Japan competed at the 1988 Summer Olympics in Seoul, South Korea. 255 competitors, 186 men and 69 women, took part in 166 events in 23 sports. Medalists | width=78% align=left valign=top | | width=22% align=left valign=top | Competitors The following is the list of number of competitors in the Games. Archery In their fourth Olympic archery competition, Japan was unable to win any medals. Defending bronze medallist Hiroshi Yamamoto placed eighth, the only individual archer to make the finals. The men's team placed sixth overall, while the women's team was last place. Women's Individual Competition: Toyoka Oki — Preliminary round (→ 31st place) Keiko Nakagomi — Preliminary round (→ 52nd place) Kyoko Kitahara — Preliminary round (→ 53rd place) Men's Individual Competition: Hiroshi Yamamoto — Final (→ 8th place) Takayoshi Matsushita — Quarterfinal (→ 14th place) Terushi Furuhashi — Preliminary round (→ 40th place) Women's Team Competition: Oki, Nakagomi, and Kitahara — Preliminary round (→ 15th place) Men's Team Competition: Yamamoto, Matsushita, and Furuhashi — Final (→ 6th place) Athletics Men's 100 metres Koji Kurihara Takahiko Kasahara Tomohiro Osawa Men's 200 metres Kenji Yamauchi Men's 400 metres Susumu Takano Men's 5,000 metres Shuichi Yoneshige Men's 10,000 metres Kozu Akutsu Heat — 28:16.43 Final — 28:09.70 (→ 14th place) Shuichi Yoneshige Heat — 28:26.04 Final — 29:04.44 (→ 17th place) Tsukasa Endo Heat — did not finish (→ did not advance) Men's Marathon Takeyuki Nakayama Final — 2:11:05 (→ 4th place) Toshihiko Seko Final — 2:13:41 (→ 9th place) Hisatoshi Shintaku Final — 2:15:42 (→ 17th place) Men's 4 × 100 m Relay Kaoru Matsubara, Shinji Aoto, Koji Kurihara, and Takahiro Kasahara Heat — 39.70 Shinji Aoto, Kenji Yamauchi, Koji Kurihara, and Susumu Takano Semi Final — 38.90 (→ did not advance) Men's 4 × 400 m Relay Hirofumi Koike, Kenji Yamauchi, Hiromi Kawasumi, and Susumu Takano Heat — 3:05.63 Semi Final — 3:03.80 (→ did not advance) Men's Long Jump Hiroyuki Shibata Qualification — 7.48m (→ did not advance) Junichi Usui Qualification — NM (→ did not advance) Men's Triple Jump Norifumi Yamashita Men's Javelin Throw Kazuhiro Mizoguchi Qualification — 77.46m (→ did not advance) Masami Yoshida Qualification — 76.90m (→ did not advance) Men's 20 km Walk Hirofumi Sakai Final — 1:24:08 (→ 26th place) Tadahiro Kosaka Final — 1:32:46 (→ 47th place) Men's 50 km Walk Tadahiro Kosaka Final — 4'03:12 (→ 31st place) Women's 10,000 metres Akemi