F^3 Lake Half Marathon
F^3 Lake Half Marathon is a half marathon and 5K held in Chicago, US, in January. It is a winter race along the city's lakefront, and the course is mostly flat and quick, which suits runners chasing a fast time in cold conditions.
Start and finish are based at Soldier Field, where the United Club serves as the event headquarters and a gear check is available before the run. The longer race covers 13.1 miles, while the 5K is staged on the same morning for those who prefer a shorter distance.
Mile markers along the route are flagged with feather-themed banners, a nod to the F^3 name. The organisers bill it as Chicago's original winter half marathon, and it has been run for many years.
Who it's for
A solid challenge for committed running athletes.
Good fit if you…
- have done a few events and want a real challenge
- want a choice of distances
Maybe not if you…
- want a big marquee event: this is a smaller, local-scale race
What should you know about F^3 Lake Half Marathon?
- Date
- Saturday, 30 January 2027
- Format
- 5K · Half Marathon
How do you register for F^3 Lake Half Marathon?
Where does F^3 Lake Half Marathon take place?
Chicago, United States
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