Japan at the 1984 Summer Olympics

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

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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 &mdash; 46.26
 * Quarterfinals &mdash; 45.91
 * Semifinals &mdash; 45.88 (→ did not advance)

Men's 10,000 metres
 * Yutaka Kanai
 * Qualifying Heat &mdash; 28:14.67
 * Final &mdash; 28:27.06 (→ 7th place)


 * Masanari Shintaku
 * Qualifying Heat &mdash; 28:24.30
 * Final &mdash; 28:55.54 (→ 16th place)

Men's Marathon
 * Takeshi So
 * Final &mdash; 2:10:55 (→ 4th place)


 * Toshihiko Seko
 * Final &mdash; 2:14:13 (→ 14th place)


 * Shigeru So
 * Final &mdash; 2:14:38 (→ 17th place)

Men's Long Jump
 * Junichi Usui
 * Qualification &mdash; 8.02m
 * Final &mdash; 7.87m (→ 7th place)

Men's High Jump
 * Takao Sakamoto
 * Qualification &mdash; 2.21m (→ did not advance)

Men's Javelin Throw
 * Masami Yoshida
 * Qualification &mdash; 81.42m
 * Final &mdash; 81.98m (→ 5th place)


 * Kazuhiro Mizoguchi
 * Qualification &mdash; 74.82m (→ did not advance, 20th place)

Men's Hammer Throw
 * Shigenobu Murofushi
 * Qualification &mdash; 70.92m (→ did not advance)

Men's Pole Vault
 * Tomomi Takahashi
 * Qualifying Round &mdash; 5.30m
 * Final &mdash; no mark (→ no ranking)

Women's Marathon
 * Nanae Sasaki
 * Final &mdash; 2:37:04 (→ 19th place)


 * Akemi Masuda
 * Final &mdash; did not finish (→ no ranking)

Women's High Jump
 * Hisayo Fukumitsu
 * Qualification &mdash; 1.87m (→ did not advance, 17th place)


 * Megumi Sato
 * Qualification &mdash; 1.84m (→ did not advance, 18th place)

Women's Javelin Throw
 * Emi Matsui
 * Qualification &mdash; 57.72m (→ did not advance)


 * Minori Mori
 * Qualification &mdash; 56.60m (→ did not advance)

Boxing
Men's Light Flyweight (– 48 kg)
 * Mamoru Kuroiwa
 * First Round &mdash; Bye
 * Second Round &mdash; Defeated Francisco Tejedor (COL), 4:1
 * Quarterfinals &mdash; Lost to Keith Mwila (KEN), 0:5

Men's Bantamweight (– 54 kg)
 * Hiroaki Takami
 * First Round &mdash; Bye
 * Second Round &mdash; Defeated Gamaleldin El-Koumy (EGY), 4:1
 * Third Round &mdash; Lost to Dale Walters (CAN), 0:5

Cycling
Nine cyclists, eight men and one woman, represented Japan in 1984. Tsutomu Sakamoto won a bronze medal in the sprint event.


 * Men's individual road race
 * Matsuyoshi Takahashi &mdash; 45th place


 * Sprint
 * Tsutomu Sakamoto
 * Katsuo Nakatake


 * 1000m time trial
 * Tsutomu Sakamoto


 * Team pursuit
 * Akio Kuwazawa
 * Harumitsu Okada
 * Mitsugi Sarudate
 * Yoshihiro Tsumuraya


 * Points race
 * Akio Kuwazawa
 * Hitoshi Sato


 * Women's individual road race
 * Wakako Abe &mdash; 40th place

Diving
Men's 3m Springboard
 * Isao Yamagishi
 * Preliminary Round &mdash; 427.14 (→ did not advance, 25th place)

Fencing
Nine fencers, five men and four women, represented Japan in 1984.


 * Men's foil
 * Kenichi Umezawa
 * Nobuyuki Azuma
 * Tadashi Shimokawa


 * Men's team foil
 * Nobuyuki Azuma, Yoshihiko Kanatsu, Hidehachi Koyasu, Tadashi Shimokawa, Kenichi Umezawa


 * Women's foil
 * Azusa Oikawa
 * Mieko Miyahara
 * Miyuki Maekawa


 * Women's team foil
 * Mieko Miyahara, Azusa Oikawa, Miyuki Maekawa, Tomoko Oka

Handball

 * Men's Team Competition
 * Preliminary Round (Group A)
 * Lost to Yugoslavia (15:32)
 * Lost to Romania (22:28)
 * Lost to Iceland (17:21)
 * Lost to Switzerland (13:20)
 * Defeated Algeria (17:16)


