Marathons and running races in Japan
31 marathons, 14 half marathons and 2 ultras in Japan.
The next one is the Yokohama Marathon on 25 October 2026.
The flattest marathon is the Itabashi City Marathon (20 m of climbing); the hilliest is the Ibusuki Nanohana Marathon (450 m).
For cool racing conditions, the Tokushima Marathon usually starts around 9°C.
The biggest field is at the Tokyo Marathon, with about 37,000 finishers.
🇯🇵 Yokohama, Japan
Yokohama Marathon
25 Oct 2026In 14 days
Gain
50 m
Start temp
14°C
Entry
$120
MarathonLotterycoastalbig city
🇯🇵 Kanazawa, Japan
Kanazawa Marathon
25 Oct 2026In 14 days
Gain
40 m
Start temp
15°C
Entry
$90
MarathonLotteryhistoric
🇯🇵 Fukuoka, Japan
Fukuoka Marathon
8 Nov 2026In 28 days
Gain
60 m
Start temp
14°C
Entry
$105
MarathonLotterycoastal
🇯🇵 Kobe, Japan
Kobe Marathon
15 Nov 2026In 35 days
Gain
70 m
Start temp
14°C
Entry
$115
MarathonLotterycoastal
🇯🇵 Naha, Japan
NAHA Marathon
6 Dec 2026In 56 days
Gain
230 m
Start temp
21°C
Entry
$70
MarathonOpen entryhillycoastal
🇯🇵 Oiso, Japan
Shonan International Marathon
6 Dec 2026In 56 days
Gain
60 m
Start temp
8°C
Entry
$105
MarathonOpen entrycoastalfast
🇯🇵 Hadano, Japan
Hadano Tanzawa Minase Marathon (Half)
6 Dec 2026In 56 days
Gain
300 m
Start temp
8°C
Entry
$45
Half marathonOpen entryhillysmall field
🇯🇵 Matsue, Japan
Matsue Castle Marathon
6 Dec 2026In 56 days
Gain
100 m
Start temp
8°C
Entry
$85
MarathonOpen entryscenichistoric
🇯🇵 Fujikawaguchiko, Japan
Mt. Fuji International Marathon
13 Dec 2026In 2 months
Gain
300 m
Start temp
5°C
Entry
$160
MarathonOpen entryscenichilly
🇯🇵 Nara, Japan
Nara Marathon
13 Dec 2026In 2 months
Gain
350 m
Start temp
8°C
Entry
$85
MarathonOpen entryhistorichilly
🇯🇵 Ibusuki, Japan
Ibusuki Nanohana Marathon
10 Jan 2027In 3 months
Gain
450 m
Start temp
10°C
Entry
$70
MarathonOpen entryscenichilly
🇯🇵 Tokyo, Japan
Tokyo New Year Half Marathon
10 Jan 2027In 3 months
Gain
20 m
Start temp
4°C
Entry
$55
Half marathonOpen entryfast
🇯🇵 Ishigaki, Japan
Ishigaki Island Marathon
17 Jan 2027In 3 months
Gain
350 m
Start temp
20°C
Entry
$50
MarathonOpen entrycoastalscenic
🇯🇵 Ishigaki, Japan
Ishigaki Island Marathon (Half)
17 Jan 2027In 3 months
Gain
150 m
Start temp
20°C
Entry
$45
21.6 kmOpen entrycoastalscenic
🇯🇵 Oyama, Japan
Fuji Marathon Festa (Half)
31 Jan 2027In 4 months
Gain
180 m
Start temp
5°C
Entry
$40
Half marathonOpen entryscenichilly
🇯🇵 Hitachinaka, Japan
Katsuta National Marathon
31 Jan 2027In 4 months
Gain
80 m
Start temp
7°C
Entry
$60
MarathonOpen entryhistoric
🇯🇵 Osaka, Japan
Osaka Half Marathon
31 Jan 2027In 4 months
Gain
30 m
Start temp
8°C
Entry
$75
Half marathonOpen entryfastbig city
🇯🇵 Tateyama, Japan
Tateyama Wakashio Marathon
31 Jan 2027In 4 months
Gain
200 m
Start temp
9°C
Entry
$60
MarathonOpen entrycoastalscenic
🇯🇵 Beppu, Japan
Beppu-Oita Mainichi Marathon
7 Feb 2027In 4 months
Gain
50 m
Start temp
9°C
Entry
$115
MarathonQualifying timefastcoastal
🇯🇵 Matsuyama, Japan
Ehime Marathon
7 Feb 2027In 4 months
Gain
200 m
Start temp
7°C
Entry
$130
MarathonOpen entryhistoricscenic
🇯🇵 Yokohama, Japan
Kanagawa Marathon (Half)
7 Feb 2027In 4 months
Gain
20 m
Start temp
7°C
Entry
$45
Half marathonOpen entryfast
🇯🇵 Marugame, Japan
Kagawa Marugame International Half Marathon
7 Feb 2027In 4 months
Gain
20 m
Start temp
6°C
Entry
