ULTRAMARATHONS — JAPAN

Ultramarathons in Japan

We list 86 ultramarathons across 38 prefectures of Japan, 29 of them upcoming. The next one is 2026 Okinawa Main Island Circuit Survival Run on Nov 20, 2026. Compare dates, entry fees and deadlines to pick your next race.

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UPCOMING

Upcoming races (29)

November 20265

11.20FRI 2026
RACE IN 9D
Ultra +1

2026 Okinawa Main Island Circuit Survival Run

Okinawa · Ultra Marathon

—
1.5/ 5.0
11.20FRI 2026
RACE IN 9D
Ultra +4

Tachibana Bay Super Maranic 273: 2026 Spring Nomozaki-Isahaya Stage Race

Nagasaki · Ultra Marathon

—
3.0/ 5.0
11.21SAT 2026
RACE IN 10D
Ultra +3

FINAL 2026 Fall Hyper Double Division & Shimabara Stage

Nagasaki · Ultra Marathon

—
3.0/ 5.0
11.21SAT 2026
RACE IN 10D
Ultra +2

The 5th Okinerabu Island Uturu-sha Marathon

Kagoshima · Ultra Marathon

—
0.8/ 5.0
11.23MON 2026
RACE IN 12D
Ultra +1

The 3rd Miyakojima Ultra 100-Mile Race

Okinawa · Ultra Marathon

160.9 KM
3.5/ 5.0

December 20261

12.13SUN 2026
ENTRY: 4D LEFT
Ultra +1

Tobishima Ultra Marathon 2025 in Setouchi and Kure

Hiroshima · Ultra Marathon

—
1.5/ 5.0

January 202714

1.16SAT 2027
Ultra +4

The Reihishi Trail: Kyoto to Nikko—570 km Journey Run 2026

Kyoto · Ultra Marathon

—
3.0/ 5.0
1.16SAT 2027
Ultra

The 7th Autumn in Okumusashi/Chichibu Journey Run 142k

Saitama · Ultra Marathon

142 KM
3.4/ 5.0
1.16SAT 2027
Ultra +3

The 8th Utsukushima, Fukushima Journey Run

Fukushima · Ultra Marathon

—
1.5/ 5.0
1.16SAT 2027
Ultra +1

The 3rd Modern Japan “Silk Road” Journey Run

Gunma · Ultra Marathon

—
3.0/ 5.0
1.16SAT 2027
Ultra +1

1st Annual "The Divine Lord's Escape from Iga" 160km Journey Run

Osaka · Ultra Marathon

160 KM
4.0/ 5.0
1.16SAT 2027
Ultra +3

The 14th Arakawa Riverside Journey Run

Saitama · Ultra Marathon

—
3.0/ 5.0
1.16SAT 2027
Ultra +5

2025 Honshu Cross-Island Foot Race: Aomori to Shimonoseki (1,550 km)

Aomori · Ultra Marathon

—
3.0/ 5.0
1.16SAT 2027
Ultra +3

The 13th Tsunan Ultra Marathon

Niigata · Ultra Marathon

—
1.5/ 5.0
1.16SAT 2027
Ultra +1

The 21st Toda-Sai-ko Full Marathon & Ultra Marathon

Saitama · Ultra Marathon

—
1.5/ 5.0
1.16SAT 2027
Ultra +1

The 32nd Okumusashi Ultra Marathon

Saitama · Ultra Marathon

—
3.0/ 5.0
1.16SAT 2027
Ultra +1

The 3rd Noto no Kuni Journey Run

Ishikawa · Ultra Marathon

—
1.5/ 5.0
1.16SAT 2027
Ultra +2

The 10th Michinoku Tsugaru Journey Run: 262K / 177K / 85K

Aomori · Ultra Marathon

262 KM
4.0/ 5.0
1.17SUN 2027
Ultra +1

Yamatsuto Trail Ultra Jog Trip since 2018

Fukuoka · Ultra Marathon

—
1.5/ 5.0
1.31SUN 2027
Ultra +2

Episode 4: The Waterway of Minuma—Upstream

Saitama · Ultra Marathon

—
1.5/ 5.0

February 20271

2.07SUN 2027
Ultra +2

The 5th Amami Yori Yori Run AMAMI yori yori RUN 2026

Kagoshima · Ultra Marathon

—
0.8/ 5.0

April 20275

4.04SUN 2027
Ultra +1

Ultra Jog Trip: Tour of Pottery Villages since 2013

Nagasaki · Ultra Marathon

—
1.5/ 5.0
4.18SUN 2027
Ultra +1

The 9th Muroto-Anan Coast Quasi-National Park Ultra Marathon

Kochi · Ultra Marathon

—
1.5/ 5.0
4.18SUN 2027
ENTRY: 16D LEFT
Ultra +3

The 26th Oku-Kumano Ida-Ten Ultra Marathon

Wakayama · Ultra Marathon

—
1.5/ 5.0
4.18SUN 2027
Ultra +3

Suo-Oshima Ultra Marathon 2026

Yamaguchi · Ultra Marathon

—
1.5/ 5.0
4.25SUN 2027
Ultra +3

The 7th Yamadera-Zao Ultra Journey

Yamagata · Ultra Marathon

—
1.5/ 5.0

May 20272

5.01SAT 2027
Ultra +2EN

The 3rd Sanriku Stage Race SRS200/100

Iwate · Ultra Marathon

—
3.0/ 5.0
5.16SUN 2027
Ultra +2EN

Hoshino-go Yatsugatake Nobeyama Highlands 100km Ultra Marathon

Nagano · Ultra Marathon

100 KM
1.5/ 5.0

September 20271

9.26SUN 2027
Ultra +4

The 29th Muraoka Double Full Ultra Run

Hyogo · Ultra Marathon

—
1.5/ 5.0

DATE TBA

Date to be announced (10)

HELD RECENTLY

Held recently — next date pending (47)

Sorted by when they're usually held, soonest first. We update the next date once the organizer announces it.

Other events

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