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Chicago, IL

18th Annual F^3 Lake Half Marathon & 5k

  • Date
  • First start10:01 AM CST
  • Location1410 Special Olympics Drive, Chicago, IL 60614
  • DistancesHalf Marathon · 5K
  • SurfaceRoad
  • SwagWhere will you pick up your packet?

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Events, current fees, and scheduled price increases
EventDistanceStartCurrent feeNext increase
Half MarathonHalf Marathon10:01 AM CST$99$105 on
5k5K10:29 AM CST$65$69 on

Scouted from the official RunSignup listing. Fees shown exclude processing fees.Merit badges are detected from the organizer’s description. Dates, courses, and prices can change — confirm on the registration page.

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18th Annual F^3 Lake Half Marathon & 5k · Chicago, IL

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About 18th Annual F^3 Lake Half Marathon & 5k

The 18th Annual F^3 Lake Half Marathon & 5k is Chicago's Original Winter Half Marathon. Each year, thousands of runners flock to this community-built event, gathering in the warmth of Soldier Field's United Club before tackling wind & weather along a lakefront course that features splits every 5km. A must for anyone preparing for a spring marathon or just resolving to stay fit throughout the new year. F^3 sold out in 2016-2020 and 2023-present. Every registrant will once again receive one of our great hoodies and a medal! We will return to the warm confines of Soldier Field's United Club! The UC opens at 8 a.m. Gear check is available. The half marathon starts at 10:01 a.m. and consists of self-seeded waves in quick succession. The 5k is scheduled for 10:29 a.m. Courses close at 1:30 p.m. After the race, head to Weathermark Tavern for the afterparty! 1503 S. Michigan Ave . Free…

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