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Muddy Shamrock @ The Forge

Name: Muddy Shamrock @ The Forge
Start: 2026-03-14
End: 2026-03-14
Location: Lemont

Lemont, United States • 14 Mar 2026

The Muddy Shamrock @ The Forge is an annual trail running event held in Lemont, Illinois, featuring a Trail Half Marathon (approximately 13.1 miles) and a Trail Quarter Marathon (about 6.6 miles). The race courses wind through wooded single and double-track mountain bike trails and gravel paths around the scenic historic Lemont Quarries at The Forge. Participants encounter varied terrain including dirt, mud, rocks, roots, and some technical sections with short steep inclines and declines. The event offers chip timing, age group awards, a commemorative T-shirt, and a festive post-race party with food, beer, and music. Trail running shoes are recommended for this adventurous early-season race. Visit the organization's website for the most recent information.

United States Illinois Lemont

Race information

Website

13 mi

Trail Half Marathon

6 mi

Trail Quarter Marathon

Visit the organization's website for the most recent information.

Trail runs nearby

Sunday Aug 24

Summer Trail Classic

Hoffman Estates - 27 mi from Lemont

4 mi

9 mi

13 mi

The Summer Trail Classic is a trail running event held at Paul Douglas Forest Preserve in Hoffman Estates, Illinois. It offers three race distances: approximately 4 miles, 9.5 miles, and 13 miles, featuring twisting single-track trails that provide a true trail running experience. The event is part..

Saturday Sep 6

Naperville Trails Half Marathon

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10 km

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Sunday Sep 14

Timely Nonsense - Chicago, IL

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Backyard Ultra

6 hr

12 hr

Timely Nonsense is a unique timed running event held in Chicago, IL, at a 58-acre park located at California and Montrose. Participants run a 0.75-mile paved loop for either 6 or 12 hours, with an aid station at the start/finish offering typical ultrarunning fare and additional vendor treats like ho..

Saturday Oct 25

Fancy Nonsense 25K/50K

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5 mi

25 km

50 km

The Fancy Nonsense 25K/50K is a whimsical ultramarathon held in the Palos Trail System near Willow Springs and Lemont, Illinois, about 20 minutes from downtown Chicago. Runners can choose from 25K, 50K, or 5-mile distances on a mostly single-track, 5.5-mile loop course that starts and finishes at Re..

Sunday Nov 9

Fast Track Cross Country

Schaumburg - 25 mi from Lemont

3 mi

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Saturday Nov 15

The Forge Trail Run Festival

The Forge Trail Run Festival, held in Lemont, Illinois, offers a challenging late-fall trail running experience with distances of 10K, 20K (half marathon), 30K, and 60K. The courses start and finish at The Forge and wind through single and double-track trails in the woods, gravel paths, and around t..