Federation · JPN
Japan national best marks
Best mark per athlete by Japan athletes in each event, compiled from the all-time lists we import. Derived national bests — not official national records (see note below).
39
Stored athletes
35
Distinct marks shown
Men's 20 km Walk
Derived 14 Sep 2026
| # | Athlete | Mark | Date | Venue | Age |
|---|---|---|---|---|---|
| 1 | Toshikazu Yamanishi | 1:16:10 | 16 Feb 2025 | — | 29 |
| 2 | Yusuke Suzuki | 1:16:36 | 15 Mar 2015 | — | 27 |
| 3 | Koki Ikeda | 1:16:51 | 18 Feb 2024 | — | 25 |
| 4 | Masatora Kawano | 1:17:24 | 17 Mar 2019 | — | 20 |
| 4= | Satoshi Maruo | 1:17:24 | 16 Feb 2025 | — | 33 |
| 6 | Eiki Takahashi | 1:17:26 | 18 Feb 2018 | — | 25 |
| 7 | Kento Yoshikawa | 1:17:38 | 16 Feb 2025 | — | — |
| 8 | Isamu Fujisawa | 1:17:52 | 17 Mar 2019 | — | — |
| 9 | Ryo Hamanishi | 1:17:53 | 16 Feb 2025 | — | — |
| 10 | Kazuki Takahashi | 1:18:23 | 16 Feb 2025 | — | — |
| 11 | Yuta Koga | 1:18:26 | 16 Feb 2025 | — | — |
| 12 | Motofumi Suwa | 1:18:42 | 16 Feb 2025 | — | — |
| 13 | Hayato Katsuki | 1:18:43 | 17 Mar 2024 | — | 33 |
| 14 | Hiroto Jusho | 1:18:46 | 27 Oct 2024 | — | — |
| 15 | Atsuki Tsuchiya | 1:18:52 | 16 Feb 2025 | — | — |
| 15= | Haruki Manju | 1:18:52 | 1 Jan 2026 | — | — |
| 17 | Tomohiro Noda | 1:19:00 | 17 Feb 2019 | — | 23 |
| 17= | Hirooki Arai | 1:19:00 | 17 Feb 2019 | — | — |
| 19 | Yurato Murayama | 1:19:04 | 16 Feb 2025 | — | — |
| 20 | Daisuke Matsunaga | 1:19:08 | 15 Mar 2015 | — | — |
| 21 | Kai Kobayashi | 1:19:12 | 15 Mar 2015 | — | — |
| 22 | Satoshi Yanagisawa | 1:19:29 | 30 Jan 2000 | — | — |
| 23 | Keisuke Hara | 1:19:40 | 16 Mar 2025 | — | — |
| 24 | Daisuke Ikeshima | 1:19:42 | 30 Jan 2000 | — | — |
| 25 | Rihito Ishida | 1:19:48 | 16 Feb 2025 | — | — |
| 26 | Hayoto Yanagihara | 1:19:51 | 16 Mar 2025 | — | — |
| 27 | Taisei Yoshizako | 1:19:55 | 16 Mar 2025 | — | — |
| 28 | Yushi Nakajima | 1:20:01 | 1 Jan 2026 | — | — |
| 29 | Takumi Saito | 1:20:05 | 17 Feb 2013 | — | — |
| 30 | Koichiro Morioka | 1:20:14 | 17 Feb 2013 | — | — |
| 31 | Akihiko Koike | 1:20:16 | 30 Jan 2000 | — | — |
| 32 | Subaru Ishida | 1:20:17 | 16 Feb 2025 | — | — |
| 33 | Toshihito Fujinohara | 1:20:31 | 26 Jan 2003 | — | — |
| 34 | Yuki Yamazaki | 1:20:38 | 26 Jan 2003 | — | — |
| 34= | Kazuhiro Tateiwa | 1:20:38 | 16 Feb 2025 | — | — |
| 36 | Takayuki Tanii | 1:20:39 | 25 Jan 2004 | — | — |
| 37 | Fumitaka Oikawa | 1:20:45 | 19 Feb 2017 | — | — |
| 38 | Akinori Matsuzaki | 1:20:46 | 20 Apr 2003 | — | — |
| 39 | Takuya Yoshida | 1:20:47 | 17 Feb 2013 | — | — |
One mark per athlete — the athlete's best while representing Japan. Equal marks share a rank ("1=" style). An athlete with marks for two nations appears under each nation represented at the time (e.g. Obikwelu under Nigeria and Portugal).
About this derivation
These lists are derived from the marks in our database — including the complete legal all-time lists imported from alltime-athletics.com — grouped by the nation the athlete was representing at each mark. They are not official national records: federations ratify national records under their own eligibility rules, and some marks here may not qualify.