Read the full edition note

Chicago Marathon · October 2027

Course & strategy

Start and finish streets are published. There is no GPX and no elevation chart.

In this guide · 2 decisions
  1. 01What the FAQ gives you
  2. 02One street with a mile

What the FAQ gives you

Start at Columbus Drive and Monroe Drive in Grant Park. Finish on Columbus Drive south of Balbo Drive. 6 hours 30 minutes. About 15:00 per mile to stay inside that. 20 aid stations, about one to two miles apart. Gatorade Endurance at all of them.

The participant page says the course goes through 29 neighborhoods. It does not list them, and it does not link a GPX.

One street with a mile

Laflin Street between Adams and Jackson is printed as a lactation tent at miles 15 and 16. The same participant page still shows 11–12 October 2026 and 4 December 2026 in lost-and-found lines. Use the tent as a published sentence, not as a surveyed 2027 map.

The 57 m and 30 m figures already in this record were not on the FAQ. No course atlas.

Continue the plan

Turn course time into a spectator routeUse the same miles and predicted finish to decide which sightings are realistic.

Edition status

The FAQ, opened 4 November 2026, says the 49th running is Sunday 10 October 2027. The start is Grant Park at Columbus Drive and Monroe Drive. The finish is Columbus Drive south of Balbo Drive. Time limit 6 hours 30 minutes. The participant page prints a Sunday schedule and says the times can change. No GPX. We do not have a surveyed pin for the Columbus and Monroe intersection.