BIRR Monster Mash Mile Fun Run
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
Typical race-day weather
Based on 3 years of Open-Meteo archive data for this event's race dates in Hilo, plus the 3 days either side.
The sun rises at 6:21 AM and sets at 5:46 PM local time (HST) in Hilo on October 31, 2026 — 11h 25m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
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Other races near Hilo
Different organizers, within 40 miles, in the next three months
🏃 Plan Your Next Race in Hilo
Find upcoming events by distance:
- Hilo 5K Races 5 races
- 10K Run Events in Hilo 2 races
- Hilo Running Calendar 2026 7 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 7 Hilo events
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