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Marathons in Japan

106 upcoming marathons in Japan across 7 cities. Next: Kanazawa May Ecomarathon on May 9, 2027.

106marathons upcoming
7cities
May 9, 2027Next race
5distance types

List your marathon with verified details

Hosting a marathon in Japan? Submit the official source so runners can verify the race before they register.

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Already listed in Japan? Open the race and use Update listing. Missing event? Start here with the location prefilled.

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13JUN
42.2K course — Japan
FAIRY TRAIL- Takashima Kutsuki Trail Run Race - 36K
Japan
June 13, 2026 JUN
13JUN
ULTRA course — Japan
KUMAN100 - 164K
Japan
June 13, 2026 JUN
14JUN
ULTRA course — Japan
Echigo Country Trail - 60K
Japan
June 14, 2026 JUN
20JUN
ULTRA course — Japan
Kaga Spa Trail Endurance 100 Japan by UTMB®
Japan
June 20, 2026 JUN
21JUN
21.1K course — Japan
Mihara Hakuryuko Trail Run Race - 21K
Japan
June 21, 2026 JUN
26JUN
ULTRA course — Japan
Deep Japan Ultra 100 - 78K
Japan
June 26, 2026 JUN
28JUN
ULTRA course — Japan
Lake Saroma 100km Ultra Marathon
Japan
June 28, 2026 Certified
04JUL
ULTRA course — Japan
Central Alps Skyline Japan - 89K
Japan
July 4, 2026 JUL
04JUL
ULTRA course — Japan
R.O.C - 115K
Japan
July 4, 2026 JUL
04JUL
ULTRA course — Japan
R.O.C - 165K
Japan
July 4, 2026 JUL
04JUL
ULTRA course — Japan
“ROCKIN’ BEAR” MYOKO TRAIL RUNNING RACE - 48K
Japan
July 4, 2026 JUL
05JUL
42.2K course — Japan
Central Alps Skyline Japan - 39K
Japan
July 5, 2026 JUL
05JUL
ULTRA course — Japan
Himebotaru Torokawadaira trail run - 45K
Japan
July 5, 2026 JUL
18JUL
ULTRA course — Japan
Osj ONTAKE100 - 161K
Japan
July 18, 2026 JUL
19JUL
ULTRA course — Japan
Osj ONTAKE100 - 107K
Japan
July 19, 2026 JUL
26JUL
42.2K course — Japan
Daisetsuzan Trail Journey - 40K
Japan
July 26, 2026 JUL
16AUG
ULTRA course — Japan
World geopark trailrun - 59K
Japan
August 16, 2026 AUG
21AUG
ULTRA course — Japan
13th World Cultural Heritage "Fuji" Foot Race - 101km
Japan
August 21, 2026 AUG
29AUG
ULTRA course — Japan
Yacchiro Dragon Trail - 50K
Japan
August 29, 2026 AUG
30AUG
ULTRA course — Japan
Fuji Trail Challenge Trail To Be Alive - 101K
Japan
August 30, 2026 AUG
30AUG
42.2K course — Japan
Hokkaido Marathon
Japan
August 30, 2026 Certified
12SEP
ULTRA course — Japan
SkyViewTrail - 110K
Japan
September 12, 2026 SEP
12SEP
ULTRA course — Japan
SkyViewTrail - 137K
Japan
September 12, 2026 SEP
12SEP
ULTRA course — Japan
SkyViewTrail - 76K
Japan
September 12, 2026 SEP

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

  • Next raceKanazawa May Ecomarathon on May 9, 2027
  • 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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