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  7. Des Plaines River Trail Marathon
Des Plaines River Trail Marathon

Des Plaines River Trail Marathon

Libertyville, United States of America · Sunday 10 October 2027

Official WebsiteTrailFull Marathon

The Des Plaines River Trail Marathon is held annually in Lake County, Illinois, primarily utilizing the Des Plaines River Trail, a multi-use trail north of Chicago. Starting and finishing at Half Day Forest Preserve, the course follows an out-and-back format along the northern segment of the trail. The surface consists of fine crushed limestone, which remains flat, wide, and free of roots and rocks throughout the race. The course was re-certified in 2023 and is marked for easy navigation.

Difficulty Calculator

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m
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Adjusted Time

4:42:47

Very Difficult

Time difference: +42.8 minutes compared to a flat, road, temperate course.

Course Details

Elevation Gain144m
Elevation High220m
Elevation Low195m

Weather Forecast

High27°C
Low13°C
Chance of Rain1%

How hard is Des Plaines River Trail Marathon?

Very Difficultharder than 92% of marathons
Flattest / easiestHardest

On our difficulty model, Des Plaines River Trail Marathon plays about 43 minutes slower than an average road marathon for a 3:30 runner. It ranks #91 hardest of 1151 marathons we analyse, and #40 of 576 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 Des Plaines River Trail 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 timeOn Des Plaines River Trail MarathonDifference
3:00:003:33:24+33:24
3:30:004:08:11+38:11
4:00:004:42:47+42:47
4:30:005:17:15+47:15
5:00:005:51:40+51:40
5:30:006:26:02+56:02
6:00:007:00:24+1:00:24

Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.

Des Plaines River Trail Marathon 2027 Course Analysis

Des Plaines River Trail Marathon is a full marathon held in Libertyville, United States of America. It is scheduled for Sunday 10 October 2027. The course is run on trail surface with 144m of total climbing, with its high point near 220m above sea level. For registration and full race details, visit the official Des Plaines River Trail Marathon website.

Elevation Profile

With 144m 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 October, the expected race day conditions are as follows. Moderate temperatures between 13°C and 27°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 (1%), so dry conditions are likely.

Surface Type: Trail

Des Plaines River Trail 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 Des Plaines River Trail Marathon against other marathons to find the right race for your goals.

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