Upcoming running race
18th Annual F^3 Lake Half Marathon & 5k
Jan 30, 2027 at 10:01 AM CST · Chicago, IL, 60614 · 13.1 Miles
About this race
18th Annual F^3 Lake Half Marathon & 5k
18th Annual F^3 Lake Half Marathon & 5k is scheduled for Jan 30, 2027 at 10:01 AM CST in Chicago, IL. The listed distance is 13.1 Miles, with a currently listed entry fee from $75.45. This listing was most recently checked against RunSignup data on July 23, 2026.
What to verify before registering
Use the official race page to confirm the start time, exact venue, entry fee, registration deadline, packet pickup, course surface, elevation, time limit, age rules, stroller or pet policy, parking, transfers, refunds, and any schedule changes. The organizer’s page is the final source for operational details.
Planning for a winter race in Chicago
January weather and course conditions can change quickly. Review the forecast and organizer updates close to race day, plan your clothing and hydration for the conditions, and allow extra arrival time for parking, restrooms, bib pickup, and the walk to the start area.
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