F^3 Events was established in summer 2009 in order to develop a winter half marathon. Word traveled among runners and suddenly more than 100 people were involved. The very first (and very unofficial) F^3 Half Marathon took place in January 2010. It was a roaring success!
In 2024 F^3 is celebrating its 15th annual winter half marathon. This event has been a staple of the running community for its existence, and is now the largest and most well known winter half marathon in Chicago. In 2019 F^3 added a Halloween race, which is on schedule to sell out. F^3 Events has plans to expand races in the coming years.