Japan in Athletics |
  
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Athlete |
Event |
Heat |
Res. |
Pos. |
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| Takatoshi Abe | 400 m hurdles M | Semifinal | 49,93 | 5 | |||
| Round 1 | 49,65 | 2 | Q | ||||
| Yuka Ando | Marathon W | Final | 2.31.31 | 17 | |||
| Hirooki Arai | 50 km walk M | Final | 3.41.17 |  |
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| Ryohei Arai | Javelin throw M | Qualifying Round | 77,38 | 12 | |||
| Asuka Cambridge | 100 m M | Semifinal | 10,25 | 6 | |||
| Round 1 | 10,21 | 4 | q | ||||
| 4x100 m M | Round 1 | 38,21 | 3 | Q | |||
| Yuki Ebihara | Javelin throw W | Qualifying Round | 57,51 | 13 | |||
| Takashi Eto | High jump M | Qualifying Round | 2,22 | 9 | |||
| Kenji Fujimitsu | 4x100 m M | Final | 38,04 |  |
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| Isamu Fujisawa | 20 km walk M | Final | 1.20.04 | 11 | |||
| Kosuke Horii | 4x400 m M | Round 1 | 3.07,29 | 8 | |||
| Shota Iizuka | 200 m M | Semifinal | 20,62 | 5 | |||
| Round 1 | 20,58 | 2 | Q | ||||
| 4x100 m M | Round 1 | 38,21 | 3 | Q | |||
| 4x100 m M | Final | 38,04 | |
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| Hiroto Inoue | Marathon M | Final | 2.16.54 | 26 | |||
| Yusuke Ishida | 400 m hurdles M | Round 1 | 50,35 | 5 | |||
| Ryo Kajiki | 400 m hurdles M | Round 1 | 51,36 | 6 | |||
| Yuzo Kanemaru | 4x400 m M | Round 1 | 3.07,29 | 8 | |||
| Yuki Kawauchi | Marathon M | Final | 2.12.19 | 9 | |||
| Ayako Kimura | 100 m hurdles W | Semifinal | 13,29 | 8 | |||
| Round 1 | 13,15 | 4 | Q | ||||
| Kazushi Kimura | 4x400 m M | Round 1 | 3.07,29 | 8 | |||
| Yoshihide Kiryu | 4x100 m M | Round 1 | 38,21 | 3 | Q | ||
| 4x100 m M | Final | 38,04 | |
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| Takamasa Kitagawa | 400 m M | Round 1 | 47,35 | 6 | |||
| Mao Kiyota | Marathon W | Final | 2.30.36 | 16 | |||
| Kai Kobayashi | 50 km walk M | Final | 3.41.19 | |
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| Satoshi Maruo | 50 km walk M | Final | 3.43.03 | 5 | |||
| Genta Masuno | 110 m hurdles M | Semifinal | 13,79 | 7 | |||
| Round 1 | 13,58 | 4 | Q | ||||
| Mizuki Matsuda | 10000 m W | Final | 31.59,54 | 19 | |||
| Daisuke Matsunaga | 20 km walk M | Final | 1.23.39 | 38 | |||
| Risa Miyashita | Javelin throw W | Qualifying Round | 53,83 | 14 | |||
| Rina Nabeshima | 5000 m W | Round 1 | 15.11,83 | 9 | |||
| Kentaro Nakamoto | Marathon M | Final | 2.12.41 | 10 | |||
| Akihiko Nakamura | Decathlon M | Final standing | 7646 | 19 | |||
| Hiroki Ogita | Pole vault M | Qualifying Round | 5,45 | 9 | |||
| Kumiko Okada | 20 km walk W | Final | 1.31.19 | 18 | |||
| Hideki Omuro | 110 m hurdles M | Round 1 | 13,78 | 7 | |||
| Marina Saito | Javelin throw W | Qualifying Round | 60,86 | 9 | |||
| Abdul Sani Brown | 100 m M | Semifinal | 10,28 | 7 | |||
| Round 1 | 10,05 | 1 | Q | ||||
| 200 m M | Final | 20,63 | 7 | ||||
| Semifinal | 20,43 | 2 | Q | ||||
| Round 1 | 20,52 | 2 | Q | ||||
| Kentaro Sato | 4x400 m M | Round 1 | 3.07,29 | 8 | |||
| Risa Shigetomo | Marathon W | Final | 2.36.03 | 27 | |||
| Hitomi Shimura | 100 m hurdles W | Round 1 | 13,29 | 6 | |||
| Ayuko Suzuki | 10000 m W | Final | 31.27,30 | 10 | |||
| 5000 m W | Round 1 | 15.24,86 | 14 | ||||
| Shuhei Tada | 100 m M | Semifinal | 10,26 | 5 | |||
| Round 1 | 10,19 | 4 | q | ||||
| 4x100 m M | Round 1 | 38,21 | 3 | Q | |||
| 4x100 m M | Final | 38,04 | |
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| Eiki Takahashi | 20 km walk M | Final | 1.20.36 | 14 | |||
| Shunya Takayama | 110 m hurdles M | Round 1 | 13,65 | 7 | |||
| Hironori Tsuetaki | 3000 m steeplechase M | Round 1 | 8.45,81 | 13 | |||
| Miyuki Uehara | 10000 m W | Final | 32.31,58 | 24 | |||
| Keisuke Ushiro | Decathlon M | Final standing | 7498 | 20 | |||
| Ryoma Yamamoto | Triple jump M | Qualifying Round | 16,01 | 15 | |||
| Seito Yamamoto | Pole vault M | Qualifying Round | 5,30 | 15 | |||
