2027 Chicago Marathon - Oct 10

2027 Chicago Marathon - Oct 10 Countdown

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Race Information

Race2027 Chicago Marathon - Oct 10
CityChicago
Date2027-10-10 at 07:30
Time Limit6 hours 30 min
Cutoff pace9:15/km
Course speed
Fast course Speed index 0.88 — median of the last 5 winners' times against the global same-year median. Winner times track elite fields and prize money, so this reads the course as a proxy, not a pure measurement.
TimezoneAmerica/Chicago
Official SiteChicago Event Management
Fee trend 2022 $2302024 $2402025 $2452026 $2502027 $250(5-yr +8.7%)· below industry avg (+1.7% vs +4.6%/yr)
International $260 · 1× domestic

Time-qualifier standards 2026

Men 16–34: 2:50:00 · women 3:20:00 · 11 age groups

A full-marathon time on a certified course, at or under the standard for your age on race day, guarantees entry.

Age group Men Women & non-binary
16–34 2:50:00 3:20:00
35–39 2:55:00 3:25:00
40–44 3:00:00 3:30:00
45–49 3:10:00 3:40:00
50–54 3:15:00 3:50:00
55–59 3:25:00 3:55:00
60–64 3:40:00 4:15:00
65–69 3:55:00 4:30:00
70–74 4:15:00 4:45:00
75–79 4:30:00 5:00:00
80+ 4:50:00 5:20:00

High Performance Program: Open M 2:25:00 / W 2:45:00 · Masters 40+ M 2:35:00 / W 2:50:00

Source: chicagomarathon.com, official qualifying standards · verified 2026-08-17

Race Day Weather

Average Temperature14.1°C / 57°F
Humidity75%
Peak Wind29 km/h
Rain Chance33%
Typical ConditionsOctober weather varies

What to Prepare: Historical weather is context, not a forecast for 2027. Check the race-week forecast before choosing clothing and adjust your goal if conditions are warmer than expected.

Based on historical averages for race week. Use our Weather Score Calculator and What to Wear Guide for personalized advice.

Wind Impact on Race Day

The historical daily peak wind shown here is context, not a race-day forecast. Use your running pace, wind direction and exposure in the wind calculator instead of assuming a fixed seconds-per-kilometer penalty.

Calculate your wind-adjusted pace →

Historical Climate Window

Historical sample: 2005–2024, centered on 10-11 ±7 days. This sampling window is not a forecast for the current edition.

Cooler Typical Warmer
Temperature 9°C 14.2°C 18.8°C
Dew point 3.4°C 9.5°C 15.6°C
Wet-day chance: 33% Runnability: 70/100

Recent actuals: 2023 9.6°C / 2024 14.5°C / 2025 13.2°C (morning avg)

Data: NASA POWER (MERRA-2 reanalysis), NASA Langley Research Center

Course Profile

Course TypeLoop
TerrainRoad
ProfileThe current official course starts and finishes in Grant Park and passes through 29 neighborhoods. The organizer notes that the map is subject to change.
Boston QualifierYes — Check your BQ time

Finisher Trend

Year Finishers vs prev.
2021 26,112 —
2022 39,420 +51.0%
2023 48,398 +22.8%
2024 52,150 +7.8%
2025 54,351 +4.2%

Runners who crossed the line, not the registered field size.

Course Analysis

October 10, 2027: professional start at 7:30 a.m. CT

The 49th Chicago Marathon is confirmed for Sunday, October 10, 2027. The official 2027 race-day schedule puts the professional start at 7:30 a.m. Central Time, with Wave 1 at 7:35, Wave 2 at 8:00 and Wave 3 at 8:35. Start corrals open at 5:30 a.m. and Wave 1 corrals close at 7:20. The organizer notes that times are subject to change; the countdown runs to the 7:30 start.

Apply once before October 29

The non-guaranteed entry drawing is not first come, first served. Applications run from October 8, 2026 at 8 a.m. to October 29 at 2 p.m. U.S. Central Time. Submit one application: duplicate applications can be removed. Results arrive by email on December 8; if selected, pay and complete registration by December 15 at 11:59 p.m. Central.

Entry fee depends on residence and route

Regular entry costs $250 for U.S. residents or $260 for non-U.S. residents. Charity entry costs $325/$335 respectively, with a $2,500 minimum fundraising commitment. The charity fee does not include that fundraising obligation. Compare the charity agreement before committing; the program is first come, first served through September 10, 2027 or capacity.

Plan around the published course, then recheck the 2027 map

The current official course is a flat loop starting and finishing in Grant Park, with a published limit of 6 hours 30 minutes. The organizer says the map is subject to change. Treat aid-station locations as pending until the 2027 participant guide is available. Official 2027 entry rules; official course information.

Training in Chicago

Arriving early? Explore daily running routes and local tips.

Prepare for 2027 Chicago Marathon - Oct 10

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Featured In

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Frequently Asked Questions

When is the 2027 Chicago Marathon?

Sunday, October 10, 2027. The professional start is 7:30 a.m. Central Time, and the three waves start at 7:35, 8:00 and 8:35 a.m. under the official schedule, which notes that times are subject to change.

What is the Chicago Marathon 2027 lottery deadline?

Thursday, October 29, 2026 at 2 p.m. U.S. Central Time. Applications opened October 8 at 8 a.m. Central. This is a drawing, not a first-come queue; submit one application and check the confirmation.

When are lottery results and payment due?

Applicants receive their entry status by email on December 8, 2026. Selected applicants must pay and complete registration by December 15 at 11:59 p.m. Central or they will not receive a bib.

How much does entry cost?

Non-charity entry is $250 for U.S. residents and $260 for non-U.S. residents. Residence, rather than passport nationality, determines the fee. Charity entry is $325/$335 plus a minimum $2,500 fundraising commitment.

Can a qualifying time guarantee entry?

The time-qualifier route uses marathon results from January 1, 2025 through October 29, 2026. Check the official standard for your age and application division and submit verifiable results. A fast half marathon does not satisfy this requirement.

Is there a way to enter outside the drawing?

Official guaranteed-entry paths include time qualifiers, eligible legacy runners, charities and international tour operators. Each has separate conditions; contact the selected charity or tour operator for current entry availability and the full financial commitment.

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