Illinois Half Marathon
Champaign, United States of America · Sunday 25 April 2027
The Illinois Half Marathon embodies the heart of the American Midwest. As you run this scenic race, you will have a chance to connect with other inspired athletes and tap into your ultimate resolve. There is truly a path to something great, and Illinois unlocks this to a world. You are invited to see all of America. This will be a memory that you will look back on. From rolling hills and open skies, this region's natural excellence will capture your gaze.
Difficulty Calculator
h
:m
:s
Adjusted Time
1:44:07
Time difference: -0.9 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain73m
Elevation High231m
Elevation Low216m
Weather Forecast
High22°C
Low10°C
Chance of Rain0%
How hard is Illinois Half Marathon?
Moderateharder than 28% of half marathons
Flattest / easiestHardest
On our difficulty model, Illinois Half Marathon plays about 1 minute slower than an average road half marathon for a 1:30 runner. It ranks #325 hardest of 450 half marathons we analyse, and #112 of 145 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 Illinois Half Marathon?
Estimated finish times on this course versus the same effort on an average road half marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Illinois Half Marathon | Difference |
|---|---|---|
| 1:30:00 | 1:28:53 | −01:07 |
| 1:45:00 | 1:44:07 | −00:53 |
| 2:00:00 | 1:59:21 | −00:39 |
| 2:15:00 | 2:14:36 | −00:24 |
| 2:30:00 | 2:29:52 | −00:08 |
| 2:45:00 | 2:45:08 | +00:08 |
| 3:00:00 | 3:00:25 | +00:25 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Illinois Half Marathon 2027 Course Analysis
Illinois Half Marathon is a half marathon held in Champaign, United States of America. It is scheduled for Sunday 25 April 2027. The course is run on road surface with 73m of total climbing, with its high point near 231m above sea level. For registration and full race details, visit the official Illinois Half Marathon website.
Elevation Profile
This is a very flat course, with only 73m of total climbing and little change in altitude throughout. Flat profiles let you hold an even pace from start to finish, which makes this a fast, PB-friendly race.
Expected Race Day Weather
Based on historical weather data for April, the expected race day conditions are as follows. Moderate temperatures between 10°C and 22°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance on race day. There is a low chance of rain (0%), so dry conditions are likely.
Surface Type: Road
Illinois Half Marathon is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
Looking for an easier marathon or a tougher challenge? You can also compare Illinois Half Marathon against other half marathons to find the right race for your goals.
Half marathons of similar difficulty
If Illinois Half Marathon fits your goal, these courses play out about the same on our difficulty model.
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