Calero Trail Run - Spring

MAY

30

2026

Trail race at Calero County Park in San Jose offering distances from a kids mile to a 50K. Routes feature single track, hills, marked courses and aid stations, and all finishers receive a commemorative medal.

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 is scheduled for Saturday, May 30, 2026, at Calero County Park, 23205 McKean Road, San Jose, CA 95120. The event offers a range of trail distances and is staged on park trails and dirt paths.

Distances include:

50K
Marathon
25K
1/2 Marathon
15K
10K
5K
Mile
Kids Run

The course features single track, hills, and dirt paths. Organizer information describes sections with oak trees, exposed terrain, and panoramic vistas; the 50K is noted as a trainer for Western States and as providing heat training opportunities. Courses will be marked with ribbons, signs, and gypsum.

Race logistics include bib pick-up and registration on race day, with race day registration available. Course maps are provided separately for each distance. Aid stations are available along the routes. All finishers receive a commemorative medal. Registration closes on Saturday, May 30, 2026. 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