Results for Japan in Marathon, Men

Olympic and Intercalated results only.

Games	Athlete/Team	Placement
1912 Summer Olympics	Shizo Kanakuri	DNF
1920 Summer Olympics	Shizo Kanakuri	16
	Zensaku Motegi	20
	Kenzo Yashima	21
	Yahei Miura	24
1924 Summer Olympics	Kikunosuke Tashiro	DNF
	Shizo Kanakuri	DNF
	Yahei Miura	DNF
1928 Summer Olympics	Kanematsu Yamada	4
	Seiichiro Tsuda	6
	Juichi Nagatani	48
1932 Summer Olympics	Seiichiro Tsuda	5
	Kim Un-Bae	6
	Kwon Tae-Ha	9
1936 Summer Olympics	Son Gi-Jeong	1	Gold
	Nam Sung-Yong	3	Bronze
	Tamao Shiwaku	DNF
1952 Summer Olympics	Katsuo Nishida	25
	Keizo Yamada	26
	Yoshitaka Uchikawa	DNF
1956 Summer Olympics	Yoshiaki Kawashima	5
	Hideo Hamamura	16
	Kurao Hiroshima	33
1960 Summer Olympics	Kurao Hiroshima	31
	Kazumi Watanabe	32
	Nobuyoshi Sadanaga	46
1964 Summer Olympics	Kokichi Tsuburaya	3	Bronze
	Kenji Kimihara	8
	Toru Terasawa	15
1968 Summer Olympics	Kenji Kimihara	2	Silver
	Akio Usami	9
	Seiichiro Sasaki	DNF
1972 Summer Olympics	Kenji Kimihara	5
	Akio Usami	12
	Yoshiaki Unetani	36
1976 Summer Olympics	Shigeru So	20
	Noriyasu Mizukami	21
	Akio Usami	32
1984 Summer Olympics	Takeshi So	4
	Toshihiko Seko	14
	Shigeru So	17
1988 Summer Olympics	Takeyuki Nakayama	4
	Toshihiko Seko	9
	Hisatoshi Shintaku	17
1992 Summer Olympics	Koichi Morishita	2	Silver
	Takeyuki Nakayama	4
	Hiromi Taniguchi	8
1996 Summer Olympics	Hiromi Taniguchi	19
	Masaki Oya	54
	Kenjiro Jitsui	93
2000 Summer Olympics	Shinji Kawashima	21
	Nobuyuki Sato	41
	Takayuki Inubushi	DNF
2004 Summer Olympics	Shigeru Aburaya	5
	Toshinari Suwa	6
	Tomoaki Kunichika	42
2008 Summer Olympics	Tsuyoshi Ogata	13
	Atsushi Sato	76
	Satoshi Oosaki	DNS
2012 Summer Olympics	Kentaro Nakamoto	6
	Ryo Yamamoto	40
	Arata Fujiwara	45
2016 Summer Olympics	Satoru Sasaki	16
	Suehiro Ishikawa	36
	Hisanori Kitajima	93
2020 Summer Olympics	Suguru Osako	6
	Shogo Nakamura	61
	Yuma Hattori	72
2024 Summer Olympics	Akira Akasaki	6
	Suguru Osako	13
	Naoki Koyama	23