Trail Running calendar near Monterey County 2025-2026

The Dick Collins Firetrails will take place in Castro Valley from Saturday 27 September 2025 to Sunday 28 September 2025. You can run between 42 and 100 kilometers.

The Pacifica Summit Run is an exciting running event taking place at San Pedro Valley State Park in Pacifica, CA. Participants can choose between a 10K and a Half Marathon, both offering stunning views of the Pacific Ocean coastline and challenging switchbacks. This event is designed for runners of ..

The Haunted Hills 10K in Redwood City is a unique running event scheduled for October 25, 2025. Participants can form teams of 1 to 5 and embark on a fun-filled adventure through the festively decorated neighborhoods. Runners will navigate approximately 36 checkpoints on the 10K course, answering si..

The Tierra Redonda Mountain Trail Run is an exciting trail running event scheduled for November 15, 2025, in Bradley, California. Participants can choose from various distances, including 5km, 10km, 20km, as well as 24-hour and 48-hour challenges. This event is organized by AllWeDoIsRun, which is de..

The Quarry Turkey Half Marathon is a family-friendly running event taking place on November 29, 2025, at Quarry Lakes Regional Park. This Thanksgiving weekend tradition features a half marathon, 10K, and 5K, along with a free "Little Turkeys" race for children. Participants are encouraged to wear Th..

The Brazen New Year's Day event in 2026 offers participants a choice of three scenic running distances: a half marathon, 10K, and 5K, set against the beautiful backdrop of Lake Chabot in Castro Valley, California. This invigorating race takes place on January 1st, welcoming runners to kick off the n..