Tokyo vs Chicago Marathon — Side-by-Side Guide
Compare the Tokyo and Chicago Marathons side by side — course profile, weather, field size, qualification, and atmosphere to help you choose your next race.
Quick Comparison
| Feature | 2027 Tokyo Marathon - Mar 7 | 2026 Chicago Marathon - Oct 11 |
|---|---|---|
| Country/Region | Japan | USA |
| Month | March | October |
| Avg Temperature | 8-12°C | 10-16°C |
| Course Type | Flat | Flat |
| Elevation | ~40m | ~15m |
| Field Size | 38,000 | 45,000 |
| Entry | Lottery | Lottery/Time |
| World Major | Yes | Yes |
| BQ Course | Yes | Yes |
| Crowd Support | Excellent | Excellent |
Detailed Comparison
Tokyo and Chicago are both World Marathon Majors with flat, fast courses — but they deliver fundamentally different racing cultures. Tokyo runs in early March (8-12°C) with 38,000 runners on a loop course through Shinjuku, Ginza, and Asakusa. Chicago races in October (10-18°C) with a larger 45,000-strong field on a pancake-flat course (~30m elevation) through the Windy City's diverse neighborhoods.
Chicago's flat profile and autumn timing have produced some of the fastest non-Berlin times in major marathon history. Tokyo's course (~40m elevation) is similarly flat but the cooler start temperature gives a slight edge for runners who thrive in cold conditions. Both use lottery entry, with Tokyo being notably harder to get into — international acceptance rates hover around 10%. Use the lottery calculator to estimate your odds for each.
For the fastest possible major marathon outside Berlin, Chicago's course and conditions are hard to beat. For a uniquely Japanese experience — impeccable organization, polite but passionate crowds, and post-race ramen — Tokyo is unrivaled. Many runners consider Chicago the best-organized major for first-timers, while Tokyo is the bucket-list race you save for when the lottery gods smile.
Explore Each Marathon
2027 Tokyo Marathon - Mar 7
Live countdown, race info, and training tools.
View Countdown →2026 Chicago Marathon - Oct 11
Live countdown, race info, and training tools.
View Countdown →Frequently Asked Questions
Which is faster, Tokyo or Chicago Marathon?
Tokyo features a flat course while Chicago has a flat profile. The Chicago course is generally well-suited for fast times.
How do I enter the Tokyo Marathon vs Chicago Marathon?
Tokyo Marathon uses a Lottery entry system with a field of 38,000 runners. Chicago Marathon uses Lottery/Time with 45,000 spots. Plan your entry strategy using our Marathon Lottery Calculator.
What is the best weather for running, Tokyo or Chicago?
Tokyo in March averages 8-12°C. Chicago in October averages 10-16°C. Use our Dew Point Calculator and Heat Adjustment Calculator to plan for race-day conditions.
Can I qualify for Boston at Tokyo or Chicago?
Both the Tokyo and Chicago Marathons are BQ-eligible courses. Use our Pace Calculator to determine your BQ target pace.
Which marathon has better crowd support?
Tokyo is known for excellent crowd support, while Chicago offers excellent spectator atmosphere. Both races create memorable experiences. Plan your spectator strategy with our Spectator Planner.
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