2021 - BIRR Hilo Bay 5k and 10k
2021 distances
Running
BIRR Hilo Bay 5K
Birr Hilo Bay 10K
Birr Hilo Bay 5K Kids
Birr Hilo Bay 10K Kids
Race-day weather
Conditions on September 12, 2021 — historical Open-Meteo data.
The sun rises at 6:07 AM and sets at 6:25 PM local time (HST) in Hilo on September 12, 2021 — 12h 18m 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.
Reviews
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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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