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BIRR Monster Mash Mile Fun Run
BIRR Monster Mash Mile Fun Run logo

BIRR Monster Mash Mile Fun Run

Hilo, Hawaii, United States
Oct 31, 2026
Running

About this race

Come Join us for the second Annual Monster Mash Mile Fun Run. Looking to test your speed or just enjoy a morning stroll. Then come join us for our Monster Mash Mile in Downtown Hilo at Wailoa State Park. *** Wear your best costume in celebration of Halloween:)

*Date: October 31, 2026 with a 9:00 am start for the 1 mile event and 9:30 am start for the kid’s shorter distance race. 

**Location: Wailoa State Park in Downtown Hilo, Pavilion 2.

***Awards: top 3 male and female mile times. Top 1 of Best Costume male and female. Top 1 of stroller male and female. All kids will receive a prize for the kids race.

****Fees: Free for BIRR members and kids12 years and under (fee will drop off in the registration) / $10 donation for non-members.

***Note the "kids" race for those 12 and under will be a 400 yard event:)

** Snacks and water provided.

* Co-Sponsored with Hilo Run Club

Pick your distance

Running

BIRR Monster Mash Mile Fun Run

*Fees: Free for BIRR members and kids under 12 years / $10 for non-members. *Awards: top 3 male and female mile times. Top 1 of Best Costume male and female. Top 1 of stroller male and female. All kids will receive a prize for the kids race. *Location: Wailoa State Park in Hilo (Downtown Hilo), Pavilion 2

Oct 31, 2026 1.6K 9:00 AM
$10.00
Open

Typical race-day weather

Based on 2 years of historical conditions on this event's race dates in Hilo.

Temp (°C)
Minimum temperature (race-day average) 21.1° / Maximum temperature (race-day average) 26.5°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-day average) 21.1° / Maximum feels like — heat index / wind chill (race-day average) 26.5°
Wind (km/h)
Average wind speed (race-day average)
11.1
Precip (mm)
Average precipitation (race-day average)
3.2mm
Humidity
Average relative humidity (race-day average)
81.5%

About Hilo

BIRR Monster Mash Mile Fun Run takes place in Hilo, Hawaii, United States. The local timezone is Pacific/Honolulu.

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Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.

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