16 weeks out
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18th Annual F^3 Lake Half Marathon & 5k
Saturday, January 30, 2027Chicago, IL5K – Half Marathon
The F^3 Lake Half Marathon & 5k is Chicago's original winter running tradition, drawing thousands of participants to the lakefront each year. Runners gather in the comfort of Soldier Field's United Club before heading out to brave the elements on a scenic course. Designed as a perfect tune-up for spring marathon training, the event features convenient 5km splits to help you track your progress. The race is known for its community-focused atmosphere and high demand, having sold out consistently in recent years. After crossing the finish line, participants can celebrate at the official afterparty held at Weathermark Tavern.
Races
Who's running this
View start listYou're early — the field is wide open
Nobody on the start list yet. Grab a bib, or share the race with someone who'd run it with you.
Frequently asked questions
Location
DirectionsSoldier Field, 1410 Special Olympics Drive, Chicago, IL, 60614, US
