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Trail Running Calendar near Mastodon Lake 2026-2027

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Explore the top trail runs near Mastodon Lake for 2026-2027! We've gathered 19 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

November 2026
Trail races at The Forge in Lemont with 10K, 20K, 30K and 60K courses on single and double track plus gravel near the Lemont Quarries.
A scenic 5K in Deer Grove on November 14, 2026 that welcomes runners, walkers and canicross teams while raising funds for a local scholarship.
Trail races at Wolf Road Woods on November 21, 2026 with 8 mile (two loops) and 4 mile (one loop) options, on trail surfaces with post race food, drink, and awards.
A chip timed 2.5 mile cross country Turkey Trot in Orland Park on Thanksgiving morning, with race shirts, a raffle, and prize turkeys for top finishers.
January 2027
A winter trail series at Dick Young Forest Preserve in Batavia featuring 5K, 8K, and 10K races on separate dates in early 2027, with combined registration and a series swag reward program.
February 2027
Trail races at Oakhurst Forest Preserve in Aurora, Illinois, the series includes 5K, 8K, and 10K events in early 2027 with a single registration and series swag rewards; the 8K fee is $65.00.
March 2027
Trail races at The Forge in Lemont with wooded single and double track trails, mud, roots, and gravel loops.
A 10K trail race at Hickory Knolls Discovery Center in St. Charles, IL with a $70 entry fee. The race is part of a winter series that also includes a 5K and 8K and uses a single registration page.
April 2027
A scenic 5K run/walk at Lake Katherine Nature Center on April 10, 2027 with lakeside trails, wildlife viewing, and proceeds supporting conservation and education.
Looped trail event at Deer Grove Forest Preserve offering 5.5 mile loops, multiple ultradistances, a single aid station at start finish, and inclusion-focused entry policies.
May 2027
A flat out and back half marathon and 10K on the limestone Great Western Trail organized by Fox River Trail Runners with proceeds for local mental health charities.
Trail marathon and 10 mile on Sag Valley Trail through Cap Sauers Nature Preserve with wide horse trail, multiple aid stations, and notable elevation.
Timed trail endurance races in Willow Springs offering 7 hour and 11 hour formats on a four mile loop through Wolf Road Woods.
Chip-timed 10K at The Forge Lemont Quarries on May 16, 2027, on mostly crushed limestone trails with quarry views and overall plus age-group awards.
June 2027
Trail races at Waubonsee Community College on June 12, 2027 featuring chip timed 5K and 10K options, packet pickup choices, live results, and awards for the fastest female and male finishers.
August 2027
Community cross country event in Mount Prospect offering 1, 2 and 3 mile races to raise funds for Holiday Heroes, with professional timing and awards.
September 2027
Both in person and virtual races in Wheaton, IL on September 11, 2027 offer half marathon and 10K distances with separate registration windows.
A family-focused 5K at Danada Forest Preserve in Wheaton supporting Inside Out Club youth programs, with team and age-group awards plus a kids fun run.
October 2027
Trail ultraraces in Willow Springs, IL on Oct 23, 2027 offering runnable single track loops at 50K, 25K and a 5 Miler with aid stations and prize divisions.
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