RunRace USA › Illinois › The Hidden Gem Half Marathon 2026
The Hidden Gem Half Marathon 2026
Flossmoor, Illinois · Saturday, September 12, 2026 · Half Marathon
Official race page & registration ↗- Date
- Saturday, September 12, 2026
- Location
- Flossmoor, Illinois
- Distances
- Half Marathon
Listing from the 2026 race calendar, refreshed nightly. Details can change: confirm date and entry on the official race page before travelling. Spot an error? Tell us here.
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See every race on the Illinois calendar, or use the Race Finder for maps and filters.