# 2020 Japan Championships in Athletics

The 104th Japan Championships in Athletics (第104回日本陸上競技選手権大会, Dai 104 kai Nihon Rikujō Kyōgi Sensyuken Taikai) was held at Denka Big Swan Stadium in Niigata. Organised by JAAF, the three-day competition took place from 1–3 October and served as the national championships in track and field for the Japan. The competition originally intended to serve as the qualifying trial for Japan at the 2020 Summer Olympics, but both the national championships and the Olympics were postponed due to the COVID-19 pandemic in Japan. The long-distance competitions were held separately from the main track and field competition, with 3000 metres steeplechase, 5000 metres and 10,000 metres all set to take place on 4 December at the Nagai Stadium.
Beyond the main track and field events, several other national championship events were contested separately that year. The marathon was staged on 8 March at the Lake Biwa Marathon (men) and Nagoya Marathon (women). Combined track and field events were held on 26–27 September at Nagano Athletic Stadium. The team relay championships were held between 16–18 October at the Nissan Stadium in Yokohama. Further events classed under the 104th edition of the national championships were scheduled for 2021, with indoor events on 6–7 February at the Osaka-jō Hall, 20 km walk on 21 February in Kobe and cross country running on 27 February in Fukuoka

## Results
### Men

| Event | Gold | Gold | Silver | Silver | Bronze | Bronze |
| 100 metres (wind: −0.2 m/s) | Yoshihide Kiryū Nihon Seimei | 10.27 s | Asuka Cambridge Nike, Inc. | 10.28 s | Yuki Koike Sumitomo Denki | 10.30 s |
| 200 metres (wind: −0.5 m/s) | Shōta Iizuka Mizuno Corporation | 20.75 s | Yuki Koike Sumitomo Denki | 20.88 s | Ryōta Suzuki Josai University | 20.89 s |
| 400 metres | Rikuya Ito Waseda University | 45.94 s | Daichi Inoue Nihon University | 46.48 s | Fuga Sato Nasu Kankyo | 46.50 s |
| 800 metres | Daichi Setoguchi Yamanashi Gakuin University | 1:47.70 min | Mikuto Kaneko Chuo University | 1:47.95 min | Junya Matsumoto Hosei University | 1:48.04 min |
| 1500 metres | Ryoji Tatezawa DeNA | 3:41.32 min | Ryota Matono Mitsubishi Heavy Industries | 3:41.82 min | Yasunari Kusu Ami AC | 3:41.89 min |
| 5000 metres | Yuta Bando Fujitsu | 13:18.49 min | Hiroki Matsueda Fujitsu | 13:24.78 min | Yamato Yoshii Chuo University | 13:25.87 min NU20R |
| 10,000 metres | Akira Aizawa Asahi Kasei | 27:18.75 min NR | Tatsuhiko Ito Honda | 27:25.73 min | Kazuki Tamura Sumitomo Electric Industries | 27:28.92 min |
