Muddy Shamrock @ The Forge
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Event details
The Muddy Shamrock @ The Forge is scheduled for March 14, 2026 in Lemont, Illinois at The Forge: Lemont Quarries (227 Heritage Quarries Dr.). The event offers two trail distances with a common start and finish line. Registration is tiered and fees increase across four tiers; half marathon fees range from $60 to $85 and quarter marathon fees range from $45 to $65 depending on registration date. Packet pick-up is offered before race day at Naperville Running Company and Pollyanna Brewing. Onsite registration and packet pick-up are possible on race day if the event is not sold out; onsite payments are by online credit card only.
Course and logistics
The races run on single- and double-track mountain bike trails and some gravel trails around the Lemont Quarries. Surfaces include dirt, grass, rocks, mud, roots, and occasional stumps. The half marathon consists of two laps and the quarter marathon one lap, with total mileage close to:
- 13.1 +/- miles (Half Marathon)
- 6.6 +/- miles (Quarter Marathon)
The gravel sections are mostly flat; some trail sections are technical with short steep inclines and downhills. Trail running shoes are recommended. There will be one aid station with water and sports drink at the start of lap two for the half; participants should plan to carry their own hydration and fuel. Parking is available in Lots 1 or 2 after the second stop sign on the gravel road, nearest the bridges, packet pick-up, and start/finish area. Awards are given for overall, age-group, masters, and additional categories. Visit the organization's website for the most recent information.