The Hennepin Hundred

Sterling, United States • 3-4 Oct 2026

Overview

The Hennepin Hundred is a point-to-point, all-trail ultramarathon in northwest Illinois. The course runs from Sterling to Colona along the Hennepin Canal State Trail, a multi-use trail that the event follows for much of its length. The organizer describes the course as flat and notes scenery such as canal locks, farms, and small towns along the route. The race is listed as a Western States 100 qualifying event with a 30-hour overall cutoff for qualifying.

Distances

  • 100 Miler
  • 100 mile team relay
  • 50 Miler
  • 50K

Logistics and services

Aid stations are located approximately every 3-7 miles and are fully stocked. Bus service is provided from finish-line parking areas to the start line for a fee of $10. Volunteers and aid station captains receive entry credits toward Ornery Mule Racing events and other volunteer incentives. Finisher items and race swag vary by distance: 100-mile finishers receive a finisher flannel and a belt buckle; 50-mile and 50K finishers receive shirts and medals; first-time finishers at each distance may receive an "Ultra Virgin No more" shirt.

Registration and entry policies

Registration closes on Fri, Sep 25. The event offers rollover and credit options instead of refunds, including a no-cost rollover if requested by 70 days before the event and a 50% event credit option until 25 days before the event. No refunds are offered. Visit the organization's website for the most recent information.

Race information

100 mi
100 Mile Team Relay
100 mi
100 Miler
50 mi
50 Miler
50 km
50k
Visit the organization's website for the most recent information.
Trail runs nearby

Take on the Skunk Ape 806 314 Trail Race at Lowell Park with 33.75 mile and 13.5 mile solo options or a team 806 relay. Alternate wooded loops, enjoy hearty aid station fare and finisher swag, and chase podium awards and great camaraderie.

Run the GristMill Grind on September 5, 2026 at Franklin Creek State Natural Area, a hilly technical trail offering 5K and 10K routes through ravines, limestone bluffs, springs and creek crossings. Proceeds support park conservation.