$65
Half marathonOpen entryfast
🇯🇵 Kishiwada, Japan
KIX Senshu International Marathon (Half)
14 Feb 2027In 4 months
Gain
30 m
Start temp
8°C
Entry
$60
Half marathonOpen entrycoastalfast
🇯🇵 Kyoto, Japan
Kyoto Marathon
21 Feb 2027In 4 months
Gain
200 m
Start temp
6°C
Entry
$125
MarathonLotteryhistoricscenic
🇯🇵 Kitakyushu, Japan
Kitakyushu Marathon
21 Feb 2027In 4 months
Gain
120 m
Start temp
7°C
Entry
$100
MarathonLotterycoastalbig city
🇯🇵 Kochi, Japan
Kochi Ryoma Marathon
21 Feb 2027In 4 months
Gain
150 m
Start temp
8°C
Entry
$85
MarathonOpen entrycoastalscenic
🇯🇵 Kumamoto, Japan
Kumamoto Castle Marathon
21 Feb 2027In 4 months
Gain
100 m
Start temp
7°C
Entry
$90
MarathonLotteryhistoricbig city
🇯🇵 Okinawa City, Japan
Okinawa Marathon
21 Feb 2027In 4 months
Gain
400 m
Start temp
18°C
Entry
$70
MarathonOpen entryhilly
🇯🇵 Osaka, Japan
Osaka Marathon
28 Feb 2027In 5 months
Gain
30 m
Start temp
7°C
Entry
$105
MarathonLotteryfastbig city
🇯🇵 Inuyama, Japan
Inuyama Half Marathon
28 Feb 2027In 5 months
Gain
40 m
Start temp
7°C
Entry
$60
Half marathonOpen entryfastscenic
🇯🇵 Soja, Japan
Soja Kibiji Marathon
28 Feb 2027In 5 months
Gain
120 m
Start temp
7°C
Entry
$60
MarathonOpen entryhistoricsmall field
🇯🇵 Soja, Japan
Soja Kibiji Marathon (Half)
28 Feb 2027In 5 months
Gain
60 m
Start temp
7°C
Entry
$50
Half marathonOpen entryhistoric
Major🇯🇵 Tokyo, Japan
Tokyo Marathon
7 Mar 2027In 5 months
Gain
45 m
Start temp
8°C
Entry
$130
MarathonLotteryfastbig city
🇯🇵 Kagoshima, Japan
Kagoshima Marathon
7 Mar 2027In 5 months
Gain
150 m
Start temp
10°C
Entry
$130
MarathonOpen entrysceniccoastal
🇯🇵 Miura, Japan
Miura International Marathon (Half)
7 Mar 2027In 5 months
Gain
150 m
Start temp
10°C
Entry
$60
Half marathonOpen entrycoastalscenic
🇯🇵 Tambasasayama, Japan
Tamba Sasayama ABC Marathon
7 Mar 2027In 5 months
Gain
250 m
Start temp
7°C
Entry
$155
MarathonOpen entryhistoricscenic
🇯🇵 Nagoya, Japan
Nagoya Women's Marathon
14 Mar 2027In 5 months
Gain
60 m
Start temp
10°C
Entry
$160
MarathonOpen entrybig cityfast
🇯🇵 Tokushima, Japan
Tokushima Marathon
14 Mar 2027In 5 months
Gain
80 m
Start temp
9°C
Entry
$85
MarathonOpen entry
🇯🇵 Tokyo, Japan
Itabashi City Marathon
21 Mar 2027In 5 months
Gain
20 m
Start temp
10°C
Entry
$100
MarathonOpen entryfast
🇯🇵 Hiroshima, Japan
Hiroshima by UTMB 100K
10 Apr 2027In 6 months
Gain
5,600 m
Start temp
—
Entry
$310
95 kmTrailOpen entryhilly
🇯🇵 Hiroshima, Japan
Hiroshima by UTMB 50K
10 Apr 2027In 6 months
Gain
2,800 m
Start temp
—
Entry
$220
49 kmTrailOpen entryhilly
🇯🇵 Hiroshima, Japan
Hiroshima by UTMB 25K
11 Apr 2027In 6 months
Gain
880 m
Start temp
—
Entry
$125
25 kmTrailOpen entryhilly
🇯🇵 Nagano, Japan
Nagano Marathon
18 Apr 2027In 6 months
Gain
60 m
Start temp
12°C
Entry
$100
MarathonOpen entryscenic
🇯🇵 Tome, Japan
Tohoku Food Marathon
18 Apr 2027In 6 months
Gain
150 m
Start temp
11°C
Entry
$80
MarathonOpen entrysmall fieldscenic
🇯🇵 Tome, Japan
Tohoku Food Marathon (Half)
18 Apr 2027In 6 months
Gain
80 m
Start temp
13°C
Entry
$60
Half marathonOpen entryscenic
🇯🇵 Gifu, Japan
Gifu Seiryu Half Marathon
25 Apr 2027In 6 months
Gain
40 m
Start temp
17°C
Entry
$50
Half marathonOpen entryfastscenic
🇯🇵 Sapporo, Japan
Hokkaido Marathon
29 Aug 2027est.In 11 months
Gain
20 m
Start temp
22°C
Entry
$105
MarathonOpen entryfastbig city