Calero Trail Run - Winter

The Calero Trail Run - Winter, held at Calero County Park in San Jose, CA, offers a variety of trail running distances including 50K, Trail Marathon, 25K, Half Marathon, 15K, 10K, 5K, and a Kids Run. Participants can enjoy scenic single tracks, challenging hills, and dirt paths, making it an excellent training opportunity, especially for the 50K distance. The event features well-marked courses, aid stations, and all finishers receive a commemorative medal.

Registration is available on race day, and detailed course maps can be found on the event's website. Visit the organization's website for the most recent information.