Chicago Marathon 2027
- Date
- October 10, 2027
- Location
- Chicago, USA
- Distance
- 42.2 km
- Difficulty
- Easy
- Field
- 54,382 finishers
The 2027 Chicago Marathon takes place on Sunday, October 10, 2027 in Chicago, USA. A flat, fast single-loop course through Chicago starting and finishing in Grant Park. Race-week weather is typically 9°C to 18°C.
Training for the Chicago Marathon?
Coach Icarus builds your plan around your fitness and your schedule.
The course
A flat, fast single-loop course through Chicago starting and finishing in Grant Park. Runners head north up Michigan Avenue and LaSalle through Streeterville, Lincoln Park and Lakeview, pass Wrigleyville, then loop west through the West Loop and Pilsen and south through Chinatown (passing under the Chinatown Gate at mile 19), Bridgeport and past Guaranteed Rate Field before returning north along South Michigan Avenue. Elevation gain is only about 243 feet, with the one noticeable rise on Roosevelt Road at mile 26; the course passes through 29 neighborhoods.
Course summary source: run.outsideonline.com
2026 results
Men's winner
Amos Kipruto 2:01:09
Women's winner
Hawi Feysa 2:13:33
The first marathon in history with three women under 2:15 — Feysa defended her title ahead of Sharon Lokedi (2:14:07) and Brigid Kosgei (2:14:55). Kipruto’s 2:01:09 was the second-fastest marathon ever run on US soil.
Course map & elevation
Distance
42.9 km
Elevation gain
52 m
Elevation loss
48 m
High / low
224 / 181 m
🛰️ Community-sourced GPX with DEM-corrected elevation — not an organizer-verified course.
Race-week weather
Typical high
18°C
Typical low
9°C
Year-to-year swing
±2.4°C
Rain
2.9 mm/day
Based on 2020-2025 of race-week history, with peak gusts around 26 km/h.
Difficulty
Entry difficulty: Lottery / ballot — separate from how hard the course itself is.
Race facts
- Official race site
- chicagomarathon.com ↗
- Start time
- 07:30
- Field size
- 54,382 finishers (2025)
- Boston qualifier
- Yes
Distances: 42.2 km
When is the Chicago Marathon 2027?
The 2027 Chicago Marathon takes place on Sunday, October 10, 2027.
Training for the Chicago Marathon?
Coach Icarus builds your plan around your fitness and your schedule.
Predict your finish time
Enter one recent race result and get predicted finish times across 5K, 10K, half marathon, and marathon.
Predicted Finish Time
52:07
Pace / km
5:13
Pace / mile
8:23
| Distance | Predicted Time |
|---|---|
| 5K | 25:00 |
| 10K | 52:07 |
| Half Marathon | 1:55:00 |
| Marathon | 3:59:47 |
Predictions assume similar fitness, course, and conditions — they are a starting point for goal setting, not a guarantee.
More USA races
November 14, 2026
Charlotte Marathon
Charlotte · Marathon
November 14, 2026
Richmond Marathon
Richmond · Marathon
November 22, 2026
Philadelphia Marathon
Philadelphia · Marathon
November 29, 2026
Seattle Marathon
Seattle · Marathon
December 6, 2026
California International Marathon
Sacramento · Marathon
December 12, 2026
Jacksonville Marathon
Jacksonville · Marathon