Chicago, IL · Sun, September 13, 2026 · 07:00
Projected at race day for M 18-34, from your 4:00:00 marathon + training runway.
Lakefront. Flat. Late summer can be warm.
The Chicago Half Marathon is a half marathon held in Chicago, IL on September 13, 2026. With a Green Score of 8.4/10, it's one of the easier, more beginner-friendly US races. The course is pancake-flat (~11 ft of gain per mile). Typical race-day weather is a mild 60°F, dew point ~52°F (10-year normal). Entry is around $135. Marathon Compass rates every race across terrain, climate, logistics, travel, and field size so you can find the one that fits you — and build a training plan tuned to your fitness.