# Japan at the 2019 World Athletics Championships

Japan competed at the 2019 World Championships in Athletics in Doha, Qatar from 27 September to 6 October 2019. The country finished in 8th place in the medal table.

## Medalists

| Medal | Athlete | Event | Date |
| Gold | Toshikazu Yamanishi | Men's 20 kilometres walk | October 4 |
| Gold | Yusuke Suzuki | Men's 50 kilometres walk | September 28 |
| Bronze | Shuhei Tada Kirara Shiraishi Yoshihide Kiryū Abdul Hakim Sani Brown Yuki Koike* | Men's 4 × 100 metres relay | September 5 |

## Results
### Key

* Note–Ranks given for track events are within the athlete's heat only
* Q = Qualified for the next round
* q = Qualified for the next round as a fastest loser or, in field events, by position without achieving the qualifying target
* NR = National record
* N/A = Round not applicable for the event
* Bye = Athlete not required to compete in round

### Men
#### Track & road

| Athlete | Event | Heat | Heat | Quarterfinal | Quarterfinal | Semifinal | Semifinal | Final | Final |
| Athlete | Event | Result | Rank | Result | Rank | Result | Rank | Result | Rank |
| Yoshihide Kiryū | 100 m | Bye | Bye | 10.18 | 4 q | 10.16 | 6 | did not advance | did not advance |
| Yuki Koike | 100 m | Bye | Bye | 10.21 | 4 q | 10.28 | 7 | did not advance | did not advance |
| Abdul Hakim Sani Brown | 100 m | Bye | Bye | 10.09 | 3 Q | 10.15 | 5 | did not advance | did not advance |
| Yuki Koike | 200 m | 20.46 | 4 | — | — | did not advance | did not advance | did not advance | did not advance |
| Jun Yamashita | 200 m | 20.62 | 5 | — | — | did not advance | did not advance | did not advance | did not advance |
| Kirara Shiraishi | 200 m | 20.62 | 5 | — | — | did not advance | did not advance | did not advance | did not advance |
| Julian Walsh | 400 m | 45.14 PB | 2 Q | — | — | 45.13 PB | 4 | did not advance | did not advance |
| Shunsuke Izumiya | 110 m hurdles | DNS | DNS | — | — | did not advance | did not advance | did not advance | did not advance |
| Taio Kanai | 110 m hurdles | 13.74 | 7 | — | — | did not advance | did not advance | did not advance | did not advance |
| Shunya Takayama | 110 m hurdles | 13.32 | 2 Q | — | — | 13.58 | 6 | did not advance | did not advance |
| Takatoshi Abe | 400 m hurdles | 49.25 | 2 Q | 48.97 | 3 | — | — | did not advance | did not advance |
| Taio Kanai | 400 m hurdles | 50.34 | 5 q | 50.30 | 8 | — | — | did not advance | did not advance |
| Kirara Shiraishi Yoshihide Kiryu Yuki Koike Shuhei Tada Abdul Hakim Sani Brown | 4 × 100 m relay | 37.78 SB | 2 Q | — | — | — | — | 37.43 AR | |
| Julian Walsh Shota Iizuka Kentaro Sato Kota Wakabayashi | 4 × 400 m relay | 3:02.05 SB | 5 | — | — | — | — | did not advance | did not advance |
| Hiroki Yamagishi | Marathon | — | — | — | — | — | — | 2:16.43 SB | 25 |
| Yuki Kawauchi | Marathon | — | — | — | — | — | — | 2:17.59 | 29 |
| Kohei Futaoka | Marathon | — | — | — | — | — | — | 2:19.23 | 37 |
| Koki Ikeda | 20 km walk | — | — | — | — | — | — | 1:29.02 | 6 |
| Toshikazu Yamanishi | 20 km walk | — | — | — | — | — | — | 1:26.34 | |
| Eiki Takahashi | 20 km walk | — | — | — | — | — | — | 1:30.04 | 10 |
| Yusuke Suzuki | 50 km walk | — | — | — | — | — | — | 4:04.20 | |
| Hayato Katsuki | 50 km walk | — | — | — | — | — | — | 4:46.10 | 27 |
| Tomohiro Noda | 50 km walk | — | — | — | — | — | — | DNF | DNF |

