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15 marathons found for Ultra marathon, Japan. Keep the list broad first, then tighten the filters when a race looks realistic.
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Japan
26SEP
ULTRA
Flash Trail Challenge Autumn - 79K
Japan
SEP
Japan
27SEP
ULTRA
Tsukubarenzan trailrun in ISHIOKA - 71K
Japan
SEP
Japan
04OCT
ULTRA
7th Mine Akiyoshidai Geopark Ultra Marathon - 100km
Japan
OCT
Japan
09OCT
ULTRA
6th Lake Biwa 100 - 169km
Japan
OCT
Japan
11OCT
ULTRA
4th Aizu Yanaizu Akabeko Marathon - 12h
Japan
OCT
Japan
18OCT
ULTRA
33. Ultramarathon Okumusashi Quintet - 70km
Japan
OCT
Japan
30OCT
ULTRA
Lake Biwa 100 - 163K
Japan
OCT
Japan
01NOV
ULTRA
Nakanoto Treasure Trailrun
Japan
NOV
Japan
14NOV
ULTRA
Kumagawa Revival Trail - 97K
Japan
NOV
Japan
20NOV
ULTRA
20th Nagasaki Tachibana Gulf Coast Super Maranic 276 - 276km
Japan
NOV
Japan
21NOV
ULTRA
20th Nagasaki Tachibana Gulf Coast Super Maranic 320 - 320km
Japan
NOV
Japan
22NOV
ULTRA
20th Nagasaki Tachibana Gulf Coast Super Maranic 103 - 103km
Japan
NOV
Japan
18APR
ULTRA
Kasumigaura Marathon
Japan
APR
Japan
23APR
ULTRA
Mt.Fuji 100
Japan
APR
Japan
02MAY
ULTRA
3rd World Heritage Pilgrimage Triangle 225km - 225km
Japan
MAY
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