Race Discovery
Iao Valley 5K & 10K
Iao Valley 5K & 10K logo

Iao Valley 5K & 10K

Wailuku, Hawaii, United States View on map
Jul 18, 2027 (Pacific/Honolulu local time)
Running

About this race

Come run a scenic route through Iao Valley State Park. The run will start near the intersection of Church St & Vineyard St. and will head up W. Vineyard St., onto Main St. and up to the scenic Iao Valley State Park. After the turn around, enjoy a rolling downhill back to Wailuku.   

Registration will open May 11, 2026.  Register by June 11 to guarantee shirt size.

Packet Pick-Up - Saturday July 18 from noon until 4pm at the The Parlay, 2086 Main St. Wailuku.  Come visit them Sunday after the race for post-race nutrition.  Show your bib to receive a special discount!!

Parking is conveniently located at the Wailuku Parking Garage.  2 hours free with valid Hawai'i ID or $1/hr.

Pick your distance

Running

5K

Runners follow Vineyard Street to Main Street up to the half way point which will be marked with a 5K turn around sign. After the turnaround, enjoy a downhill run back to Wailuku.

Jul 18, 2027 5K 7:10 AM
$45.00
Open

10K

Runners follow Vineyard Street to Main Street up to the scenic Iao Valley State Park. After the turnaround, enjoy a rolling downhill run back to Wailuku.

Jul 18, 2027 10K 7:00 AM
$60.00
Open

Typical race-day weather

Based on 2 years of Open-Meteo archive data for this event's race dates in Wailuku, plus the 3 days either side.

Temp (°C)
Minimum temperature (race-week average) 22.5° / Maximum temperature (race-week average) 30.6°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-week average) 22.5° / Maximum feels like — heat index / wind chill (race-week average) 35.6°
Peak wind (km/h)
Strongest wind of the day (race-week average)
15.0
Precip (mm)
Precipitation over the day (race-week average)
0.0mm
Humidity
Mean relative humidity (race-week average)
66.5%
Sunrise
Sunrise at the start line on July 18, 2027 (HST)
Sunset
Sunset at the start line on July 18, 2027 (HST)
Daylight
Hours between sunrise and sunset on race day
13h 15m

The sun rises at 5:54 AM and sets at 7:09 PM local time (HST) in Wailuku on July 18, 2027 — 13h 15m 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 Wailuku

Different organizers, within 40 miles, in the next three months

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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, 3 Wailuku events

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