runsignup.com

Tantalus 10-Mile Challenge

Honolulu, Hawaii, United States

calendar_today 27 Sep, 2026

directions_run Running

sell $50.00

About the Event

This is a one-loop course. Start at 6:30 a.m. on Makiki Heights Drive near Halau Kumana School, heading uphill on Makiki Heights Drive, branching onto Tantalus Drive uphill for about five miles, then onto Round Top Drive heading downhill for more than four miles to a right turn onto Makiki Street, and another right onto Makiki Heights Drive, finishing uphill near the starting point. There is no separate packet pickup, get your bib number on race morning.

There will be an optional early start at 6:00 a.m. for walkers and runners who plan to finish in more than 2.5 hours (15-minute miles). There are two requirements for the early start: 1) check in with the timer no later than 5:45 a.m. and 2) bring a light source (flashlight or headlamp) because it will still be dark at start time. Early start participants are not eligible for overall or age group awards.

Races Offered

Tantalus 10 Mile Challenge

Sep 27, 2026

straighten

Distance — 10 Miles

terrain

Type — Running

timer

06:30

sell

$50.00

Weather History

These values represent the 3-year monthly averages for September in Honolulu.

thermostat Temperature

23.1° / 29.8°

wb_sunny Feels like

24.3° / 29.0°

light_mode Avg sunshine hours

11h 38m

water_drop Avg rainfall

0.6 mm

ac_unit Avg snowfall

—

air Avg wind speed

15.6 km/h (Gentle breeze)

opacity Sweat loss rate

Very high

terrain Course conditions

Hard and dry surface

sunny Max UV Index

High (6.0)

humidity_mid Humidity

68.9%

wb_twilight Sunrise

06:18

nightlight Sunset

18:33

About Honolulu

Learn more about the host city, Honolulu.

The capital of Hawaii and its primary point of entry, Honolulu is by far the state's largest city, with 980,000 people—two-thirds of the state's population—residing within the metro area as of 2018. Situated on the southern shore of the island of Oahu, Honolulu serves as the center of government and commerce for the state, the home of the largest airport in the Hawaiian Islands, and the site of the state's best-known tourist destination: Waikiki Beach.