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About RaceIndexOur methodologyData coverageCyclingTriathlon
  • Marathon
  • 42.2 km
  • Vernon Hills
  • Event weekend starts
  • Open entry

Des Plaines River Trail Races Marathon

This race edition

Race date
Date not confirmed for this distance
Race timezone
Timezone not confirmed
Edition status
Status not confirmed

Entry options

2026 edition

Entry options are not yet confirmed for this edition. Check the organiser before making plans.

Official event website & entry ↗
Plan my trainingPlan my paceData current as of

Decision summary

Des Plaines River Trail Races Marathon at a glance

Cut-off average pace
14:56/km

10:30:00 total limit divided by distance. Check gun/chip timing and intermediate limits; allow time for stops.

Typical conditions
75/100

Historical race-date favourability, not a forecast

Evidence depth
36 verified facts

Source facts available

Route details

Known course facts at a glance

Methodology →

Des Plaines River Trail Races Marathon has known course details for its marathon race. The summary below keeps the focus on what is confirmed for the course.

Official distance
42.2 km
Terrain
Trail, Road
Scenery
Parkland, Forest, Lakeside, Riverside

Quick answers

What runners ask first

Where can I find the Des Plaines River Trail Races Marathon route map?

Use the official course links on this page for the organiser route page, map PDF or route download.

Official course links

How hilly is the Des Plaines River Trail Races Marathon?

The Des Plaines River Trail Races Marathon is described as pancake flat.

Where does the Des Plaines River Trail Races Marathon route go?

The Des Plaines River Trail Races Marathon route starts at Half Day Forest Preserve, Shelter A, 24255 IL-21, Vernon Hills, IL 60060 and finishes at Half Day Forest Preserve, Vernon Hills, IL (same as start). Underfoot, expect fine crushed limestone/gravel trail, wide and free of roots and rocks; 100% trail except for a few road crossings. It passes Des Plaines River Trail, Half Day Forest Preserve, Old School Forest Preserve, Route 60 Canoe Launch and Adler Park School. Course runs through alternating lush forests and open wetlands.

What should runners know on race day for the Des Plaines River Trail Races Marathon?

Drop bags available for 50 Mile and 50K runners at the Adler and Wadsworth aid stations. Pacing is not allowed under any circumstance except for runners who are handicapped or legally blind; using a pacer otherwise results in disqualification. Cupless race using disposable timing chips on bibs.

Race character

Scenery

  • Parkland
  • Forest
  • Lakeside
  • Riverside

Terrain

  • Trail
  • Road
Elevation character
Pancake Flat
Technicality
Non Technical

Entry, logistics and records

Entry requirements

Entry status
Open entry: The held registration model is open entry and this edition is not marked sold out.
Cut-off
Generous cutoffs with all distances; course closes at 6:30 PM (Half Marathon ~9.5h, Marathon ~10.5h, 50K/50 Mile ~11.5h).
Qualification status
USATF Certified course (re Certified August 2023) and a Boston Marathon Qualifier.

Race day logistics

Pacers
Pacing is not allowed under any circumstance except for runners who are handicapped or legally blind; using a pacer otherwise results in disqualification.
Bag drop
Drop bags available for 50 Mile and 50K runners at the Adler and Wadsworth aid stations.
Medal
Finisher medals are handed out as runners cross the finish line.
Finisher tee
Race shirt included with registration; shirt size guaranteed if registered by August 1st.

Access and course status

Start
Half Day Forest Preserve, Shelter A, 24255 IL-21, Vernon Hills, IL 60060
Finish
Half Day Forest Preserve, Vernon Hills, IL (same as start)

Course facts

Course type
Out And Back
Surface
Fine crushed limestone/gravel trail, wide and free of roots and rocks; 100% trail except for a few road crossings.
Landmarks
Des Plaines River Trail, Half Day Forest Preserve, Old School Forest Preserve, Route 60 Canoe Launch, Adler Park School, Gowe Park, Wadsworth Canoe Launch
Notable features
  • Course runs through alternating lush forests and open wetlands
  • major road crossings are handled via bridges or viaducts
  • an alternate loop course is used if the river floods
  • Cupless race using disposable timing chips on bibs
  • multiple aid stations along the route

What are typical race-day conditions?

  • 14°CTypical temperature
  • 21 kphTypical wind
  • 3 mmTypical rainfall
  • 75Favourability /100
Typical conditions for the race date and locality, warmer than the endurance-optimal window. These are climatological norms, not a forecast, and are shared across every distance at this event.

How we calculated this

Published facts and derived model outputs on this page are tied to stored sources or a published, version-locked methodology. We show the provenance so runners, coaches and organisers can check it. Data on this page is current as of .

Derived numbers use scoring-methodology-v1.0.

Sources used on this page (2)

Read the full methodology →