Chicago Marathon 2027 Guide: Where Time Is Won and Lost on a Flat Course
This is part seven in our series on the world's eight major marathons, one deep read at a time. While you wait on the lottery, here's what to know: the other ways in, the course through 29 neighborhoods mile by mile, and how to get from the expo to the post-race beer.
"It's flat, so a PR is basically in the bag, right?" That's the first thing most runners think when they pick Chicago. Half right. Seven world records have gone down on this course. The other half comes down to weather, logistics, and a hill hiding in the last mile. YouTuber Go Baewoo (channel "RunningGo Lab Go Baewoo") ran the 2025 race and summed it up at the finish: "I've run four World Marathon Majors and Chicago has been the best so far." The reason wasn't his time. It was the sidelines. He said the crowds never let up from start to finish. General entry for the 2027 race is already closed, so all that's left is the results email. While you wait, read up on the course and your other ways in. Whichever way the email goes, you'll scramble less. Dates and prices below come from the race's official information (checked November 13, 2026). · Race day: Sunday, October 10, 2027, the 49th edition · Start and finish: Grant Park · Time limit: 6 hours 30 minutes (15-minute-per-mile pace) · Entry fee: $250 for U.S. residents, $260 for international residents (processing fee extra) · Lottery results: emailed December 8, payment due by December 15 · Expo (bib): McCormick Place, October 7–9, 2027 · Average October temperature: 12.4°C (about 54°F)
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