| Marathon | Naoya Sakuda JR East | 2:08:59 h | Shoma Yamamoto NTT West | 2:09:18 h | Shoya Okuno Toyota Kyushu | 2:09:28 h |
| 110 m hurdles (wind: −0.1 m/s) | Taio Kanai Mizuno Corporation | 13.36 s | Shunya Takayama Zenrin | 13.47 s | Shunsuke Izumiya Juntendo University | 13.48 s |
| 400 m hurdles | Takatoshi Abe Yamada Corporation | 49.73 s | Tatsuhiro Yamamoto Nihon University | 49.79 s | Masaki Toyoda Fujitsu | 49.96 s |
| 3000 m s'chase | Kōsei Yamaguchi Aisan Industry | 8:24.19 min | Yasunari Kusu Ami AC | 8:28.01 min | Ryoma Aoki Honda | 8:30.81 min |
| 4 × 100 m relay | Hosei University Naruhito Kuwata Rikuto Higuchi Takuto Eto Kazuma Higuchi | 39.49 s | Waseda University Reona Miura Aoi Inage Daichi Sawa Akira Matsumoto | 39.69 s | Kindai University Ryuta Nishizawa Yuta Kawanishi Tsubasa Sakai Koki Kasatani | 39.77 s |
| 4 × 400 m relay | Nihon University Yushi Uike Kosuke Shoji Tatsuhiro Yamamoto Daichi Inoue | 3:04.68 min | Waseda University Tomohiro Kokubo Rion Kotake Shunta Fujiyoshi Rikuya Ito | 3:05.00 min | Juntendo University Kotaro Muratomi Nenji Yamasaki Kuraki Kasai Tomoki Matsuoka | 3:06.54 min |
| 20 km walk | | | | | | |
| High jump | Tomohiro Shinno Kyudenko | 2.30 m | Naoto Hasegawa Niigata Albirex RCRyo Sato Niigata Albirex RCTakashi Eto Ajinomoto AGF | 2.20 m | Not awarded | Not awarded |
| Pole vault | Koki Kuruma Striders AC | 5.60 m | Seito Yamamoto Toyota | 5.60 m | Kosei Takekawa Marumoto Sangyo | 5.50 m |
| Long jump | Hibiki Tsuha Ōtsuka Seiyaku | 7.99 m | Daiki Oda Yamada Corporation | 7.81 m | Riku Ito Kinkidai-Kogyo High School | 7.75 m |
| Triple jump | Hikaru Ikehata Surugadai AC | 16.54 m | Yuki Yamashita Kokushikan Club | 16.28 m | Kohei Nakayama Watanabe Pipe | 16.05 m |
| Shot put | Shinichi Yukinaga Shikoku University | 17.77 m | Hikaru Murakami Shikoku University | 17.73 m | Masahira Sato Niigata Albirex RC | 17.68 m |
| Discus throw | Yuji Tsutsumi Alsok | 60.24 m | Masateru Yugami Toyota | 56.57 m | Shinichi Yukinaga Shikoku University | 55.89 m |
| Hammer throw | Ryota Kashimura Yamada Corporation | 71.03 m | Takahiro Kobata Chukyo University | 70.23 m | Shota Fukuda Nihon University | 69.30 m |
| Javelin throw | Ryohei Arai Suzuki | 81.57 m | Genki Dean Mizuno Corporation | 80.07 m | Tatsuya Sakamoto Osaka-Taiiku University | 78.07 m |
| Decathlon | Akihiko Nakamura Suzuki | 7739 pts | Keisuke Ushiro Kokushikan Club | 7684 pts | Shun Taue Juntendo University | 7619 pts |
| Cross country | | | | | | |

