Saturday, Apr 12, 2025 @ 8:00 AM

Double Chubb

131 N Outer Rd

St Louis, MO 50K, 25K, 8M

Registration closes: Thu, Apr 10 @ 11:59PM CT

Packet Pickup

Packet pickup will be April 12th, 2024 at the Des Peres Fleet Feet location at 4:00 pm - 7pm. Race day pickup will start at 6:30 am.


West Tyson County Park 131 N. Outer Rd East, Eureka, Missouri 63025 from I-270, take I-44 west for 7 miles to the Lewis Road exit. At the Lewis Road exit, make a right turn (north). The park entrance is on your right immediately after the exit. Start area is the near the entry gate to the park.


Unfortunately there are no refunds if you can't make it. We utilize the money from registrations for all the race day activities. Additional money will be donated back to the trail system or organizations in the STL area that help make our trails beautiful
- You may drop from the 50k to the 25k up to two weeks prior to race day. Any drops after this or on race day are allowed, but you will not be eligible for awards (Overall or Age Group).
- Sorry no waitlist.

Bib Transfers

We will allow bib transfers until 4/10/2025. If you choose to give or sell your registration to another runner, it will be up to you to make that transaction. A bib transfer is a 2-step process that must be completed by the original registrant AND the recipient (not the Race Director).To complete a bib transfer, you must log in and edit your race registration on the UltraSignup website and enter the recipient's name and email address to set up the transfer; the recipient must then complete registration via UltraSignup using the credit created by your cancellation/transfer to enter the race. If someone shows up on race day and has not completed this process, they will not be entered in the race. If you are selling your registration to another runner, it is up to you to collect the money from the buyer. Funds will not be transferred via UltraSignup.


We will keep you posted on Swag!


This race is brought to you by the Saint Louis Ultrarunners Group.
(SLUG members receive a $10 discount on race registration. Click here for more details.)

Event's current local time: 9:20 PM CT


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