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August 29, 2026

Midwest States 100

Westboro, WI
Distances: 100 Mile100K50k

About This Race

The Midwest States 100 is a rugged wilderness ultramarathon held in the Chequamegon-Nicolet National Forest of Wisconsin, primarily navigating the glaciated terrain of the iconic Ice Age Trail. Runners tackle a challenging 34-hour cutoff through dense forests and rocky paths, experiencing a remote, grassroots atmosphere that purposefully lacks cellular service. This event offers a back-to-basics adventure where the trail’s natural beauty is matched by its technical difficulty and a tight-knit community of participants.

What Makes It Unique

  • The 100K Decision Point: Upon reaching the 100-kilometer mark (which returns to the start/finish area), 100-mile entrants must decide whether to stop and be recorded as an official 100K finisher or head back out to complete the full 100-mile distance.
  • Earn Your Flannel: In a nod to local culture, runners who complete any distance of the race three times are awarded a custom Midwest States Flannel, which can be further customized with distance-specific iron-on chevrons.
  • Ice Age National Scenic Trail: The course utilizes a significant portion of one of only 11 National Scenic Trails in the U.S., taking runners through ancient landscapes featuring unique geological formations like kettles and moraines carved by glaciers.