Japan competed at the 1984 Summer Olympics in Los Angeles, United States. Japan returned to the Games after participating in the American-led boycott of the 1980 Summer Olympics. 226 competitors, 174 men and 52 women, took part in 147 events in 22 sports. Medalists | width=78% align=left valign=top | | width=22% align=left valign=top | Archery In their third Olympic archery competition, Japan won a bronze medal in the men's division as well as having a fourth place competitor in each division. Women's Individual Competition: Hiroko Ishizu – 2525 points (4th place) Minako Hokari – 2481 points (10th place) Men's Individual Competition: Hiroshi Yamamoto – 2563 points (Bronze Medal) Takayoshi Matsushita – 2552 points (4th place) Ichiro Shimamura – 2312 points (52nd place) Athletics Men's 400 metres Susumu Takana Heat — 46.26 Quarterfinals — 45.91 Semifinals — 45.88 (→ did not advance) Men's 10,000 metres Yutaka Kanai Qualifying Heat — 28:14.67 Final — 28:27.06 (→ 7th place) Masanari Shintaku Qualifying Heat — 28:24.30 Final — 28:55.54 (→ 16th place) Men's Marathon Takeshi So Final — 2:10:55 (→ 4th place) Toshihiko Seko Final — 2:14:13 (→ 14th place) Shigeru So Final — 2:14:38 (→ 17th place) Men's Long Jump Junichi Usui Qualification — 8.02m Final — 7.87m (→ 7th place) Men's High Jump Takao Sakamoto Qualification — 2.21m (→ did not advance) Men's Javelin Throw Masami Yoshida Qualification — 81.42m Final — 81.98m (→ 5th place) Kazuhiro Mizoguchi Qualification — 74.82m (→ did not advance, 20th place) Men's Hammer Throw Shigenobu Murofushi Qualification — 70.92m (→ did not advance) Men's Pole Vault Tomomi Takahashi Qualifying Round — 5.30m Final — no mark (→ no ranking) Women's Marathon Nanae Sasaki Final — 2:37:04 (→ 19th place) Akemi Masuda Final — did not finish (→ no ranking) Women's High Jump Hisayo Fukumitsu Qualification — 1.87m (→ did not advance, 17th place) Megumi Sato Qualification — 1.84m (→ did not advance, 18th place) Women's Javelin Throw Emi Matsui Qualification — 57.72m (→ did not advance) Minori Mori Qualification — 56.60m (→ did not advance) Boxing Men's Light Flyweight (– 48 kg) Mamoru Kuroiwa First Round — Bye Second Round — Defeated Francisco Tejedor (COL), 4:1 Quarterfinals — Lost to Keith Mwila (KEN), 0:5 Men's Bantamweight (– 54 kg) Hiroaki Takami First Round — Bye Second Round — Defeated Gamaleldin El-Koumy (EGY), 4:1 Third Round — Lost to Dale Walters (CAN), 0:5 Canoeing Cycling Nine cyclists,