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SundayMarathon
Marathon directory

Marathons in Japan

90 upcoming marathons in Japan across 7 cities. Next: World geopark trailrun - 59K on August 16, 2026.

90marathons upcoming
7cities
August 16, 2026Next race
5distance types
Japan
16AUG
ULTRA
World geopark trailrun - 59K
Japan
August 16, 2026 AUG
Japan
21AUG
ULTRA
13th World Cultural Heritage "Fuji" Foot Race - 101km
Japan
August 21, 2026 AUG
Japan
29AUG
ULTRA
Yacchiro Dragon Trail - 50K
Japan
August 29, 2026 AUG
Japan
30AUG
ULTRA
Fuji Trail Challenge Trail To Be Alive - 101K
Japan
August 30, 2026 AUG
Japan
30AUG
42.2K
Hokkaido Marathon
Japan
August 30, 2026 Certified
Japan
12SEP
ULTRA
SkyViewTrail - 110K
Japan
September 12, 2026 SEP
Japan
12SEP
ULTRA
SkyViewTrail - 137K
Japan
September 12, 2026 SEP
Japan
12SEP
ULTRA
SkyViewTrail - 76K
Japan
September 12, 2026 SEP
Japan
22SEP
21.1K
Ecomarathon Kanazawa
Japan
September 22, 2026 SEP
Japan
26SEP
ULTRA
Flash Trail Challenge Autumn - 79K
Japan
September 26, 2026 SEP
Japan
27SEP
ULTRA
Tsukubarenzan trailrun in ISHIOKA - 71K
Japan
September 27, 2026 SEP
Japan
27SEP
42.2K
Wakasaji Trail Run - 40K
Japan
September 27, 2026 SEP
Japan
04OCT
ULTRA
7th Mine Akiyoshidai Geopark Ultra Marathon - 100km
Japan
October 4, 2026 OCT
Japan
04OCT
42.2K
Iwate Morioka City Marathon
Japan
October 4, 2026 OCT
Japan
09OCT
ULTRA
6th Lake Biwa 100 - 169km
Japan
October 9, 2026 to October 11, 2026 OCT
Japan
11OCT
ULTRA
4th Aizu Yanaizu Akabeko Marathon - 12h
Japan
October 11, 2026 OCT
Japan
11OCT
42.2K
Niigata City Marathon
Japan
October 11, 2026 OCT
Japan
18OCT
ULTRA
33. Ultramarathon Okumusashi Quintet - 70km
Japan
October 18, 2026 OCT
Japan
18OCT
21.1K
Tokyo Legacy Half Marathon 2026
Japan
October 18, 2026 OCT
Japan
24OCT
42.2K
Jungle Guruguru Max - 43K
Japan
October 24, 2026 OCT
Yokohama, Kanagawa, Japan
25OCT
42.2K
Yokohama Marathon - Oct 25
Yokohama, Kanagawa, Japan
October 25, 2026 OCT
Japan
25OCT
42.2K
FORESTRAIL HIRUZEN-SHINJO supported by GREENable - 37K
Japan
October 25, 2026 OCT
Japan
25OCT
42.2K
Kanazawa Marathon
Japan
October 25, 2026 Certified
Japan
25OCT
21.1K
Saiko Eco-Marathon
Japan
October 25, 2026 OCT

List your marathon with verified details

Hosting a marathon in Japan? Submit the official source for free so runners can verify the race before they plan travel.

  • Free listing review
  • Official source verification
  • Runner-ready listing
  • Organizer dashboard

Already listed in Japan? Open the race and use Update listing. Missing event? Add it for free with the location prefilled.

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Regions

Place Marathons
Fukuoka 3
Hyogo 1
Kanagawa 1
Nagano 1
Okinawa 1
Yamanashi 1

Cities

Place Marathons
Fukuoka 2
Fujikawaguchiko, Yamanashi 1
Fukuoka 1
Kobe, Hyogo 1
Matsumoto, Nagano 1
Naha, Okinawa 1
Yokohama, Kanagawa 1

Planning notes for Japan

Use this country page to shortlist 90 upcoming races by date, distance, registration path, and official source.

  • Next raceWorld geopark trailrun - 59K on August 16, 2026
  • Busy monthsNovember (14), February (13), October (13)
  • DistancesMarathon, Half marathon, Ultra, 10K, 5K
  • VerifyOpen each race page, then confirm details from its official, registration, course-map, or source link.

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