All runs will take place on the Switchgrass Mountain Bike Trail at Wilson State Park. The 100 has the most elevation gain and loss of any 100-miler in Kansas! If you’re looking for a challenging course in the “flatlands” you’ve found it. The trail is easy-to-follow, rugged, single-track with very few trees/wooded areas. Beautiful views of Wilson State Park and Wilson Lake are abundant.
Start times:
100 miler – 6:00 AM Saturday, October 4, 2025
100k – 7:00 AM Saturday, October 4, 2025
20 miler – 8:00 AM Saturday, October 4, 2025
Pure Hell 140 Mile Race
Friday, October 3, 2025 at 10am.
52 hour cutoff
A previous 100-mile finish is required for sign-up for THE PURE HELL 140 (any 100-mile race will do). If you have a completed a 100 on Ultrasignup feel free to just sign-up. If you have completed a 100 miler (that you can prove) that was not listed on Ultrasignup please reach out to us prior to sign-up to learn what steps to take.
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