#### Field

| Athlete | Event | Qualification | Qualification | Final | Final |
| Athlete | Event | Distance | Position | Distance | Position |
| Naoto Tobe | High jump | 2.26 | 14 | did not advance | did not advance |
| Ryo Sato | High jump | 2.22 | 22 | did not advance | did not advance |
| Takashi Eto | High jump | 2.17 | =25 | did not advance | did not advance |
| Seito Yamamoto | Pole vault | 5.60 | 20 | did not advance | did not advance |
| Daichi Sawano | Pole vault | 5.45 | 27 | did not advance | did not advance |
| Masaki Ejima | Pole vault | 5.47 | 28 | did not advance | did not advance |
| Yuki Hashioka | Long Jump | 8.07 | 3 q | 7.97 | 8 |
| Shotaro Shiroyama | Long Jump | 7.94 | 8 q | 7.77 | 11 |
| Hibiki Tsuha | Long Jump | 7.72 | 18 | did not advance | did not advance |
| Ryohei Arai | Javelin throw | 81.71 | 15 | did not advance | did not advance |

#### Combined - Decathlon

| Athlete | Event | 100 m | LJ | SP | HJ | 400 m | 110H | DT | PV | JT | 1500 m | Final | Rank |
| Keisuke Ushiro | Result | 11.44 | 6.90 | 14.31 | 1.90 | 51.42 SB | 15.26 | 48.41 SB | 4.40 SB | 61.36 | 4:52.12 | 7545 | 16 |
| Keisuke Ushiro | Points | 765 | 790 | 747 | 714 | 750 | 818 | 837 | 731 | 758 | 606 | 7545 | 16 |

### Women
#### Track & road

| Athlete | Event | Heat | Heat | Semifinal | Semifinal | Final | Final |
| Athlete | Event | Result | Rank | Result | Rank | Result | Rank |
| Nozomi Tanaka | 5000 m | 15:04.66 PB | 12 q | — | — | 15:00.01 PB | 14 |
| Tomoka Kimura | 5000 m | 15:53.08 | 24 | — | — | did not advance | did not advance |
| Hitomi Niiya | 10,000 m | — | — | — | — | 31:12.99 SB | 11 |
| Minami Yamanouchi | 10,000 m | — | — | — | — | 32:53.46 | 19 |
| Mizuki Tanimoto | Marathon | — | — | — | — | 2:39:09 | 7 |
| Madoka Nakano | Marathon | 2:42:39 | 11 |
| Ayano Ikemitsu | Marathon | did not finish | did not finish |
| Reimi Yoshimura | 3000 m steeplechase | 9:55.72 | 39 | — | — | did not advance | did not advance |
| Ayako Kimura | 100 m hurdles | 13.19 | 28 | did not advance | did not advance | did not advance | did not advance |
| Asuka Terada | 100 m hurdles | 13.20 | 29 | did not advance | did not advance | did not advance | did not advance |
| Kumiko Okada | 20 km walk | — | — | — | — | 1:34:36 | 6 |
| Nanako Fujii | 20 km walk | 1:34:50 | 7 |
| Masumi Fuchise | 50 km walk | — | — | — | — | 4:41:02 | 11 |

#### Field

| Athlete | Event | Qualification | Qualification | Final | Final |
| Athlete | Event | Distance | Position | Distance | Position |
| Nanaka Kori | Discus throw | 48.82 | 29 | did not advance | did not advance |
| Haruka Kitaguchi | Javelin throw | 60.84 | 13 | did not advance | did not advance |
| Yuka Sato | Javelin throw | 55.03 | 29 | did not advance | did not advance |

### Mixed
#### Track & road

| Athlete | Event | Heat | Heat | Semifinal | Semifinal | Final | Final |
| Athlete | Event | Result | Rank | Result | Rank | Result | Rank |
| Seika Aoyama Kota Wakabayashi Tomoya Tamura Saki Takashima | 4 × 400 m relay | 3:18.77 NR | 16 | — | — | did not advance | did not advance |