 * Classification Match
 * 9th/10th place: Lost to United States (16:24) → 10th place


 * Team Roster
 * Seimei Gamo
 * Takashi Ikenoue
 * Yasou Ikona
 * Hidetada Ito
 * Koji Matsui
 * Mitsuaki Nakamoto
 * Kiyoshi Nishiyama
 * Takahiro Ohata
 * Nobuo Sasaki
 * Kenzo Seki
 * Yoshihiro Shiga
 * Katsutoshi Taguchi
 * Seiichi Takamura
 * Yukihiko Uemura
 * Shinji Yamamoto

Modern pentathlon
Three male pentathletes represented Japan in 1984.


 * Individual
 * Shoji Uchida
 * Hiroyuki Kawazoe
 * Daizou Araki


 * Team
 * Shoji Uchida
 * Hiroyuki Kawazoe
 * Daizou Araki

Shooting

 * Men
 * Women
 * Open

Swimming
Men's 100m Freestyle
 * Shigeo Ogata
 * Heat &mdash; 52.96 (→ did not advance, 33rd place)


 * Satoshi Sumida
 * Heat &mdash; 53.83 (→ did not advance, 39th place)

Men's 200m Freestyle
 * Hiroshi Sakamoto
 * Heat &mdash; 1:54.71 (→ did not advance, 26th place)


 * Shigeo Ogata
 * Heat &mdash; 1:55.97 (→ did not advance, 33rd place)

Men's 400m Freestyle
 * Shigeo Ogata
 * Heat &mdash; 4:02.97 (→ did not advance, 22nd place)


 * Keisuke Okuno
 * Heat &mdash; 4:06.31 (→ did not advance, 27th place)

Men's 100m Backstroke
 * Daichi Suzuki
 * Heat &mdash; 58.37
 * B-Final &mdash; 58.30 (→ 11th place)

Men's 200m Backstroke
 * Daichi Suzuki
 * Heat &mdash; 2:06.24
 * B-Final &mdash; 2:06.02 (→ 16th place)

Men's 100m Breaststroke
 * Shigehiro Takahashi
 * Heat &mdash; 1:04.71
 * B-Final &mdash; 1:04.41 (→ 10th place)


 * Kenji Watanabe
 * Heat &mdash; 1:06.10 (→ did not advance, 9th place)

Men's 200m Breaststroke
 * Shigehiro Takahashi
 * Heat &mdash; 2:19.98
 * B-Final &mdash; 2:20.93 (→ 12th place)


 * Kenji Watanabe
 * Heat &mdash; 2:22.33
 * B-Final &mdash; 2:22.29 (→ 15th place)

Men's 100m Butterfly
 * Taihei Saka
 * Heat &mdash; 56.40 (→ did not advance, 21st place)


 * Shudo Kawawa
 * Heat &mdash; 56.52 (→ did not advance, 23rd place)

Men's 200m Butterfly
 * Taihei Saka
 * Heat &mdash; 2:00.66
 * B-Final &mdash; 2:00.31 (→ 9th place)


 * Shudo Kawawa
 * Heat &mdash; 2:03.07 (→ did not advance, 18th place)

Men's 200m Individual Medley
 * Shinji Ito
 * Heat &mdash; 2:07.76
 * B-Final &mdash; 2:06.07 (→ 10th place)

Men's 400m Individual Medley
 * Shinji Ito
 * Heat &mdash; 4:30.52
 * B-Final &mdash; 4:29.76 (→ 13th place)

Men's 4 × 100 m Freestyle Relay
 * Hiroshi Sakamoto, Shigeo Ogata, Taihei Saka, and Satoshi Sumida
 * Heat &mdash; 3:30.45 (→ did not advance, 13th place)

Men's 4 × 200 m Freestyle Relay
 * Taihei Saka, Hiroshi Sakamoto, Keisuke Okuno, and Shigeo Ogata
 * Heat &mdash; DSQ (→ did not advance, no ranking)

Men's 4 × 100 m Medley Relay
 * Daichi Suzuki, Shigehiro Takahashi, Taihei Saka, and Hiroshi Sakamoto
 * Heat &mdash; 3:50.14
 * Final &mdash; DSQ (→ no ranking)

Women's 100m Freestyle
 * Kaori Yanase
 * Heat &mdash; 58.47 (→ did not advance, 17th place)


 * Chikako Nakamori
 * Heat &mdash; 59.00 (→ did not advance, 21st place)

Women's 200m Freestyle
 * Chikako Nakamori
 * Heat &mdash; 2:03.94
 * B-Final &mdash; 2:04.11 (→ 13th place)