### Women

| Event | Gold | Gold | Silver | Silver | Bronze | Bronze |
| 100 metres (wind: +0.5 m/s) | Mei Kodama University of Fukuoka | 11.36 s | Remi Tsuruta MinamiKyushu FamilyMart | 11.53 s | Yu Ishikawa Soyo High School | 11.66 s |
| 200 metres (wind: −0.1 m/s) | Remi Tsuruta MinamiKyushu FamilyMart | 23.17 s | Mei Kodama University of Fukuoka | 23.44 s | Sayaka Oishi Cerespo | 23.78 s |
| 400 metres | Seika Aoyama Osaka Seikei AC | 53.55 s | Nanako Matsumoto Toho Bank | 53.77 s | Saki Takashima Aoyama Gakuin University | 53.81 s |
| 800 metres | Ayaka Kawata Higashiosaka University | 2:03.54 min | Ayano Shiomi Ritsumeikan University | 2:04.24 min | Ran Urabe Sekisui Chemical | 2:04.56 min |
| 1500 metres | Nozomi Tanaka Toyota Industries TC | 4:10.21 min | Nanaka Yonezawa Sendai-Ikuei High School | 4:15.62 min | Yume Goto Toyota Industries TC | 4:16.18 min |
| 5000 metres | Nozomi Tanaka Toyota Industries | 15:05.65 min | Ririka Hironaka Japan Post Holdings | 15:07.11 min | Kaede Hagitani Edion | 15:19.41 min |
| 10,000 metres | Hitomi Niiya Sekisui Chemical | 30:20.44 min NR | Mao Ichiyama Wacoal | 31:11.56 min | Sayaka Sato Sekisui Chemical | 31:30.19 min |
| Marathon | Mao Ichiyama Wacoal | 2:20:29 h | Yuka Ando Wacoal | 2:22:41 h | Sayaka Sato Sekisui Chemical | 2:23:27 h |
| 100 m hurdles (wind: −0.1 m/s) | Masumi Aoki 77 Bank | 13.02 s | Asuka Terada Pasona Group | 13.14 s | Nana Fujimori Zenrin | 13.33 s |
| 400 m hurdles | Ayesha Ibrahim Sapporo International University | 56.50 s | Eri Utsunomiya Hasegawa Sports Facilities | 57.09 s | Akiko Ito Cerespo | 57.34 s |
| 3000 m s'chase | Yukari Ishizawa Edion | 9:48,76 min | Reimi Yoshimura Daito Bunka University | 9:49,45 min | Yui Yabuta Otsuka Pharmaceutical | 9:52,19 min |
| 4 × 100 m relay | Toho Bank Hitomi Shimura Konomi Takeishi Mae Hirosawa Nanako Matsumoto | 45.03 s | University of Fukuoka Yuki Kido Mei Kodama Kirari Watanabe Shiori Kato | 45.26 s | Ritsumeikan University Mina Nishida Yumi Tanaka Ayane Usui Aiko Iki | 45.63 s |
| 4 × 400 m relay | Toho Bank Konomi Takeishi Hitomi Shimura Mae Hirosawa Nanako Matsumoto | 3:35.42 min | Waseda University Natsumi Murakami Kana Koyama Moeka Sekimoto Rui Tsugawa | 3:37.15 min | Aoyama Gakuin University Hinako Yoshinaka Ayano Fujii Ayumi Nakao Saki Takashima | 3:40.55 min |
| 20 km walk | | | | | | |
| High jump | Sheriai Tsuda Tsukiji Gindako AC | 1.78 m | Moe Takeuchi Daito-Bunka UniversitySuzuna Tokumoto Yuboku | 1.75 m | Not awarded | Not awarded |
| Pole vault | Mayu Nasu Run Journey | 4.20 m | Misaki Morota Chuo University | 4.00 m | Jun Maekawa Nippon-Taiiku University | 4.00 m |
| Long jump | Ayaka Kora University of Tsukuba | 6.32 m | Nagisa Yamamoto Kanoya-Taiiku University | 6.25 m | Sumire Hata Shibata Industrial | 6.12 m |
| Triple jump | Mariko Morimoto Uchida Kensetsu AC | 13.14 m | Asuka Yamamoto Kokushikan Club | 12.85 m | Eri Sakamoto Nihon Shitsunai TC | 12.76 m |
| Shot put | Yuka Takahashi Kyushu-Kyoritsu University | 15.26 m | Fumika Ono University of Saitama | 15.21 m | Honoka Oyama University of Fukuoka | 15.05 m |
| Discus throw | Maki Saito Tokyo-Joshi-Taiiku University | 55.41 m | Minori Tsujikawa Uchida Yoko AC | 51.62 m | Natsumi Fujimori Fukui Sports Association | 50.46 m |
| Hammer throw | Akane Watanabe Maruwa | 64.84 m | Hitomi Katsuyama Oriko | 62.47 m | Miharu Kodate Ryutsu-Keizai University | 60.80 m |
| Javelin throw | Yuka Sato Nico-Nico Nori | 59.32 m | Haruka Kitaguchi Japan Airlines | 59.30 m | Momone Ueda University of Fukuoka | 58.25 m |
| Heptathlon | Yuki Yamasaki Suzuki | 5799 pts | Karin Odama Nippon-Taiiku University | 5358 pts | Runa Fujimoto Kanazawa-Seiryo University | 5218 pts |
| Cross country | | | | | | |