Hawaii Kai Ultra Run - Kalama Valley 2025

  • Date Sat 20th December 2025 - Sun 21st December 2025
  • Time 3:00AM HST
  • Location Honolulu, Hawaii
  • Price $32.80 - $48.70
  • Races 7 races
  • Distances Half Marathon, Ultra

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Event summary

Get ready for an exhilarating running experience at the Hawaii Kai Ultra Run in beautiful Honolulu! Scheduled for December 20-21, 2025, this two-day event promises an unforgettable adventure for runners of all levels. Participants can choose from a variety of race distances, including a Half Marathon, 30K, Marathon, 50K, 50 Miles, 100K, or even 100 Miles, making it perfect for both seasoned ultra-runners and those looking to challenge themselves.

The race takes place at Kalama Valley Park, conveniently located at 555 Kealahou St., near the stunning Sandy Beach. The course features a scenic 3.34-mile loop, allowing runners to enjoy the breathtaking views of Hawaii while they compete. With multiple wave start times and a supportive community atmosphere, this event is designed for camaraderie and personal achievement. Join the excitement and be part of this incredible running celebration in paradise! Don’t miss out on the chance to earn finisher medals, certificates, and exclusive HKUR merchandise. Prepare for an unforgettable weekend of running, adventure, and fun in the heart of Hawaii!

Organiser's Description

THE 2025 HAWAII KAI ULTRA RUN WILL BE HELD ON DECEMBER 20 & 21, 2025 (SATURDAY & SUNDAY); ONE WEEK AFTER THE HONOLULU MARATHON (12/14/2024).



The CHECK-IN and START/FINISH is at Kalama Valley Park located at 555 Kealahou St. in Hawaii Kai near Sandy Beach.



Street PARKING where available along Kealahou St.



BUS ROUTE #23 stops at Bus Stop ID #288 across from the Check-In tent at Kealahou St. and Mokuhano St. For more information, please visit the The Bus website at: https://www.thebus.org



CHOOSE YOUR DISTANCE: HALF MARATHON, 30K, MARATHON, 50K, 50 MILES, 100K OR 100 MILES.

The Hawaii Kai Ultra Run route is a 3.34-mile loop (3 loops is 10 miles). The Start/Finish is in the middle of the loop. From the start, runners head mauka on Kealahou St. until the turnaround at Kealahou St. and Ipuai St. Runners then head makai on Kealahou St. towards Sandy Beach and turnaround before Kalaniana'ole Hwy to return back towards the Start/Finish tent to complete a loop. Turnaround points will be clearly marked with cones and signs.



COURSE MAP: https://goo.gl/maps/YA6HRho5ruhhY8G78



CHOOSE YOUR START TIME:

If you enjoy running with your peers, we are offering Corral selections with set wave start times. Selections may be made when registering for the Half Marathon, 30K, and Marathon distances which are as follows:



Saturday, 12/20/2025 - 6am Wave
Saturday, 12/20/2025 - 7pm Wave
Sunday, 12/21/2025 - 6am Wave

Or you can simply show up and sign in with your own start time at the start/finish tent for all distances. Start Saturday (3AM or after) or Sunday (most people start between 3AM and 7AM on Saturday morning.) You must start before noon on Saturday and remain on the course to be eligible for no cutoff time. ALL DISTANCES MUST BE STARTED BY NOON ON SUNDAY, 12/21/2025 UNLESS ARRANGEMENTS HAVE BEEN MADE WITH THE RACE DIRECTOR IN ADVANCE.

IMPORTANT: If you are planning to arrive early in the morning (before sunrise), please be quiet. The route is in a residential neighborhood, and many residents are still sleeping. Mahalo in advance!



OTHER INFORMATION:

This is a Show Up and Sign In event with no packet pick up.



HYDRATION: Water, ice and snacks will also be provided at the Start/Finish tent.



RESTROOMS: Public restrooms are available 24 hours at the Start/Finish tent.



CERTIFICATES/SHIRTS:

Certificates, medals, and stickers will be awarded to all registered finishers. HKUR 2025 Finisher shirts will be available for purchase for $25 at time of registration by 12/1/2025. A LIMITED SUPPLY OF HKUR SHIRTS MAY BE AVAILABLE FOR PURCHASE ON RACE DAY FOR $30 (not guaranteed).



Check out the HKUR Store for other HKUR merchandise available for purchase in advance and on race day: https://runsignup.com/Race/Store/HI/Honolulu/HawaiiKaiUltraRunKalamaValley.



Follow us on Instagram @hawaii.kai.ultra.run



*Note: This event is a 50 States Marathon Club qualifier and will count towards your totals.

Races

  • Half Marathon

    Incl. $2.80 Fee

    Sat 20th December 2025 (3:00AM HST)

    $32.80

  • 30k

    Incl. $2.80 Fee

    Sat 20th December 2025 (3:00AM HST)

    $32.80

  • Marathon

    Incl. $3.10 Fee

    Sat 20th December 2025 (3:00AM HST)

    $38.10

  • 50k

    Incl. $3.40 Fee

    Sat 20th December 2025 (3:00AM HST)

    $43.40

  • 50 Miles

    Incl. $3.40 Fee

    Sat 20th December 2025 (3:00AM HST)

    $43.40

  • 100k

    Incl. $3.70 Fee

    Sat 20th December 2025 (3:00AM HST)

    $48.70

  • 100 Miles

    Incl. $3.70 Fee

    Sat 20th December 2025 (3:00AM HST)

    $48.70

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Location

555 Kealahou St, Honolulu, 96825, HI, United States

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