Thin Mint Sprint 2026
Decision scores
Six 0–100 scores telling you, at a glance, who this race is for.
Best for
About the Race
Join us for the 22nd Annual Thin Mint Sprint!! Get ready to lace up your running shoes because the Fox River Grove Memorial Library Running Club is back with an exhilarating in-person race! This year, we're bringing back the timed 5K fun run/walk along the stunning Fox River, as well as a 1-mile walk/run option. Mark your calendars for Saturday, September 12, and head to Lions Park for an epic day of racing and community celebration. And don't forget about the post-race party – it's going to ...
Course Profile
Course profile data unavailable for this race.
Course features
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Vibe & community
History & past results
Past finisher times and year-over-year participation will appear here once the organizer publishes them.
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Common questions
How hard is the Thin Mint Sprint 2026 5K?
We don't have a verified elevation profile yet — check the organizer's course map for the climb breakdown.
What should I wear?
Dress for ~10°F warmer than the standing temperature once you start running. Throwaway long-sleeve at the start, gloves and a hat for sub-50°F mornings, singlet plus visor when it climbs above 60°F. The race-day forecast above is the source of truth closer to the date.
When does it sell out?
No published deadline. Most races raise the entry fee in tiers and can sell out without warning — sign up early if you're committed.
Similar races worth a look
- Same distance, same month: Best 5K races in September
- Same distance, statewide: All 5K races in Illinois
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