
HELIOS 6/12/20 HOUR ULTRA is an ultra and running race on October 9–10, 2027 in Eagle, WI, with entry fees from $50 to $90.
October 9th-10th, 2027 | Eagle, Wisconsin
6 / 12 / 20 Hour Ultra Run (Solo Runner or Relay team of up to 4)
Join us for a 6-, 12- or 20-Hour FALL Ultra in the Southern Kettle Moraine Forest. Complete as many loops as possible during your selected timeframe of 6, 12 or 20 hours.
This race is capped at 150 runners. Signup now before it sells out!
The goal of this race is to complete as many loops as possible during your selected timeframe of 6, 12 or 20 hours. You may race as a solo ultra runner or as a relay team of up to 4 people. You will choose between three of the McMiller Trail loops - approximately 3, 5 or 6 miles.
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
63°
Typical Low
42°
Chance of Rain
36%
Based on US Climate Normals data from Sullivan 3se, 7 mi from the venue.
Population
2,016
as of 2023
City Elevation
933 ft
Nearest Airport
MKE
General Mitchell International Airport · 29 mi
Time Zone
Central Time
From Endurance Grid
A small town race. Lodging near the start could be limited, so book early.
Every finish line starts with a single decision. Claim your spot at HELIOS 6/12/20 HOUR ULTRA, put it on the calendar, and turn “someday” into a start date.
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Days to train
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This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
An ultramarathon is anything beyond the standard marathon — 50K, 50-mile, 100K, 100-mile, and timed events. Crossing the line is less about speed and more about not quitting.
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
HELIOS 6/12/20 HOUR ULTRA
Oct 9, 2027