San Lorenzo River Trail Run
Race Day Weather
Cool start, warming trend
Runners will face a temperature rise from 54°F at the start to a peak of 74°F. With average humidity at 68% and a light wind from the W, pacing adjustments may be necessary as the race progresses. It's advisable to hydrate frequently and consider starting conservatively to manage the heat later on.
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Race Info
The San Lorenzo River Trail Run is an annual trail race in Santa Cruz, California, organized by Coastal Trail Runs. Held each July, it starts and finishes at Harvey West Park and offers 10K, Half Marathon, 30K, Marathon, and 50K distances, with the marathon run as two half-marathon loops. The course crosses the San Lorenzo River multiple times and passes through coastal redwood forest, stream canyons, and chaparral ridges toward Henry Cowell Redwoods State Park.