Chicagoland Spring Marathon
Schaumburg, United States of America · Monday 3 May 2027
The marathon event called the Chicagoland Spring Marathon is an annual road race held in Schaumburg, Illinois, a suburb northwest of Chicago. Unlike the major Chicago Marathon held in downtown Chicago, this spring marathon is separate both in location and organizational structure, with its own defining features and local importance. The event usually takes place in early May and is open to both marathon and half marathon participants.
Difficulty Calculator
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:m
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Adjusted Time
4:35:24
Time difference: +35.4 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain143m
Elevation High223m
Elevation Low209m
Weather Forecast
High20°C
Low6°C
Chance of Rain18%
How hard is Chicagoland Spring Marathon?
Very Difficultharder than 89% of marathons
Flattest / easiestHardest
On our difficulty model, Chicagoland Spring Marathon plays about 37 minutes slower than an average road marathon for a 3:30 runner. It ranks #127 hardest of 1150 marathons we analyse, and #64 of 575 in United States of America. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Chicagoland Spring Marathon?
Estimated finish times on this course versus the same effort on an average road marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Chicagoland Spring Marathon | Difference |
|---|---|---|
| 3:00:00 | 3:28:37 | +28:37 |
| 3:30:00 | 4:02:09 | +32:09 |
| 4:00:00 | 4:35:24 | +35:24 |
| 4:30:00 | 5:08:27 | +38:27 |
| 5:00:00 | 5:41:21 | +41:21 |
| 5:30:00 | 6:14:08 | +44:08 |
| 6:00:00 | 6:46:50 | +46:50 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Chicagoland Spring Marathon 2027 Course Analysis
Chicagoland Spring Marathon is a full marathon held in Schaumburg, United States of America. It is scheduled for Monday 3 May 2027. The course is run on trail surface with 143m of total climbing, with its high point near 223m above sea level. For registration and full race details, visit the official Chicagoland Spring Marathon website.
Elevation Profile
With 143m of total climbing, this is a gently undulating course. The elevation changes are manageable for most runners and shouldn't greatly affect your pacing.
Expected Race Day Weather
Based on historical weather data for May, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 6°C to 20°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a low chance of rain (18%), so dry conditions are likely.
Surface Type: Trail
Chicagoland Spring Marathon is a trail race, meaning the course includes unpaved surfaces such as dirt, gravel, or forest paths. Trail surfaces are usually slower than the road equivalent - often by 10-20% - because of uneven footing, technical sections, and frequently steeper gradients, though a smooth, non-technical or downhill trail can run faster than that suggests. Trail-specific shoes with good grip are recommended.
Looking for an easier marathon or a tougher challenge? You can also compare Chicagoland Spring Marathon against other marathons to find the right race for your goals.
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