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SundayMarathon
Marathon directory

Marathons in Japan

100 upcoming marathons in Japan across 7 cities. Next: Lake Saroma 100km Ultra Marathon on June 28, 2026.

100marathons upcoming
7cities
June 28, 2026Next race
5distance types
Lake Saroma 100km Ultra Marathon
28JUN
ULTRA
Lake Saroma 100km Ultra Marathon
Japan
June 28, 2026 Certified
Central Alps Skyline Japan - 89K
04JUL
ULTRA
Central Alps Skyline Japan - 89K
Japan
July 4, 2026 JUL
R.O.C - 115K
04JUL
ULTRA
R.O.C - 115K
Japan
July 4, 2026 JUL
R.O.C - 165K
04JUL
ULTRA
R.O.C - 165K
Japan
July 4, 2026 JUL
“ROCKIN’ BEAR” MYOKO TRAIL RUNNING RACE - 48K
04JUL
ULTRA
“ROCKIN’ BEAR” MYOKO TRAIL RUNNING RACE - 48K
Japan
July 4, 2026 JUL
Central Alps Skyline Japan - 39K
05JUL
42.2K
Central Alps Skyline Japan - 39K
Japan
July 5, 2026 JUL
Himebotaru Torokawadaira trail run - 45K
05JUL
ULTRA
Himebotaru Torokawadaira trail run - 45K
Japan
July 5, 2026 JUL
Japan
18JUL
ULTRA
Osj ONTAKE100 - 161K
Japan
July 18, 2026 JUL
Japan
19JUL
ULTRA
Osj ONTAKE100 - 107K
Japan
July 19, 2026 JUL
Japan
26JUL
42.2K
Daisetsuzan Trail Journey - 40K
Japan
July 26, 2026 JUL
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

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.

Submit for review How review works

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 100 upcoming races by date, distance, registration path, and official source.

  • Next raceLake Saroma 100km Ultra Marathon on June 28, 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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