At a glance
- Date
- Mar 27, 2027
- Location
- Grafton, Illinois
- Distances
- 50K, 25K, 12.5K
- Elevation gain
- 4,000 ft
- Registration
- Closes Mar 27, 2027, via ultrasignup.com
Listed from UltraSignup. Checked Oct 18, 2026.
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Build my planAbout this race
Set deep within the rugged bluffs and forested ravines of Pere Marquette State Park in Grafton, IL, the Piasa Trail Races are a confrontation between runner and terrain, legend and legendary. The course features technical terrain, sustained climbing, and over 4,000' of climbing for the 50K distance.
Key dates
Registration closes
Mar 27, 2027
Race day
Mar 27, 2027
Pricing
50K Run
Registration
$155
25K Run
Registration
$125
12.5K
Run Registration
$95
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Tune-up races
Straight-line distance
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Race planning
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