Kettle Moraine 100, 100k, 50k and 38 mile 

“Racing in the Southern Kettles since 1996”

June 14th, 2025

Registration opens 11 am Central time on January 1st, 2025

We sell out fast. Get on waitlist if sold out and we will do our best to get you in.

Registration will be on Ultrasignup

On 12/20/24 we sent out early invites for runners that rolled over from 2024 to 2025. These invites must be used by December 31st or they expire.

Late rollover runners that volunteered

These are the runners that withdrew late, and volunteered at an assigned location to be eligible for a rollover. We sent your invite and credit on 12/20/2024. You must register before January 1st

If you do not see your name, forward me the email confirmation that you set up volunteering with Volunteer coordinator.

It is very helpful to us in passing out volunteer credits & rollovers if you officially register as a late rollover. When you do that it puts your name on the spreadsheet for us to pass out the credits the next year. If you do not follow those directions you risk us not having records.

Volunteer incentives that have been credited to the accounts of Kettle Moraine 100 volunteers that officially signed up and volunteered.

2023 Race photos By Jenny Thorsen

2023 Race photos by Misty DAwn

NEW FOR 2024

New in 2025 - prize money for top 100 mile runners!

100 mile race 1st overall Male & Female win $250.00

100 mile race- new course record set for either the male or female record win $250.00

Registration opens on January 1st at 11 am Central Time.

We have filled up within a few minutes the past few years.

2021, 2022 & 2023, 2024- 100 mile race/100k/50k filled immediatly upon registration opening

Hop on waitlist early for a chance to get into race.

We will send you an invite when a spot opens up and you can accept it or deny it. Estimate of going through 50 to 80 on waitlist

This classic ultra marathon was started in 1996 by Kevin and Kris Setnes. They RD'd for 6 years, then Tim "Timo" Yanacheck and Jason Dorgan Co-RD'd until 2018. These four ultra running pioneers built traditions in Kettle Moraine 100 that will carry on for many years to come. Their work is why so many of us are trail and ultra-marathoners. Thank you Kevin, Kris, Timo and Jason for all you have done. You are greatly admired, respected and appreciated by the trail and ultra community.

~Michele Hartwig, Current Race Director