The Hidden Gem Half Marathon 2026

Flossmoor, IL

Sat, Sep 12, 2026

In 64 days · Sat, Sep 12, 2026

Save

Don't let race day sneak up

One email during race week. That's it.

When

Saturday, September 12th, 2026

Where

2800 Flossmoor Rd, Flossmoor IL

Distance

Half

About this race

The Gem is BACK!

September 12, 2026

Flossmoor, IL

CARA 2025 RACE OF THE YEAR

REGISTRATION OPENS APRIL 1

Please Note: Runners must finish the race in three hours (No Walkers).

More information:

HERE

Course map

Train with a club

Run clubs near Flossmoor to train with before race day.

Lyons Run Club

Lyons, IL · 1.2k followers

Viento Little Village Run Club

Chicago, IL · 2k followers

3RUN2 / Three Run Two

Chicago, IL · 15.2k followers

Chicago Road Runners

Chicago, IL

See all run clubs near Flossmoor →

Suggested Races

Diplo's Run Club Chicago

Chicago, IL

Saturday, October 3rd, 2026

Featured

Code:FTR10

View details for race Diplo's Run Club Chicago

Want to feature your race?

Get your race seen first by thousands of runners

Feature My Race

Learn how to feature your race

Run to Pub Marathon Volunteer

Tinley Park, IL

Saturday, October 24th, 2026

View details for race Run to Pub Marathon Volunteer

Run to Pub Fall Marathon Relay

Tinley Park, IL

Saturday, October 24th, 2026

View details for race Run to Pub Fall Marathon Relay

Run Like a Diva

Chicago , IL

Saturday, September 19th, 2026

Half

View details for race Run Like a Diva

Divas Chicago Half Marathon & 5k

Chicago, IL

Saturday, September 19th, 2026

Half

View details for race Divas Chicago Half Marathon & 5k

13th Annual Head for the Cure 5K - Chicago

Chicago, IL

Sunday, October 4th, 2026

View details for race 13th Annual Head for the Cure 5K - Chicago

2026 - 2nd Annual HBCU Run & Brunch

Chicago, IL

Saturday, September 19th, 2026

10K

View details for race 2026 - 2nd Annual HBCU Run & Brunch

Run with the Nuns 2026

Lemont, IL

Sunday, October 18th, 2026

View details for race Run with the Nuns 2026

NCSL Fun Run 5K

Chicago, IL

Tuesday, July 28th, 2026

View details for race NCSL Fun Run 5K

Volunteer Registration - Gospel Run 2026

Chicago, IL

Saturday, September 12th, 2026

View details for race Volunteer Registration - Gospel Run 2026

Chicago Gospel Run 2026

Chicago, IL

Saturday, September 12th, 2026

View details for race Chicago Gospel Run 2026

There Is A Will, There Is A Way 5K

Downers Grove, IL

Saturday, September 5th, 2026

Trail

View details for race There Is A Will, There Is A Way 5K

Our Fallen Hero 5K Run/Walk in Memory of PFC Aa...

Mokena, IL

Saturday, September 26th, 2026

View details for race Our Fallen Hero 5K Run/Walk in Memory of PFC Aaron Toppen

St. Monica Summerfest 5K Run/Walk and Mini Must...

Chicago, IL

Saturday, August 22nd, 2026

View details for race St. Monica Summerfest 5K Run/Walk and Mini Mustang Dash

The "Oui" Run 5K

Chicago, IL

Sunday, September 27th, 2026

View details for race The "Oui" Run 5K

Dyer Fitness Fest 5K

Dyer, IN

Saturday, September 12th, 2026

View details for race Dyer Fitness Fest 5K

Chasing Our Dreams

Palos Heights, IL

Saturday, October 3rd, 2026

View details for race Chasing Our Dreams

6th Annual Fox Trot 5K

Bedford Park, IL

Saturday, June 12th, 2027

View details for race 6th Annual Fox Trot 5K

CHICAGO TRAIL RUNNING FESTIVAL

Beecher, IL

Saturday, September 12th, 2026

Trail

View details for race CHICAGO TRAIL RUNNING FESTIVAL

Boo Island - 5K Charity Run/Walk

Blue Island, IL

Saturday, October 3rd, 2026

Trail

View details for race Boo Island - 5K Charity Run/Walk

Organize this race?

Claim it free to manage your listing — and get it featured for free, while spots last.

Claim

The Hidden Gem Half Marathon 2026

Course map

Suggested Races

Find The Run Newsletter