The Shippey Endurance Runs
Jan 16, 2027High Ridge, MO100 mi, 100K +2
8 mi from 50K Mashup Slam, 1 week after 50K Mashup Slam, registration open
At a glance
- Date
- Jan 9, 2027
- Location
- Crystal Lake, Illinois
- Registration
- Closes Jan 7, 2027, via ultrasignup.com
Listed from UltraSignup. Checked Oct 18, 2026.
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Build my planAbout this race
The 50K MASHUP SLAM is a series of 50K trail races held throughout the Midwest. Participants who complete the required series races in the same calendar year receive a finisher buckle, with awards presented at the final series event.
Key dates
Registration closes
Jan 7, 2027
Race day
Jan 9, 2027
Pricing
Current price
$75
Registration
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Straight-line distance
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Race planning
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