Doomsday 5K

Doomsday 5K

Register Thursday, Jan 1, 2026 @ 10:00 AM. 806 Cliff Cave Rd St. Louis , MO. 5K

Registration closes: Sun, Dec 28 @ 11:59 PM CT

Race Day Registration - $70.00
ALL race day registrations will receive a custom Doomsday 5K PINT. You can swap the pint for a shirt if we have any sizes available post-race. - *CASH ONLY* - Race Day/onsite registration will begin at 9AM on January 1, 2026!

Included in your RACE DAY REGISTRATION:
- Custom Finisher Medal
- Post-Race Coffee and Snack. PLEASE bring your own mug for coffee. *We will not have any paper or plastic cups, plates and/or utensils at our events to help us reduce the waste from our races as part of our Zero Waste pledge.

LOCATION
Cliff Cave County Park , 806 Cliff Cave Rd, Saint Louis, MO 63129

COURSE DESCRIPTION
The Doomsday 5K trail race will start/finish a little way past the train tracks in Cliff Cave County Park. Runners will start on the pavement for 1/2-ish Mile then get on the Spring Valley Trail Outer Loop for 1.8-ish Miles before heading back to the finish on pavement once again for 1/2-ish Mile to the finish. Spring Valley Trail is an all-dirt trail with rolling hills, some roots and rocks to keep you present!
*Spring Valley Trail is a beginner friendly trail*

START TIME & TIME LIMIT
The race will start at 10:00 AM. The cutoff for the race is 2 Hours

5K Registration $55.00