Pere Marquette Endurance Trail Run
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
Pick your distance
Trail running
7.8 Mile Trail Run
Typical race-day weather
Based on 2 years of Open-Meteo archive data for this event's race dates in Grafton, plus the 3 days either side.
The sun rises at 7:11 AM and sets at 4:39 PM local time (CST) in Grafton on December 12, 2026 — 9h 28m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
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Other races near Grafton
Different organizers, within 40 miles, in the next three months
Backyard Ultra in New Town (Oct 10 8:00AM)
Jingle Bell Run - St. Louis, MO
St. Mary's Oktoberfest 5k & 1 Mile Fun Run
STL CURE SARCOMA 6K RUN/WALK
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 1 Grafton event
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