The Hennepin Hundred

OCT
3-4
2026
A point to point all trail ultramarathon along the Hennepin Canal State Trail offering 50k, 50 mile, 100 mile and a 100 mile relay each October.
3-4 Oct 2026
100 miles 50 miles 50 kilometers

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The Hennepin Hundred

The Hennepin Hundred is Illinois' only point to point, all trail ultramarathon held along the Hennepin Canal State Trail. The course runs from Sterling / Rock Falls, Illinois toward Colona, Illinois, and the event takes place on the first full weekend of October.

Distances offered:

  • 100 mile solo
  • 50 mile solo
  • 50k solo
  • 100 mile relay

The course is described as flat and fast and follows Illinois' longest multi-use trail. The route crosses historic locks and lift bridges and passes agricultural landscapes and small towns in northwest Illinois. The start area is on the Rock River and the finish is near the Mississippi River.

Race organization includes staffed aid stations and volunteer support; approximately 150 volunteers assist during the event. The Hennepin Hundred has been a Western States qualifying race since 2019. There is a monetary prize of $750 for breaking the 100 mile course record in both the male and female categories.

The event includes nighttime running along the canal trail and options for relay teams in addition to solo entries. Visit the organization's website for the most recent information.

100 mi
100-Mile Solo
100 mi
100 Mile Relay
50 mi
50-Mile Solo
50 km
50k Solo
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