Race Discovery
BIRR Hilo Bay 5k and 10k
BIRR Hilo Bay 5k and 10k logo

BIRR Hilo Bay 5k and 10k

Hilo, Hawaii, United States View on map
Sep 05, 2026 (Pacific/Honolulu local time)
Running

About this race

BIG ISLAND ROAD RUNNERS HILO BAY 5K/10K RUN WALK

Join us on Saturday, September 5th, 2026. Race will start at 7:30 am at Reeds Bay on Banyan Drive in Hilo and finish back at the same place.

*Course Map to follow:)

**Tee-shirts and medals for all finishers. Awards for overall finishers and age group finishers.

***Aid stations and snacks provide.

****Online registration closes on September 3th at 1PM. Big Island Road Runners (BIRR) members receive a $5.00 discount at registration. Student/Military Discount pricing available:)

*****Packet pickup and late registration will be at Lili'uokalani Park/Coconut Island area on September 4th, 2026 between 3:30 pm and 5:30 pm. There will be late registration and packet pick-up on race day up until 7:00 am.

Come Join the FUN!!

Pick your distance

Running

BIRR Hilo Bay 5K

5 K walk or run

Sep 05, 2026 5K 7:30 AM
$35.00
Closed

BIRR Hilo Bay 10K

10 K walk or run

Sep 05, 2026 10K 7:30 AM
$40.00
Closed

BIRR Hilo Bay 5K Students, and Military

5 K walk or run students, military

Sep 05, 2026 5K 7:30 AM
$25.00
Closed

BIRR Hilo Bay 10K Students, and Military

10 K walk or run students, military

Sep 05, 2026 10K 7:30 AM
$30.00
Closed

Typical race-day weather

Based on 6 years of Open-Meteo archive data for this event's race dates in Hilo, plus the 3 days either side.

Temp (°C)
Minimum temperature (race-week average) 20.9° / Maximum temperature (race-week average) 27.1°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-week average) 20.9° / Maximum feels like — heat index / wind chill (race-week average) 29.1°
Peak wind (km/h)
Strongest wind of the day (race-week average)
15.0
Precip (mm)
Precipitation over the day (race-week average)
6.0mm
Humidity
Mean relative humidity (race-week average)
79.4%
Sunrise
Sunrise at the start line on September 5, 2026 (HST)
Sunset
Sunset at the start line on September 5, 2026 (HST)
Daylight
Hours between sunrise and sunset on race day
12h 26m

The sun rises at 6:05 AM and sets at 6:31 PM local time (HST) in Hilo on September 5, 2026 — 12h 26m 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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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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