Kettle Moraine

JUN
13-14
2026
Experience one of the oldest 100 mile races in the US on the scenic Ice Age Trail. This all-trail event offers distances from 38 miles to a 100 mile Western States qualifier in the heart of Wisconsin.
13-14 Jun 2026
100 miles 100 kilometers 38 miles 50 kilometers

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Kettle Moraine

The Kettle Moraine event is an ultra marathon held in LaGrange, Wisconsin. Established in 1996, it is recognized as one of the oldest 100 mile races in the United States. The course consists of 100% trail, with the exception of several road crossings. A significant portion of the route, approximately 65 miles, takes place on the Wisconsin Ice Age Trail.

Participants can choose from several distance options:

  • 100 Miler
  • 100K
  • 50K
  • 38 Miler
  • 100M Relay (four-person team)

Entry into the event is managed through a lottery system held in December, with a subsequent waitlist for those not selected. Priority registration is offered to individuals who volunteered at the previous year's event. A specific requirement for all participants is the completion of 8 hours of volunteer service within their local community, such as trail maintenance or assisting at other races.

The 100 Miler distance serves as a qualifying race for the Western States 100, provided runners finish within a 30-hour time limit. Every vehicle entering the area is required to display a Wisconsin IDNR parking sticker; a pass is included with the race entry and distributed during packet pickup. The event does not offer refunds or transfers, though specific rollover credits are available for those who cancel within designated timeframes before the race. Visit the organization's website for the most recent information.

100 mi
100 Miler
100 mi
100m Relay
100 km
100k
38 mi
38 Miler
50 km
50k