hour
  • 12 Hour
  • 20 Hour

The event location is listed as S104 W38754 County Rd NN, Eagle, WI 53119. The description notes this is the inaugural fall edition using the McMiller Trail loops. Information in this description reflects course format, location, capacity, and the solo or team entry structure. Visit the organization's website for the most recent information.

Race information

20 Hour
12 Hour
6 Hour
Visit the organization's website for the most recent information.
Trail runs nearby

Trail 5K and a children's 1/4 mile at Kishwauketoe Nature Center in Williams Bay. The grass trail course passes through hills, woods and prairie, includes a water stop, parking across the street, and awards for top finishers.

The Kishwauketoe 5K will take place in Williams Bay on Saturday 4 July 2026. You can run 3 miles.

A prairie trail run and walk at Lapham Peak State Forest in Delafield supporting prairie management. The event features grass hiking and mountain bike trails, shirts for the first 100 participants, awards for run winners, and on-site regist..

A mixed relay in Brookfield with four 3K legs per team and an optional 6K two person relay. Entry is $25 or $20 for USATF members and proceeds support the Brookfield Central Cross Country team.

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