 * Kaori Yanase
 * Heat &mdash; 2:04.38
 * B-Final &mdash; 2:05.24 (→ 16th place)

Women's 400m Freestyle
 * Chikako Nakamori
 * Heat &mdash; 4:20.13
 * B-Final &mdash; 4:20.18 (→ 14th place)


 * Junko Sakurai
 * Heat &mdash; 4:28.68 (→ did not advance, 19th place)

Women's 800m Freestyle
 * Junko Sakurai
 * Heat &mdash; 9:13.27 (→ did not advance, 18th place)

Women's 4 × 100 m Freestyle Relay
 * Junko Sakurai, Chikako Nakamori, Miki Saito, and Kaori Yanase
 * Heat &mdash; 3:54.68 (→ did not advance)

Women's 4 × 100 m Medley Relay
 * Naomi Sekido, Hiroko Nagasaki, Naoko Kume, and Kaori Yanase
 * Heat &mdash; 4:17.59
 * Final &mdash; DSQ (→ no ranking)

Women's 100m Backstroke
 * Naomi Sekido
 * Heat &mdash; 1:05.60 (→ did not advance, 18th place)


 * Nozomi Sunouchi
 * Heat &mdash; 1:07.23 (→ did not advance, 23rd place)

Women's 200m Backstroke
 * Naomi Sekido
 * Heat &mdash; 2:18.52
 * B-Final &mdash; 2:18.87 (→ 14th place)


 * Nozomi Sunouchi
 * Heat &mdash; 2:25.05 (→ did not advance, 22nd place)

Women's 200m Butterfly
 * Naoko Kume
 * Heat &mdash; 2:13.31
 * Final &mdash; 2:12.57 (→ 6th place)


 * Kiyomi Takahashi
 * Heat &mdash; 2:14.37
 * B-Final &mdash; 2:16.27 (→ 12th place)

Women's 200m Individual Medley
 * Hideka Koshimizu
 * Heat &mdash; 2:23.38
 * B-Final &mdash; 2:22.81 (→ 15th place)

Women's 400m Individual Medley
 * Hideka Koshimizu
 * Heat &mdash; 4:59.18
 * B-Final &mdash; 4:58.02 (→ 14th place)

Volleyball

 * Men's Team Competition
 * Preliminary Round (Group B)
 * Defeated China (3-0)
 * Defeated Italy (3-2)
 * Defeated Egypt (3-0)
 * Lost to Canada (0-3)


 * Classification Matches
 * 5th/8th place: Lost to Argentina (1-3)
 * 7th/8th place: Defeated China (3-0) → 7th place


 * Team Roster
 * Koshi Sobu
 * Eiji Shimomura
 * Kazuya Mitake
 * Eizaburo Mitsuhashi
 * Hiroaki Okuno
 * Yasushi Furukawa
 * Shuji Yamada
 * Mikiyasu Tanaka
 * Kimio Sugimoto
 * Minoru Iwata
 * Akihiro Iwashima
 * Shunichi Kawai


 * Women's Team Competition
 * Preliminary Round (Group A)
 * Defeated South Korea (3-1)
 * Defeated Peru (3-0)
 * Defeated Canada (3-0)


 * Semi Finals
 * Lost to China (0-3)


 * Bronze Medal Match
 * Defeated United States (3-1) → [[Image:Med 3.png]] Bronze Medal


 * Team Roster
 * Yumi Egami
 * Kimie Morita
 * Yuko Mitsuya
 * Miyoko Hirose
 * Kyoko Ishida
 * Yoko Kagabu
 * Norie Hiro
 * Kayoko Sugiiyama
 * Sachiko Otani
 * Keiko Miyajima
 * Emiko Odaka
 * Kumie Nakada

Water polo

 * Men's Team Competition
 * Preliminary Round (Group C)
 * Lost to Italy (5-15)
 * Lost to West Germany (8-15)
 * Lost to Australia (2-15)


 * Final Round (Group E)
 * Lost to China (4-10)
 * Lost to Greece (7-14)
 * Lost to Canada (5-8)
 * Defeated Brazil (9-8) → 11th place


 * Team Roster
 * Etsuji Fujita
 * Yoshifumi Saito
 * Koshi Fujimori
 * Shingo Kai
 * Narihito Taima
 * Daisuke Houki
 * Toshio Fukumoto
 * Toshiyuki Miyahara
 * Hisayoshi Nagata
 * Koji Wakayoshi
 * Hisaharu Saito
 * Shinji Yamasaki
 * Asami Oura