Logo

Muddy Shamrock @ The Forge

Lemont, United States • 14 Mar 2026

The Muddy Shamrock @ The Forge is a 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 takes place on wooded single and double-track mountain bike trails, as well as gravel paths around the scenic historic Lemont Quarries. Participants encounter varied terrain including dirt, mud, roots, rocks, and some technical sections with short steep inclines and declines. The event offers chip-timed results, age group awards, 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

Run The Rails

Elburn - 28 mi from Lemont

The Run The Rails will take place in Elburn on Saturday 16 August 2025. You can run between 4 and 7 miles.

Summer Trail Classic

Hoffman Estates - 27 mi from Lemont

The Summer Trail Classic will take place in Hoffman Estates on Sunday 24 August 2025. You can run between 4 and 13 miles.

Naperville Trails Half Marathon

Wheaton - 14 mi from Lemont

The Naperville Trails Half Marathon & 10K is an annual running event held in Wheaton, Illinois, set for September 6, 2025. Participants can choose between a USATF-certified half marathon or 10K distance, both featuring a flat and fast course that winds through the scenic Danada Forest Preserve on cr..

Timely Nonsense - Chicago, IL

Chicago - 23 mi from Lemont

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..

Palos Park Spooky Shuffle

Palos Park - 8 mi from Lemont

The Palos Park Spooky Shuffle will take place in Palos Park on Saturday 18 October 2025. You can run between 5 and 10 kilometers.

Fancy Nonsense 25K/50K

Willow Springs - 8 mi from Lemont

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 encourages joy and imagin..