Triple Crown 10K Night Trail Run Series is no “ordinary” trail running series. The Triple Crown is designed for the vert chasers and the night owls! If you love to climb and enjoy running trails at night, we are excited to share this three-week hill progression trail running series with you.

Ditch the Friday night bar crawl and adventure with Terrain Trail Runners for the TC10K night trail run series for
three straight weeks in August!

Over the course of three weeks, runners will experience some of the most challenging climbs and descents after dark while navigating the rugged terrain that St. Louis West County area trail systems have to offer.

August 7, 2026 – Bluff View Shuffle – Climb 100 Feet/Mile over 10K
August 14, 2026 – Eagle Valley Scramble – Climb 130 Feet/Mile over 10K
August 21, 2026 – Chubb Crawl – Climb 200/Mile over 10K​