ZombieRunner Halloween Marathon
Race Day Weather
Mild start, warming trend
Runners will face a temperature increase from 54°F at the start to a peak of 70°F. With a light breeze from the S, wind will have minimal impact. Humidity at 63% suggests a moderate feel, so pacing adjustments may be necessary as temperatures rise. Staying hydrated early will be crucial.
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Race Info
The ZombieRunner Halloween Marathon is a costume-friendly road race held each Halloween weekend at Hellyer County Park in San Jose, California. Runners choose from a marathon, half marathon, 10K or 5K, all following a flat, paved route along the Coyote Creek Trail to Metcalf Park and back. The event is organized by Walnut Creek-based Coastal Trail Runs, which stages roughly 30 races a year across the Bay Area. Both the marathon and half marathon courses are USATF certified.
