Run at your own pace during the Hawaii Kai Ultra Run XTreme 2025, happening July 26–27 at Kalama Valley Park, Honolulu. The event features seven distance options—from Half Marathon up to ultra challenges (50K, 50 miles, 100K, 100 miles)—all looping a challenging 9-mile course that includes scenic oceanfront routes and the notorious "Heartbreak Hill," with aid stations every ~2.5 miles. . New in 2025 are wave-start times for Half, 30K, and Marathon, though all runners may sign in and begin anytime before noon Sunday. . The “choose-your-own-start” format and lack of cutoffs offer ultimate flexibility for solo runners, travelers, and multi-day ultra enthusiasts.
Races
100 miles
100 km
50 miles
50 km
Marathon
30 km
Half Marathon
Race Date:
26 July, 2025
Also scheduled for July 26–27, 2025, the 30K takes place on the same 9-mile loop course around Hawaii Kai, organized by the Hawaii Running Project. Participants choose their start time and enjoy well-supported aid stations, with no enforced cutoffs for those starting before noon Sunday.
Weather based on historical averages.
FAQs
What is the Hawaii Kai Ultra Run XTreme 30K?
How long is the Hawaii Kai Ultra Run XTreme 30K?
Where does the Hawaii Kai Ultra Run XTreme 30K take place?
What is the elevation gain of the Hawaii Kai Ultra Run XTreme 30K?
How can I prepare for the Hawaii Kai Ultra Run XTreme 30K?
How do I choose the right training plan for the Hawaii Kai Ultra Run XTreme 30K?
Also scheduled for July 26–27, 2025, the 30K takes place on the same 9-mile loop course around Hawaii Kai, organized by the Hawaii Running Project. Participants choose their start time and enjoy well-supported aid stations, with no enforced cutoffs for those starting before noon Sunday.
The Hawaii Kai Ultra Run XTreme 30K is 30km long.
The Hawaii Kai Ultra Run XTreme 30K takes place in Honolulu, HI, USA.
Runna classifies the Hawaii Kai Ultra Run XTreme 30K elevation profile as Flat.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Hawaii Kai Ultra Run XTreme 30K?
Also scheduled for July 26–27, 2025, the 30K takes place on the same 9-mile loop course around Hawaii Kai, organized by the Hawaii Running Project. Participants choose their start time and enjoy well-supported aid stations, with no enforced cutoffs for those starting before noon Sunday.
How long is the Hawaii Kai Ultra Run XTreme 30K?
The Hawaii Kai Ultra Run XTreme 30K is 30km long.
Where does the Hawaii Kai Ultra Run XTreme 30K take place?
The Hawaii Kai Ultra Run XTreme 30K takes place in Honolulu, HI, USA.
What is the elevation gain of the Hawaii Kai Ultra Run XTreme 30K?
Runna classifies the Hawaii Kai Ultra Run XTreme 30K elevation profile as Flat.
How can I prepare for the Hawaii Kai Ultra Run XTreme 30K?
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Hawaii Kai Ultra Run XTreme 30K?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
More
Sport:
Running
Tags:
Nature
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Hawaii Kai Ultra Run XTreme 2025 or Hawaii Running Project. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Hawaii Kai Ultra Run XTreme 2025 website.
