ZombieRunner Quarry Lakes
Race Day Weather
Mild temps, cautious hydration needed
Runners will face temperatures starting at 59°F and rising to 62°F by the finish. With humidity at 65%, hydration will be crucial, especially in the later miles. Wind remains light, but a headwind is expected in Mile 9, making pacing adjustments important. Rain is possible during pre-race, suggesting a throwaway layer for the wait.
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Race Info
ZombieRunner Quarry Lakes is an annual road race held each December (moving to a November date starting in 2026) at Quarry Lakes Regional Recreation Area in Fremont, California. The route follows the Alameda Creek Trail toward the mouth of Niles Canyon on a flat, mostly paved and crushed-rock course. The event is organized by Coastal Trail Runs, which also runs the ZombieRunner Halloween Marathon in San Jose. The half marathon course is USATF certified (CA19047RS); the race previously offered a marathon distance but that option has been discontinued as of the 2025 and 2026 editions.
