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9th Okinawa 100K Ultra Marathon (第9回沖縄100Kウルトラマラソン)

Name: 9th Okinawa 100K Ultra Marathon (第9回沖縄100Kウルトラマラソン)
Start: 2026-12-20
End: 2026-12-20
Location: Yonabaru, ...

Yonabaru, ..., Okinawa, Japan

calendar_today 20 Dec, 2026

directions_run Running

language Official Website

sell $37.92 – $135.88

About the Event

Starting in Yonabaru, in the southern part of Okinawa's main island, this coastal course turns around at Itoman City Hall. Enjoy views of Hyakuna Beach and Ou Island, and don't miss the Nirai Bridge and Kanai Bridge, a major highlight passed near the end of the course. Take in dynamic tropical scenery you can rarely see outside Okinawa. Entry fees: 100km ¥21,500, 50km ¥13,500, 22.5km ¥6,000, 100km Pair Entry ¥41,000, 50km Pair Entry ¥25,000, Student Runner discount (age 25 and under: ¥1,000 off each category)

Races Offered

100km

Dec 20, 2026

straighten

Distance — 100K

terrain

Type — Running

timer

84 days remaining

sell

$135.88

50km

Dec 20, 2026

straighten

Distance — 50K

terrain

Type — Running

timer

84 days remaining

sell

$85.32

Nirai Kanai Run & Walk (22.5km)

Dec 20, 2026

straighten

Distance — 22.5K

terrain

Type — Running

timer

84 days remaining

sell

$37.92

Weather History

These values represent the 3-year monthly averages for December in Yonabaru, ....

thermostat Temperature

17.4° / 21.5°

wb_sunny Feels like

14.9° / 19.9°

light_mode Avg sunshine hours

6h 29m

water_drop Avg rainfall

4.2 mm

ac_unit Avg snowfall

—

air Avg wind speed

16.7 km/h (Gentle breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Low (2.4)

humidity_mid Humidity

70.3%

wb_twilight Sunrise

07:08

nightlight Sunset

17:39

Runner Reviews

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9th Okinawa 100K Ultra Marathon (第9回沖縄100Kウルトラマラソン)

About the Event