September 12, 2026
The 2026 race is sold out. Thank you.
Proud to be named
BEST RACE 2022 and 2023
by Chicago Area Runners Association
We're Back for
GEM7
Winner of CARA Race of the Year for 3 of the last 4 years! the 2026 Hidden Gem Half Marathon will take place on Saturday, September 12th, 2026. For those of you running The Gem for the first time, we’re happy you’re here and hope you have a wonderful experience. For our returning runners, welcome back home to Flossmoor!
The Hidden Gem is a pure road race with minimal backtracks through the distinct neighborhoods of Flossmoor, IL. It’s an ideal race for both the serious and casual runner. Anyone training for the Chicago Marathon will appreciate the September timing, while those with more modest goals are sure to enjoy an entertaining run through beautiful, shady neighborhoods with cheering residents lining the route.
What else should you know about The Gem?
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Easy to get to, < 30 miles south of Chicago
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Plenty of free parking
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METRA train line service to the race
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Free beer!
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Great runner swag and medals
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One of Illinois' largest cash prize pools
The Hidden Gem shines a bright light on Chicago's South Suburbs, and fosters a sense of pride in our community. We hope you discover the energy and community spirit alive in Flossmoor … thank you for being a part of The Gem, and welcome home.
BUZZ ABOUT THE GEM
Top 13 Half Marathon
in the U.S. to set a PR
Today's run was amazing! Great course and even better people. Throughout the entire race people were cheering us on, from the students at HF to the residents sitting out on the lawn everyone was cheering. I hope this event happens again next year. I will be there!
The Name Says it All
SEE THE GEM
OUR SPONSORS
