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Calero Trail Run - Spring

San Jose, United States • 31 May 2025

The Calero Trail Run - Spring is a trail running event held at Calero County Park in San Jose, California, featuring multiple race distances including a Kids Run, 5K, 10K, 15K, half marathon, 25K, marathon, and 50K. The course offers challenging single tracks, hills, dirt paths, and scenic vistas, making it suitable for various skill levels. Participants can enjoy well-marked routes with aid stations and receive a commemorative medal upon finishing. The event promotes endurance and outdoor activity, attracting runners looking for a scenic and demanding trail experience in springtime. Registration is available on race day, and the event emphasizes safety and fun for all participants. Visit the organization's website for the most recent information.

United States California San Jose

Race information

Website Registration
50 km
50k
26 mi
Marathon
25 km
25k
13 mi
1/2 Marathon
15 km
15k
10 km
10k
5 km
Mile
Kids Run
Visit the organization's website for the most recent information.
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