Federation · JPN
Japan national best marks
Best marks by Japan athletes in each event, compiled from the all-time lists we import. Derived national bests — not official national records (see note below).
208
Stored marks
129
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 | Toshikazu Yamanishi | 1:17:15 | 17 Mar 2019 | — | 23 |
| 5 | Toshikazu Yamanishi | 1:17:20 | 21 Feb 2021 | — | 25 |
| 6 | Masatora Kawano | 1:17:24 | 17 Mar 2019 | — | 20 |
| 6= | Satoshi Maruo | 1:17:24 | 16 Feb 2025 | — | 33 |
| 8 | Koki Ikeda | 1:17:25 | 17 Mar 2019 | — | 20 |
| 9 | Eiki Takahashi | 1:17:26 | 18 Feb 2018 | — | 25 |
| 10 | Toshikazu Yamanishi | 1:17:36 | 18 Feb 2018 | — | 22 |
| 10= | Toshikazu Yamanishi | 1:17:36 | 16 Feb 2020 | — | 24 |
| 12 | Kento Yoshikawa | 1:17:38 | 16 Feb 2025 | — | — |
| 13 | Toshikazu Yamanishi | 1:17:41 | 8 Jun 2019 | — | 23 |
| 14 | Yusuke Suzuki | 1:17:47 | 17 Mar 2019 | — | 31 |
| 14= | Toshikazu Yamanishi | 1:17:47 | 18 May 2024 | — | 28 |
| 16 | Isamu Fujisawa | 1:17:52 | 17 Mar 2019 | — | — |
| 17 | Ryo Hamanishi | 1:17:53 | 16 Feb 2025 | — | — |
| 18 | Yusuke Suzuki | 1:17:54 | 8 Jun 2019 | — | 31 |
| 19 | Toshikazu Yamanishi | 1:17:56 | 27 Oct 2024 | — | 28 |
| 20 | Koki Ikeda | 1:17:59 | 18 May 2024 | — | 26 |
| 21 | Eiki Takahashi | 1:18:00 | 17 Feb 2019 | — | 26 |
| 22 | Koki Ikeda | 1:18:01 | 17 Feb 2019 | — | 20 |
| 23 | Eiki Takahashi | 1:18:03 | 15 Feb 2015 | — | 22 |
| 24 | Eiki Takahashi | 1:18:04 | 21 Feb 2021 | — | 28 |
| 25 | Toshikazu Yamanishi | 1:18:10 | 17 Feb 2019 | — | 23 |
| 26 | Yusuke Suzuki | 1:18:13 | 15 Feb 2015 | — | 27 |
| 27 | Toshikazu Yamanishi | 1:18:15 | 7 Jun 2025 | — | 29 |
| 28 | Yusuke Suzuki | 1:18:17 | 16 Feb 2014 | — | 26 |
| 29 | Eiki Takahashi | 1:18:18 | 19 Feb 2017 | — | 24 |
| 30 | Masatora Kawano | 1:18:19 | 7 Jun 2025 | — | 26 |
| 31 | Koki Ikeda | 1:18:22 | 15 Mar 2020 | — | 21 |
| 32 | Isamu Fujisawa | 1:18:23 | 19 Feb 2017 | — | — |
| 32= | Kazuki Takahashi | 1:18:23 | 16 Feb 2025 | — | — |
| 34 | Eiki Takahashi | 1:18:26 | 21 Feb 2016 | — | 23 |
| 34= | Yuta Koga | 1:18:26 | 16 Feb 2025 | — | — |
| 36 | Eiki Takahashi | 1:18:29 | 15 Mar 2020 | — | 27 |
| 37 | Yusuke Suzuki | 1:18:34 | 10 Mar 2013 | — | 25 |
| 38 | Yusuke Suzuki | 1:18:36 | 15 Mar 2020 | — | 32 |
| 38= | Koki Ikeda | 1:18:36 | 19 Feb 2023 | — | 24 |
| 40 | Eiki Takahashi | 1:18:41 | 16 Feb 2014 | — | 21 |
| 41 | Yuta Koga | 1:18:42 | 15 Mar 2020 | — | — |
| 41= | Motofumi Suwa | 1:18:42 | 16 Feb 2025 | — | — |
| 43 | Hayato Katsuki | 1:18:43 | 17 Mar 2024 | — | 33 |
| 44 | Isamu Fujisawa | 1:18:45 | 21 Feb 2016 | — | — |
| 44= | Koki Ikeda | 1:18:45 | 21 Feb 2021 | — | 22 |
| 46 | Hiroto Jusho | 1:18:46 | 27 Oct 2024 | — | — |
| 47 | Yuta Koga | 1:18:48 | 16 Mar 2025 | — | — |
| 48 | Masatora Kawano | 1:18:52 | 22 Oct 2023 | — | 24 |
| 48= | Atsuki Tsuchiya | 1:18:52 | 16 Feb 2025 | — | — |
| 48= | