夏SUMMER
Entry Closed
Nagano
July 18, 2026
OSJ ONTAKE100
EntryNovember 14, 2025 〜 December 12, 2025 +3 more
Ultra MarathonHillyScenic
Distance
163km、109km
Entry Fee
¥19,000〜
2026 Season
Marathon Races
87 races listed across Japan
48 races
夏SUMMER
Entry Closed
Yamanashi
July 24, 2026
FUJI MOUNTAIN RACE
EntryMarch 28, 2026 〜 April 6, 2026
Distance
21km、15km
Entry Fee
¥14,000〜
夏SUMMER
Entry Open
Nagano
August 28, 2026
SHIGA KOGEN 100
EntryApril 5, 2026 〜 July 27, 2026
Ultra MarathonFirst UltraScenic
Distance
100km、40km、18km
Entry Fee
¥7,500〜
夏SUMMER
Entry Closed
Hokkaido
August 30, 2026
Hokkaido Marathon
EntryMarch 29, 2026 〜 April 24, 2026
HokkaidoSummer RaceLarge Scale
Distance
42.195km
Entry Fee
¥16,500
秋AUTUMN
Closing Soon
Hokkaido
September 6, 2026
Wakkanai Peace Marathon
EntryApril 1, 2026 〜 June 30, 2026
日本最北端絶景Coastal
Distance
42.195km
Entry Fee
¥10,000
秋AUTUMN
Entry Open
Yamanashi
September 13, 2026
Mt.FUJI CLIMB RUN
EntryApril 24, 2026 〜 July 31, 2026
Distance
12km
Entry Fee
¥15,000
秋AUTUMN
Entry Closed
Akita
September 20, 2026
TAZAWAKO MARATHON
EntryApril 1, 2026 〜 May 27, 2026
Distance
42.195km、20km、10km
Entry Fee
¥6,000〜
秋AUTUMN
Entry Closed
Niigata
September 21, 2026
SHINETSU FIVE MOUNTAINS TRAIL 100mile/110km
EntryApril 8, 2026 〜 April 15, 2026
Ultra Marathon
Distance
163km、112km
Entry Fee
¥35,000〜
秋AUTUMN
Entry Open
Hokkaido
September 27, 2026
Okhotsk Abashiri Marathon
EntryApril 1, 2026 〜 July 16, 2026
Distance
42.195km
Entry Fee
¥12,000
秋AUTUMN
Closing Soon
Akita
September 27, 2026
Latitude 40° Akita Nairiku Resort Cup 100km Challenge Marathon
EntryApril 1, 2026 〜 June 30, 2026
Ultra MarathonHillyLocal Aid
Distance
100km、70km、50km
Entry Fee
¥18,000〜
秋AUTUMN
Entry Open
Hokkaido
September 27, 2026
Asahikawa Half Marathon
EntryApril 1, 2026 〜 July 26, 2026
HokkaidoScenicLocal Food
Distance
21.0975km、10km
Entry Fee
¥4,500〜
秋AUTUMN
Closing Soon
Iwate
September 27, 2026
Ichinoseki International Half Marathon
EntryApril 1, 2026 〜 June 30, 2026
Flat CourseJAAF CertifiedFast Course
Distance
21.0975km、10km
Entry Fee
¥6,000
秋AUTUMN
Entry Open
Kanagawa
October 4, 2026
East Japan Half Marathon
EntryApril 1, 2026 〜 August 17, 2026
Flat CourseBeginner FriendlySightseeing
Distance
21.0975km、8km
Entry Fee
¥3,500〜
秋AUTUMN
Entry Open
Iwate
October 4, 2026
Iwate Morioka City Marathon
EntryApril 1, 2026 〜 July 20, 2026
Distance
42.195km
Entry Fee
¥12,000
秋AUTUMN
Closing Soon
Hokkaido
October 4, 2026
Sapporo Marathon
EntryMay 15, 2026 〜 May 22, 2026 +3 more
Distance
21.0975km、10km
Entry Fee
¥5,000〜
秋AUTUMN
Closing Soon
Niigata
October 11, 2026
NIIGATA CITY MARATHON
EntryApril 8, 2026 〜 June 30, 2026
Distance
42.195km
Entry Fee
¥12,500
秋AUTUMN
Entry Open
Nagasaki
October 17, 2026
IKI ULTRA MARATHON
EntryApril 10, 2026 〜 July 17, 2026
Ultra Marathon
Distance
100km、50km
Entry Fee
¥15,000〜
秋AUTUMN
Entry Open
Yamagata
October 18, 2026
Nagai Marathon
EntryMay 14, 2026 〜 August 18, 2026
Distance
42.195km、21.0975km
Entry Fee
¥5,000〜
秋AUTUMN
Entry Closed
Tokyo
October 18, 2026
Tokyo Legacy Half
EntryMay 18, 2026 〜 May 25, 2026 +1 more
Distance
21.0975km
Entry Fee
¥13,200
秋AUTUMN
Entry Closed
Ishikawa
October 25, 2026
Kanazawa Marathon
EntryApril 10, 2026 〜 May 20, 2026
Rich Local AidCastle TownScenic
Distance
42.195km
Entry Fee
¥14,000
秋AUTUMN
Entry Closed
Ibaraki
October 25, 2026
Mito Komon Manyu Marathon
EntryApril 16, 2026 〜 April 22, 2026 +1 more
ScenicSightseeing
Distance
42.195km
Entry Fee
¥10,000
秋AUTUMN
Closing Soon
Shizuoka
October 25, 2026
SHIMADA OIGAWA MARATHON
EntryMay 1, 2026 〜 June 30, 2026
Distance
42.195km、10km
Entry Fee
¥5,000〜
秋AUTUMN
Entry Closed
Kanagawa
October 25, 2026
Yokohama Marathon
EntryApril 8, 2026 〜 May 17, 2026
Large ScaleScenicCoastal
Distance
42.195km
Entry Fee
—
秋AUTUMN
Entry Open
Yamaguchi
November 1, 2026
Kaikyo Marathon Shimonoseki
EntryMay 15, 2026 〜 July 12, 2026
海峡絶景Rich Local Aid
Distance
42.195km
Entry Fee
¥12,000
秋AUTUMN
Entry Open
Osaka
November 1, 2026
Osaka Yodo-River Citizens Marathon
EntryApril 17, 2026 〜 September 27, 2026
Distance
42.195km、21km、10km
Entry Fee
¥4,900〜
秋AUTUMN
Closing Soon
Toyama
November 1, 2026
Toyama Marathon
EntryApril 11, 2026 〜 June 30, 2026
ScenicBridge Course
Distance
42.195km
Entry Fee
¥14,000
秋AUTUMN
Entry Closed
Gunma
November 3, 2026
Gunma Marathon
EntryApril 9, 2026 〜 May 13, 2026
Scenic
Distance
42.195km、10km
Entry Fee
¥6,500〜
秋AUTUMN
Nagano
November 8, 2026
Matsumoto Marathon
EntryTBA
Castle TownScenicAlps
Distance
42.195km
Entry Fee
¥12,000
秋AUTUMN
Entry Closed
Chiba
November 8, 2026
Chiba Aqualine Marathon
EntryMarch 22, 2026 〜 April 12, 2026 +1 more
Large ScaleJAAF CertifiedScenic
Distance
42.195km、21.0975km
Entry Fee
¥13,500〜
秋AUTUMN
Entry Closed
Fukuoka
November 8, 2026
Fukuoka Marathon
EntryApril 20, 2026 〜 May 20, 2026
Coastal
Distance
42.195km
Entry Fee
¥16,000
秋AUTUMN
Entry Closed
Okayama
November 8, 2026
Okayama Marathon
EntryApril 16, 2026 〜 May 18, 2026
Castle TownSightseeing
Distance
42.195km
Entry Fee
—
秋AUTUMN
Entry Open
Ibaraki
November 15, 2026
Hitachi Sea Side Marathon
EntryApril 13, 2026 〜 August 31, 2026
Distance
42.195km
Entry Fee
¥10,000
秋AUTUMN
Entry Closed
Hyogo
November 15, 2026
Kobe Marathon
EntryApril 17, 2026 〜 June 1, 2026
Large ScaleJAAF CertifiedScenic
Distance
42.195km
Entry Fee
¥18,000
秋AUTUMN
Entry Open
Kyoto
November 22, 2026
Fukuchiyama Marathon
EntryMay 1, 2026 〜 May 31, 2026 +2 more
Long-running Race
Distance
42.195km
Entry Fee
¥11,000
秋AUTUMN
Opens Soon
Ibaraki
November 22, 2026
Tsukuba Marathon
EntryJuly 5, 2026 〜 July 27, 2026
Flat CourseFast Course
Distance
42.195km
Entry Fee
—
秋AUTUMN
Tochigi
November 23, 2026
Ohtawara Marathon
EntryTBA
Distance
—
Entry Fee
—
冬WINTER
Entry Open
Tokyo
December 5, 2026
Izu-Oshima-Marathon
EntryJune 6, 2026 〜 November 15, 2026
Distance
42.195km、21.0975km、10km
Entry Fee
¥5,400〜
冬WINTER
Fukuoka
December 6, 2026
Fukuoka International Marathon
EntryTBA
Elite RaceJAAF CertifiedLong-running Race
Distance
42.195km
Entry Fee
—
冬WINTER
Closing Soon
Yamaguchi
December 6, 2026
Hofu Yomiuri Marathon
EntryJune 22, 2026 〜 July 6, 2026 +3 more
Elite RaceJAAF CertifiedFast Course
Distance
42.195km
Entry Fee
—
冬WINTER
Okinawa
December 6, 2026
NAHA Marathon
EntryTBA
Large ScaleOkinawaWarm Climate
Distance
42.195km
Entry Fee
—
冬WINTER
Entry Open
Kanagawa
December 6, 2026
Shonan International Marathon
EntryApril 4, 2026 〜 September 9, 2026 +1 more
Mt. FujiScenicCoastal
Distance
42.195km、10km
Entry Fee
¥8,500〜
冬WINTER
Miyazaki
December 13, 2026
Aotai
EntryTBA
Distance
—
Entry Fee
—
冬WINTER
Entry Open
Yamanashi
December 13, 2026
Mt. Fuji Marathon
EntryApril 20, 2026 〜 May 31, 2026 +4 more
Mt. FujiScenicLakeside
Distance
42.195km
Entry Fee
¥12,900
冬WINTER
Closing Soon
Nara
December 13, 2026
Nara Marathon
EntryMay 27, 2026 〜 June 4, 2026 +1 more
World HeritageSightseeingHilly
Distance
42.195km
Entry Fee
¥15,000
冬WINTER
Entry Open
Mie
December 20, 2026
Mie Matsusaka Marathon
EntryMay 24, 2026 〜 May 31, 2026 +3 more
Local Food
Distance
42.195km
Entry Fee
—
冬WINTER
Opens Soon
Kyoto
February 21, 2027
Kyoto Marathon
EntryJuly 17, 2026 〜 September 22, 2026
World HeritageScenicSightseeing
Distance
42.195km
Entry Fee
¥18,500
冬WINTER
Opens Soon
Fukushima
February 28, 2027
Iwaki Sunshine Marathon
EntrySeptember 11, 2026 〜 October 15, 2026
Coastal
Distance
42.195km、10km、5km、2km
Entry Fee
¥1,500〜
春SPRING
Opens Soon
Tokyo
March 7, 2027
Tokyo Marathon
EntryJuly 31, 2026 〜 August 13, 2026 +1 more
Flat CourseWorld MajorsBeginner Friendly
Distance
42.195km
Entry Fee
—