Pere Marquette Endurance Trail Run Logo

Pere Marquette Endurance Trail Run

Sat, Dec 12, 2026
In 34 days
Grafton, IL
13112 Visitors Center Lane

On this date: rain 1 of the last 10 years

2025

30–38°F

dry

2024

21–35°F

dry

2023

32–45°F

dry

2022

34–42°F

dry

2021

33–51°F

dry

2020

37–52°F

rain

2019

32–46°F

dry

2018

35–49°F

dry

2017

27–39°F

dry

2016

26–35°F

dry

Best months to race in Illinois →

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About this race

This will be the 37th year of the Pere Marquette Endurance Trail Run. 7.8 miles of hills and incredible scenery through the park in December. Packet pickup and pre-race coffee available in the beautiful lodge with a roaring fire. Post race festivities and awards are also in the lodge. 

The race is a go regardless of rain, sleet, snow, ice, mud or muck. It's a trail race not a day at the beach. HOWEVER.... should the Park Service close Pere Marquette State Park due to severe inclement weather or other unforeseen cause, Metro Tri Club will cancel the event and offer no refunds or deferments. 

Packet Pickup: Race day starting at 7:30AM in the Pere Marquette State Park Lodge

Race Awards:  Male and Female Overall, Male and Female Masters (40+), Top 3 age group in 5-year increments from 14 to the oldest person to finish

Course map

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