Hawaii Kai Ultra Run Half Marathon & Marathon

Saturday, December 14, 2024 • Kalama Valley, HI • Course Map

Brown mountains and valley on Kalama Valley home of Hawaii Kai Ultra Run Xtreme & Half Marathon.

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.

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.

All registered finishers receive certificates and custom awards, while participants and volunteers have the chance to win random gifts from sponsors.

Race Weather & Climate

On December 14th in Honolulu, expect an average high temperature of around 80°F and a low of approximately 67°F. Winter in Honolulu brings mild and pleasant conditions, with warm days and comfortable nights. December typically sees an average rainfall of about 2 inches in Honolulu.

Hawaii Kai Ultra Run Half Marathon Results

Hawaii Kai Ultra Run Xtreme & Half Marathon Course Map

See the race route map on the race director’s website.

Starting Time

You can choose your own starting time on the HKUR, early start option starts at 3:00 am, HST.


Check the race director’s website for fees for the marathon.

Hawaii Kai Ultra Run Half Marathon Registration

You can find the HKUR registration on RunSignup.com.

Official Website


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