Muddy Shamrock @ The Forge
The Muddy Shamrock offers a rugged trail race through wooded single and double-track at The Forge.
Race Date
Mar 13, 2027
Location
Lemont, IL
Quick facts
- Date
- Saturday, March 13, 2027
- Location
- Lemont, Illinois
- Distance
- Half marathon (13.1 mi) + 6.5 Miles
- Course
- Loop Course
- Terrain
- Mixed
- USATF certified
- Not listed
Highlights
Good For
Atmosphere
Course
The Experience
The Muddy Shamrock, now in its 6th year, is an early-season trail race that challenges runners with woods, dirt, mud, and roots. Held at The Forge in Lemont, Illinois, the course winds through single and double-track mountain bike trails and gravel paths, offering scenic views of the historic Lemont Quarries.
Runners can expect a rugged, adventurous experience on this mixed-terrain course. The typical race-day weather in this region can be brisk, with temperatures ranging from 32–52°F, making for a potentially chilly but invigorating run.
While specific finisher numbers and geographic draw are not detailed, the race has seen a steady field trend. Participants receive a shirt as part of their race swag, and the event promises a unique test of trail running skill.
Race-provided description
2026 Muddy Shamrock Results Woods, dirt, mud, roots, and maybe some other adventurous trail stuff will be experienced at the 6th annual Muddy Shamrock Trail Races @ The Forge. And now that we've earned the 4th leaf in our clover, the race is now named the MUDDY SHAMROCK! This early-season trail race will be run on wooded single & double-track trails with awesome scenery around the historic Lemont Quarries. Both races will traverse the single-track MTB trails within the woods and some gravel trails throughout the Forge and adjoining trail systems.
Logistics
Race Day
Saturday, March 13, 2027
Start Time
9:00 AM
Giveaway
Shirt
Start Location
227 Heritage Quarries Dr., Lemont, IL, 60439
Course Info
Course Type
Loop Course
Terrain
mixed
Scenery
Forest, Park
Surface
Dirt Trail
Difficulty
Rolling Hills
Net Drop/km
0 m (Flat)
Separation
0.0%
Also Offers
Course Map
Quality Score
first year
no finisher counts yet
small race — neutral
needs a few years of results
3 timing sources · 10 photos
no finisher data yet
no winner time yet
typical high 52°F
Race Day Weather
5-year historical avgStart (Low)
32°
Afternoon (High)
52°
Ideal racing weather — cool and comfortable
0.1"
Precipitation
14 mph
Wind
66%
Humidity
Race Photos
Frequently asked
When is the Muddy Shamrock @ The Forge?
The Muddy Shamrock @ The Forge is held on Saturday, March 13, 2027, starting at 9:00 AM.
Where does the Muddy Shamrock @ The Forge take place?
It takes place in Lemont, Illinois.
What distances does the Muddy Shamrock @ The Forge offer?
The half marathon (13.1 miles), plus 6.5 Miles.
Is the Muddy Shamrock @ The Forge course flat and good for a PR?
The Muddy Shamrock @ The Forge is a rolling hills, loop course course.
HalfRuns editorial — independent, no paid placement.
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