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Chicago Half Marathons

Trail Half Marathon & Quarter Marathon

The Forge Half Marathon & Quarter Marathon

Sat, March 18th, 2023, 7:00 am

The Forge Trail Half Marathon & Quarter Marathon is one of the few long-distance races run on trails in the Chicago area. The race will take place on the gravel/crushed limestone and single-track mountain bike trails throughout The Forge: Lemont Quarries Adventure Park and adjoining Heritage Quarries Recreation Area and I&M Canal trails.

Lemont Quarries, 1001 Main Street Lemont, IL, 60439


Sat, March 18th, 2023, 7:00 am
Tier 1:
$55 (Half) / $35 (Quarter)
Tier 2 :
$65 (Half) / $45 (Quarter)
Tier 3:
$75 (Half) / $55 (Quarter)

This Event Has Passed

Registration Includes:

Entry to the race, electronically timed results, earned overall and age group awards, a cool Forge shirt and post-race party with food, beer, and other beverages.

Race Information

As an early-season event held in March, we anticipate variable weather, creating more adventure in the race. The event will proceed in all weather conditions, other than unsafe situations, such as lightning. Athletes will experience a unique long-distance trail race with a cool course, awesome scenery, and a great venue based at The Mount, the stage and entertainment center of The Forge: Lemont Quarries.

Course Information

The Forge Trail Half Marathon and Quarter Marathon traverses the wide gravel trails and single-track MTB trails throughout The Forge and adjoining trails systems.

The courses will be developed based on trail conditions. Runners can expect a similar course as 2022, with a common start / finish line on the lawn in The Mount area of the Forge, 2 laps for the Half and 1 lap for the Quarter. Total mileage will be ~ 13 +/- miles for the Half and approximately 6.5 +/- miles for the Quarter, but it's a trail and we don't want to do anything funky to make it perfect distance.

The courses will be run on a combination of gravel, crushed limestone and MTB single-track trails.  The gravel is mostly flat.  The MTB, single-track sections have variable terrain and surfaces ranging from dirt, grass, rocks, mud, more rocks, roots, stumps, Sasquatch, etc. There will be a few spots that are technical, with a few short but steep inclines and downhills.

Trail running shoes are recommended.

Aid stations may be limited.  Please plan on carrying your own hydration and fuel.

Course Map

This map shows the 2022 Half Marathon course. The 2023 course for both the half and quarter marathon will likely be adjusted, as we are always developing new trails that can be used for the race.

The Forge Trail Half Marathon Map 


Tier 1 (First 100 Registered)

$55 (Half) / $35 (Quarter)

Tier 2 (101 – 200)

$65 (Half) / $45 (Quarter)

Tier 3 (201 – 400)

$75 (Half) / $55 (Quarter)

Race Cap is 400


Race entry fees include:

  • entry to the race
  • meticulously maintained trails unique to The Forge
  • electronically timed results
  • earned overall and age group awards
  • a cool Forge long sleeve cotton shirt
  • swag
  • post-race party with food, beer, and other beverages


Online registration closes on Friday, March 17th, 2023.

In-person registration will be available at packet pick-up and race day, if the event is not sold out.


Click here to REGISTER


Use these directions for Packet Pick-Up and Race Day


Use Lots 1 or 2 after the 2nd stop sign on the gravel road. They are the closest to the bridges to enter The Forge, packet pick-up, and the common start and finish line.

Packet Pick-Up (Preliminary)

Thursday March 16

Noon – 6:00 PM

The Forge: Lemont Quarries

at The Foundry


Friday March 17

Noon - 6:00 PM

The Forge: Lemont Quarries

at The Foundry


Race Day

Saturday March 18

6:30 AM – 7:30 AM

The Forge: Lemont Quarries

at The Foundry

Race Day Schedule

6:00 AM –                           Parking Opens

6:30 AM – 7:30 AM –      Race Day Packet Pick-Up & Registration Open

7:35 AM – 7:50 AM –       Pre-Race Line-Up

7:50 AM –                           Course Talk / Briefing

7:55 AM –                           National Anthem

8:00 AM --                          Half Marathon Race Start

~ 8:10 AM -                        Quarter Marathon Race Start

8:45 AM -                           Post Race Food / Beverage Available

~10:00 AM                          Awards Ceremony


1st – 3rd Overall Male and Female

1st Overall Male and Female Masters (Age 40+)

1st Overall Male and Female Lemont Resident

Mr. and Ms. Mid Pack (Athlete that finishes in the exact middle of the pack in their gender by placement)

1st – 3rd 10-Year Male & Female Age Groups from < 20 – Age 70+ (Examples: Male 30-39, Female 40-49, Female <20)

Additional awards, prizes and raffles will be offered and announced before the race!

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