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Hennepin Hundred

Oct 3, 2026
Sterling, IL
100M50M50K
Typical Weather
Sterling, IL · Oct 3
70°
High
45°
Low
10%
Precip

Based on data from station USC00116897 (18 mi away)

About This Race

Prepare for an unparalleled ultra-running experience at the Hennepin Hundred, set for October 3, 2026, in Sterling, IL. This event is Illinois' only point-to-point, all-trail ultramarathon, offering distances of 100M, 50M, and 50K. Runners will traverse the historic Hennepin Canal State Trail, a mostly flat and fast course primarily composed of rustic dirt, chip and seal, and crushed limestone, making it an ideal race for chasing a personal record or tackling your first ultra. The scenic journey unfolds across historic locks and lift bridges, past autumn cornfields, picturesque farms, and charming towns of northwest Illinois, with typical race day conditions seeing highs around 70F and lows near 45F, and only a 10% chance of precipitation.

The Hennepin Hundred is renowned for its exceptional runner support and vibrant atmosphere. Enthusiastic volunteers, many of whom are ultrarunners themselves, staff plentiful aid stations spaced roughly every 4 to 7 miles. These stations are celebrated for their amazing and diverse food offerings, including everything from pizza and pancakes to coffee and even a unique Jim Beam station, ensuring you stay fueled. For those undertaking the 100-mile challenge, the finish line in Colona, IL, awaits at the Colona Fire Department, which famously welcomes finishers with hot showers and cots. The 50-mile race concludes at picturesque Lock 17 near Wyanet, while the 50K offers a distinctive 5:00 PM start, allowing runners to experience the canal trail under a magnificent blanket of stars.

Starting from Sinnissippi Park in Sterling for the 100M and 50M distances, the course offers minimal elevation gain, promising a runnable challenge. Beyond the well-marked trails, the Hennepin Hundred fosters a strong sense of community, earning a reputation for its organization and supportive spirit, often awarding "ultra-virgin" shirts to those completing their first ultramarathon. With drop bag access at numerous aid stations and a generous cutoff time for the 100-mile distance to qualify for Western States, this race is truly designed for ultrarunners by ultrarunners.