F3 Lake Half Marathon

The F^3 Lake Half Marathon & 5k is Chicago's original winter half marathon, attracting thousands of runners each year. Scheduled for January 25, 2025, the event features a 13.1-mile course along the scenic lakefront, ideal for those preparing for spring marathons or aiming to maintain fitness in the new year. Participants can enjoy amenities such as gear check, aid stations, and pacers.

Each registrant receives a hoodie and medal, and the event concludes with a lively afterparty. The race is known for its community spirit and has a total prize purse exceeding $6,000. Visit the organization's website for the most recent information.