halfmarathon-hero-races

Hawaii Kai Ultra Run – Kalama Valley 2025

Home » Races » Hawaii » Honolulu » Hawaii Kai Ultra Run – Kalama Valley 2025
Date

Dec 20, 2025

Starting Time

3:00 AM

Course

Road

Fees

$30+

Location

Honolulu

Participants

1-100

Terrain

Challenging

Environment

Oceanfront

Temperature
High: 80°
/ Low: 67°
Overview

Prepare for an extraordinary running experience at the Hawaii Kai Ultra Run Half Marathon – Kalama Valley, set to unfold on December 14th and 15th, 2024, just one week after the Honolulu Marathon.

The event hosts a range of distances to suit every runner’s preference – from the half marathon to the 100 mile distance.

The unique feature of this race is the flexibility in choosing your start time. Whether you opt for an early morning start at 3:00 AM on Saturday or prefer a more leisurely pace on Sunday morning, the choice is yours.

Half-Marathon

Course Description

The check-in point at Kalama Valley Park near Sandy Beach provides a central hub, featuring a start, finish, aid station tent with essential supplies like ice, drinks, and food.
The course, nestled near Sandy Beach in Hawaii Kai, is designed for camaraderie and support. Runners will embark on loops, starting with an out-and-back toward the back of Kalama Valley and another toward the ocean, ensuring ample interaction among participants. Each full loop covers 3.34 miles, with the course remaining open until the final runner completes their journey on Sunday night.

Ready to sign up?

Train with Runna

Use code HALF for 2 weeks FREE

Ready to sign up?

Half marathon news, reviews, and discounts right to your inbox

Half Marathon Guide's 'Perfect For'

Let others know what makes this race so special.