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San Lorenzo River Trail Run

Santa Cruz, United States • 12 Jul 2025

The San Lorenzo River Trail Run, held in Santa Cruz, California, offers a scenic trail running experience through towering 1500-year-old Coastal Redwoods, stream canyons, meadows, and diverse forest landscapes. The event features multiple race distances including 10K, Half Marathon, 30K, Marathon, 50K, and a free Kid's Run for children six years and younger. Courses are well-marked with color-coded ribbons and include multiple crossings of the San Lorenzo River for longer distances. The terrain consists mainly of single-track trails and dirt roads with significant elevation gains, making it a challenging and rewarding event. Aid stations provide hydration and snacks, and the race promotes environmental responsibility by being cupless. Visit the organization's website for the most recent information.

United States California Santa Cruz

Race information

Registration
50 km
5175 m+
50k
26 mi
4350 m+
Marathon
30 km
3000 m+
30k
13 mi
2175 m+
Half Marathon
10 km
800 m+
10k
4 mi
Kid's Run (6yo & Younger, 1/4 Mi) - Free!
Visit the organization's website for the most recent information.
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