Races. Routes. Clubs. Training. Gear. Stories.
Built for the people who run this city.
7 AM Conditions · Chicago
Forecast unavailable
The dew point really became more my guiding metric.
Alex Smith · chi.run
As featured in
Chicago Tribune
chi.run featured as an independent guide for Chicago runners
October 7, 2026
Read the article2027 Chicago Marathon
The 2026 race is done. Applications for the October 10, 2027 race are open through Thursday, October 29 at 2:00 PM CT. More than 200,000 people applied last year, so apply to the drawing and line up a backup path at the same time.
Oct 29
Applications close
Dec 8
Drawing results
Dec 15
Payment deadline
Race deadlines, trail conditions, and what Chicago runners are talking about.
OCT 18
Chicago Fall Classic Half Marathon & 10K
13.1M / 10K / 5K
Chicago, IL
OCT 24
Universal Sole October Trail Challenge
3M / 6M / 9M Trail
Wolf Road Woods, Willow Springs
OCT 24
Lake Bluff Pumpkin Chase 5K
5K
Lake Bluff, IL
NOV 1
Hot Chocolate Run Chicago
5K / 10K / 15K / 2M Walk
Grant Park, Chicago, IL
NOV 8
Fast Track Cross Country Regionals
3M (XC)
Schaumburg, IL
Advertisement
Advertisement
Everything you need for race day, from your first training run to the finish line in Grant Park.
Explore the Chicago Marathon Guide
Written from real Chicago miles, lake wind and August humidity included. Some links may earn a commission.
Humidity off the lake changes what works. The shorts, hats, and hydration we reach for in July.
Tested downtown where the skyline eats your signal, plus what actually matters on race day.
The full kit laid out the night before, from throwaway layers to gel placement.
Running through January on the lakefront without losing feeling in your hands.
Race deadlines, trail conditions, and what Chicago runners are talking about.
