Tracksmith Chicago 2025. A ciele x tracksmith joint adventure celebrating your journey to the marathon starting line. The tracksmith twilight 5000 series is designed to bring the racing experience of elite runners to everyone with a fun, low stakes race under the lights.

In years past, the chicago marathon’s time standards for guaranteed entry were typically. The tracksmith twilight 5000 series is designed to bring the racing experience of elite runners to everyone with a fun, low stakes race under the lights.