Location: Tuthill Park, 3500 S Cliff Ave, Sioux Falls, SD 57103

Date: May 3rd 2025

Time: 5:00 AM – 5:00 PM (12 Hour Cutoff)

Participant Cap: 50

• Essay Only Format (no general registration) TutHell 50K Committee Reviews Essays and if you are chosen, you will get a link to register for the race. Essay deadline is April 1st, 2025. Submit your essay here – Essay Submission Link

• Free Will Donation Registration Fee (Pledge) see below.

Racer Information

The concept is simple, though not easy – you will perform the 0.31-mile loop up and down Tut Hill (grassy part) 100 times. This is roughly 90 feet of elevation gain and 90 feet of elevation loss. Trekking poles allowed. No Teams. Route will be well marked. Route Map will be coming soon.

Free Will Donation Registration Fee | 100% of Registration Fees go to the non-profit of the winner (Top Male/Top Female). In your essay, you will pledge your “registration fee”. On race day after winners have been decided, you will submit your pledge directly to the non-profit of the winning runner(s). Non-profits will be vetted by the TutHell 50K committee for authenticity.

All Entrants are expected to stay until the last runner has either dropped out or missed the 12-hour cutoff. This race is about building community, fellowship and supporting one another.

There will be a fully stocked aid station at the top of the hill by the bathrooms/storm shelter.  Runners are encouraged to bring their own race fueling.

Runners are asked to bring one support person to help them throughout the day.  Support people have access to snacks.

Official Race Chip Timing and Live Tracking through UltraSignup.