ZombieRunner Quarry Lakes
Race Day Weather
Cool start, warming fast
Runners will face a temperature rise from 52°F at the start to 66°F by the finish, with 52% humidity and a dew point of 43°F. Light winds from the WSW will shift to a tailwind in the final stretch. Pacing should be conservative early, especially during Mile 9 where a headwind will make conditions tougher. Runners should stay hydrated as the temperatures increase.
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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.
