ZombieRunner Halloween Marathon
Race Day Weather
Cool start, warming trend ahead
Runners will face a temperature rise from 52°F at the start to 71°F by the finish, with average humidity at 57%. Wind will be light, mostly crosswind, which should not significantly impact pacing. As temperatures climb, it's advisable for runners to start conservatively and adjust their hydration strategy, especially in the later laps.
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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.