F^3 Chicago Winter Half Marathon


Chicago winter half marathon start time and location


There are NO refunds or deferment options for the Half Marathon or 5K.

Change Distances

To change your registration distances, log in here.


The F3 Lake Half Marathon and 5k races take place in January in Chicago. Expect wintery conditions. Safety is our priority.

Please stay tuned to our Facebook page for weather updates. There may be delays due to extreme weather – please listen to the announcer for updates.

F3 Events works closely with the City of Chicago and reserves the right to cancel/re-schedule the event in dangerous weather. Please note that your registration is non-refundable.