| Iaaf: | JPN |
| Flagcaption: | Flag of Japan |
| Games Link: | 2019 World Athletics Championships |
| Year: | 2019 |
| Games: | World Athletics Championships |
| Fedname: | Japan Association of Athletics Federations |
| Website: | https://www.jaaf.or.jp/english/ |
| Location: | Doha, Qatar |
| Gold: | 2 |
| Silver: | 0 |
| Bronze: | 1 |
| Rank: | 8 |
| Appearances: | auto |
| Previous: | 2017 |
| Next: | 2022 |
Japan competed at the 2019 World Championships in Athletics in Doha, Qatar from 27 September to 6 October 2019.[1] The country finished in 8th place in the medal table.[2]
| Medal | Athlete | Event | Date | |
|---|---|---|---|---|
| Toshikazu Yamanishi | Men's 20 kilometres walk | October 4 | ||
| Yusuke Suzuki | Men's 50 kilometres walk | September 28 | ||
| Shuhei Tada Kirara Shiraishi Yoshihide Kiryū Abdul Hakim Sani Brown Yuki Koike | Men's 4 × 100 metres relay | September 5 |
| Athlete | Event | Heat | Quarterfinal | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|---|
| Result | Rank | Result | Rank | Result | Rank | Result | Rank | ||
| align=left rowspan=3 | 100 m | 10.18 | 4 q | 10.16 | 6 | did not advance | |||
| Yuki Koike | 10.21 | 4 q | 10.28 | 7 | did not advance | ||||
| Abdul Hakim Sani Brown | 10.09 | 3 Q | 10.15 | 5 | did not advance | ||||
| Yuki Koike | align=left rowspan=3 | 200 m | 20.46 | 4 | did not advance | ||||
| Jun Yamashita | 20.62 | 5 | did not advance | ||||||
| Kirara Shiraishi | 20.62 | 5 | did not advance | ||||||
| Julian Walsh | 400 m | 45.14 | 2 Q | 45.13 | 4 | did not advance | |||
| align=left rowspan=3 | 110 m hurdles | did not advance | |||||||
| Taio Kanai | 13.74 | 7 | did not advance | ||||||
| 13.32 | 2 Q | 13.58 | 6 | did not advance | |||||
| align=left rowspan=2 | 400 m hurdles | 49.25 | 2 Q | 48.97 | 3 | did not advance | |||
| Taio Kanai | 50.34 | 5 q | 50.30 | 8 | did not advance | ||||
| Kirara Shiraishi Yoshihide Kiryu Yuki Koike Shuhei Tada Abdul Hakim Sani Brown | 4 × 100 m relay | 37.78 | 2 Q | 37.43 | |||||
| Julian Walsh Shota Iizuka Kentaro Sato Kota Wakabayashi | 4 × 400 m relay | 3:02.05 | 5 | did not advance | |||||
| Hiroki Yamagishi | align=left rowspan=3 | Marathon | 2:16.43 | 25 | |||||
| Yuki Kawauchi | 2:17.59 | 29 | |||||||
| Kohei Futaoka | 2:19.23 | 37 | |||||||
| Koki Ikeda | align=left rowspan=3 | 20 km walk | 1:29.02 | 6 | |||||
| Toshikazu Yamanishi | 1:26.34 | ||||||||
| Eiki Takahashi | 1:30.04 | 10 | |||||||
| Yusuke Suzuki | align=left rowspan=3 | 50 km walk | 4:04.20 | ||||||
| Hayato Katsuki | 4:46.10 | 27 | |||||||
| Tomohiro Noda | |||||||||
| Athlete | Event | Qualification | Final | ||||
|---|---|---|---|---|---|---|---|
| Distance | Position | Distance | Position | ||||
| Naoto Tobe | align=left rowspan=3 | High jump | 2.26 | 14 | did not advance | ||
| Ryo Sato | 2.22 | 22 | did not advance | ||||
| Takashi Eto | 2.17 | =25 | did not advance | ||||
| Seito Yamamoto | align=left rowspan=3 | Pole vault | 5.60 | 20 | did not advance | ||
| Daichi Sawano | 5.45 | 27 | did not advance | ||||
| Masaki Ejima | 5.47 | 28 | did not advance | ||||
| Yuki Hashioka | align=left rowspan=3 | Long Jump | 8.07 | 3 q | 7.97 | 8 | |
| Shotaro Shiroyama | 7.94 | 8 q | 7.77 | 11 | |||
| Hibiki Tsuha | 7.72 | 18 | did not advance | ||||
| Ryohei Arai | align=left rowspan=1 | Javelin throw | 81.71 | 15 | did not advance | ||
| Athlete | Event | Final | Rank | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Keisuke Ushiro | style=font-size:95% | Result | 11.44 | 6.90 | 14.31 | 1.90 | 51.42 | 15.26 | 48.41 | 4.40 | 61.36 | 4:52.12 | 7545 | 16 |
| style=font-size:95% | Points | 765 | 790 | 747 | 714 | 750 | 818 | 837 | 731 | 758 | 606 |
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Result | Rank | Result | Rank | Result | Rank | |||
| align=left rowspan=2 | 5000 m | 15:04.66 PB | 12 q | 15:00.01 PB | 14 | |||
| Tomoka Kimura | 15:53.08 | 24 | did not advance | |||||
| align=left rowspan=2 | 10,000 m | 31:12.99 SB | 11 | |||||
| Minami Yamanouchi | 32:53.46 | 19 | ||||||
| align=left rowspan=3 | Marathon | 2:39:09 | 7 | |||||
| Madoka Nakano | 2:42:39 | 11 | ||||||
| Ayano Ikemitsu | did not finish | |||||||
| 3000 m steeplechase | 9:55.72 | 39 | did not advance | |||||
| align=left rowspan=2 | 100 m hurdles | 13.19 | 28 | did not advance | ||||
| 13.20 | 29 | did not advance | ||||||
| align=left rowspan=2 | 20 km walk | 1:34:36 | 6 | |||||
| Nanako Fujii | 1:34:50 | 7 | ||||||
| align=left | 50 km walk | 4:41:02 | 11 | |||||
| Athlete | Event | Qualification | Final | |||
|---|---|---|---|---|---|---|
| Distance | Position | Distance | Position | |||
| Nanaka Kori | Discus throw | 48.82 | 29 | did not advance | ||
| Haruka Kitaguchi | align=left rowspan=2 | Javelin throw | 60.84 | 13 | did not advance | |
| Yuka Sato | 55.03 | 29 | did not advance | |||