Logo

The Hennepin Hundred

Sterling, United States • 4-5 Oct 2025

The Hennepin Hundred is Illinois' only point-to-point, all-trail ultramarathon, taking place along the scenic Hennepin Canal State Trail. Scheduled for October 4-5, 2025, this event features multiple race distances, including a 100-mile, 50-mile, and 50K, making it suitable for both seasoned ultrarunners and newcomers. The flat and fast course offers a unique opportunity to experience the beauty of northwest Illinois while aiming for personal records. Participants can enjoy well-stocked aid stations, race swag, and the chance to qualify for the prestigious Western States 100. More details can be found on their official website. Visit the organization's website for the most recent information.

United States Illinois Sterling

Race information

Website Registration
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

Pinetum Mind Games Endurance Event

Dixon - 11 mi from Sterling

The Pinetum Mind Games Endurance Event is an exciting running challenge held at Lowell Park in Dixon, IL. Participants can choose to compete in 6, 12, or 24-hour formats, either solo or as part of a relay team. The course consists of a .411-mile loop designed to test mental and physical endurance, e..

Chupacabra Trail Races

Dixon - 11 mi from Sterling

The Chupacabra Trail Races take place in Dixon, Illinois, featuring night trail running on a 5-mile loop course composed of grass, gravel, dirt, and 30% single track. Participants can choose from distances of 5, 10, or 15 miles, or join a three-person relay team. The race starts just before sunset,..

Gristmill Grind 10K

Franklin Grove - 20 mi from Sterling

The Gristmill Grind 10K is an annual trail race held at Franklin Creek State Parks Natural Area, known for its challenging terrain and scenic views. Scheduled for August 30, 2025, this event features a 10K race with significant elevation changes and creek crossings, as well as a 1-mile walk. Partici..

Hindsight Ultra Trail Runs

Dixon - 11 mi from Sterling

Hindsight Ultra Trail Runs, held in Dixon, Illinois, offers a grassroots ultra running experience with distances of 25K, 50K, 100K, and 100 miles. The course features a 7.85-mile loop combining roughly 50% singletrack, 30% grassy meadows, and 20% gravel paths, with about 6,200 feet of elevation gain..

Skunk Ape 806/314 Trail Race

Dixon - 11 mi from Sterling

The Skunk Ape 806/314 Trail Race, held at Lowell Park in Dixon, Illinois, offers challenging trail running events on March 21, 2026. Participants can choose between a 33.75-mile race to be completed in 8 hours and 6 minutes, a 13.5-mile race with a 3 hour and 14 minute limit, or a relay option. The..