DOOMSDAY 5K
Thursday, January 1, 2026

806 Cliff Cave Rd.
St. Louis, MO 63129
First ever 5k trail race presented by Terrain Trail Runners - STL! 
Whether you are just getting your feet wet with trail running or you are an experienced trail runner this is the race for you. 

The Doomsday 5K trail race is the first foot race to be hosted at Cliff Cave County Park, Missouri on January 1, 2026, to help you start the New Year R.I.G.H.T!
January 1, 2026
Start Time:  10 a.m.
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Do you want to race but can’t afford the entry fee? Are you a part of the BIPOC or LGBTQ+ community? Apply to the Trail Mix Fund to have your registration fee waived.
Photos
 2026