The Chicago Lakefront 50K, 20.7M, and Half Marathon offers a rich history with multiple decades of tradition across races geared towards more seasoned runners. Chicago’s longest running ultra race features three, 10.3-mile out-and-back laps on the pedestrian path of the scenic Chicago Lakefront Trail. The Half Marathon follows the same course but with one “short” lap and one “long lap” The 20.7M follows the same course, but totaling two laps.
Chicago Lakefront 50k, 20.7M & Half Marathon
Date
Nov 1, 2025
Starting Time
9:00 AM
Course
Trail
Fees
$60+
Location
Chicago
Participants
1-100
Terrain
Fast & Flat
Environment
Lakefront
Temperature
High: 55°
/ Low: 30°
Overview
Course Description
Past Results
