The 2026 ZombieRunner Halloween Half Marathon has concluded.Share your finish2026 Results

ZombieRunner Halloween Half Marathon

Race complete
San Jose, CA, USA · October 31, 2026·
partly-cloudy-day50°·57° high·Light·Dry
9
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ZombieRunner Halloween Half Marathon race day weather

partly-cloudy-day
50°at start
65° high
Breezy
Dry
Your goal
0:00:00

Comfortable temps, big temp swing

Mild 50°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 65°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.

partly-cloudy-night10
partly-cloudy-night10
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day8
partly-cloudy-day7
partly-cloudy-day6
partly-cloudy-day7
partly-cloudy-day6
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partly-cloudy-day7
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Pace Calculator

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Race Plan

Get your personalized ZombieRunner Halloween Half Marathon race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

About the ZombieRunner Halloween Half Marathon

The ZombieRunner Half Marathon runs 13.1 miles on the Coyote Creek Trail, starting and finishing at Hellyer County Park in San Jose. It is an out-and-back on paved asphalt: runners pass the Silver Creek aid station, turn around at the Metcalf Road aid station and come back the same way. The course is relatively flat, marked with directional signage, and USATF-certified. Runners who race in a Halloween costume can enter the costume contest.

Race weekend

Saturday, October 31
8:20 AMKids Run
8:30 AMMarathon (26.2 mi)
8:30 AMHalf Marathon (13.1 mi)
8:45 AM10K (6.2 mi)
8:55 AM5K (3.1 mi)

ZombieRunner Halloween Half Marathon FAQ

When is the 2026 ZombieRunner Halloween Half Marathon?

The 2026 ZombieRunner Halloween Half Marathon will be held on Saturday October 31, 2026.

What is the time limit for the ZombieRunner Halloween Half Marathon?

The time limit for the ZombieRunner Halloween Half Marathon is 7.5 hours.

What will the weather be like for the 2026 ZombieRunner Halloween Half Marathon?

The forecast calls for a high of 65°F and a low of 49°F with a 0% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

What is the weather usually like for the ZombieRunner Halloween Half Marathon?

Over the 6 years racecast.io has race-day weather for (2021 to 2026), it averaged 51°F at the start and 59°F by a typical finish. It has not rained during race hours in any of those years.

What was the hottest ZombieRunner Halloween Half Marathon?

Of the 6 years on record, 2023 was the warmest, reaching 63°F during race hours. The coldest start was 2023, at 47°F.

What was the windiest ZombieRunner Halloween Half Marathon?

Of the 6 years on record, 2021 was the windiest, with wind averaging 6 mph during race hours. The calmest was 2025, at 1 mph.

ZombieRunner Halloween Half Marathon weather history

Based on 6 years of data
Avg Temp
55°F
L:51° H:59°
RunScore
8
Conditions
Rain Freq
0%
0 of 6 yrs
Wind3mph
Dew46°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
50°/57°-
9
2025
partly-cloudy-day
51°/58°-
8
2024
partly-cloudy-day
55°/60°-
7
2023
clear-day
47°/63°-
10
2022
cloudy
56°/57°-
8
2021
partly-cloudy-day
51°/58°-
9