Gristmill Grind 10K

Franklin Grove, United States • 5 Sep 2026

GristMill Grind 5K/10K Adventure

The GristMill Grind takes place at Franklin Creek State Natural Area in Franklin Grove, IL on Saturday, September 5, 2026. The event offers two course options and permits running, walking, or rucking.

The course is a technical trail route with multiple hills and an average elevation gain of about 100 ft per mile. Terrain features include ravines, limestone bluffs, forested canopy, sections of gravel road, and creek crossings. The 10K crosses Franklin Creek five times while the 5K crosses twice.

Distances

  • 10K
  • 5K

Water is available at the start and finish area and at the midrace shelter on the 10K course. Participants must bring a disposable cup or a hydration bladder because cups will not be provided. T shirts are available for purchase for $20 and are guaranteed for registrations completed before August 15, 2026.

Entry periods and fees listed by the organizer include an early registration window with a lower fee, a later preevent fee, and a race day fee. Proceeds support the Franklin Creek Conservation Association to fund park programs, expansion, and improvements. Awards are presented to the top three male and female finishers in each distance and to ruck competitors. Visit the organization's website for the most recent information.

Race information

10 km
10k
5 km
Visit the organization's website for the most recent information.
Trail runs nearby

A multiwave obstacle course at Byron Motosports Park offering 10K, 5K, ruck, and kids divisions, with Special Forces and Endurance competitive formats and team entry packs available.

A trail 5K at Byron Forest Preserve with chip timing and awards by age group, plus a 1 mile Fun Run with a participation medal. Parking and indoor restrooms are available onsite.

An overnight loop endurance event at Lowell Park in Dixon, IL where participants repeat a .411 mile paved loop for 6, 12, or 24 hours. Solo and three person relay options are available and the event is self supported.

Night trail races in Dixon Illinois on an approximate 5 mile loop with solo distances and a three person relay, single aid station, post race snack, and on site tees for all participants.

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