Calero Trail Run - Spring

MAY

30

2026

A multi-distance trail running event at Calero County Park on May 30, 2026, featuring single track, hills, aid stations, and a commemorative medal for finishers. Distances range from a Kids Run up to a 50K described as a Western States trainer.

Sat 30 May 2026

San Jose, California

Website

50 kilometers Marathon 25 kilometers Half Marathon 15 kilometers 10 kilometers 5 kilometers

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Calero Trail Run - Spring

The Calero Trail Run - Spring takes place on May 30, 2026 at Calero County Park in San Jose, CA, with the park address listed as 23205 McKean Road. The event offers a range of trail distances and organized course support.

The course features single track, significant hills, and dirt paths. The 50K is described as a trainer for Western States and includes oak trees, exposed sections, heat training conditions, and panoramic vistas. Courses will be marked with ribbons, signs, and gypsum.

Support and logistics include aid stations along the routes and a commemorative medal for all finishers. Bib pick-up and registration occur on race day, and race day registration is available. Detailed course maps are provided for each distance.

Distances available:

50K
Marathon
25K
Half Marathon
15K
10K
5K
Mile
Kids Run

Participants are advised to dress appropriately for an endurance trail run. Additional course details and maps are available from the event organizer. Visit the organization's website for the most recent information.

50 km

50k

Marathon

25 km

25k

Half Marathon

1/2 Marathon

15 km

15k

10 km

10k

5 km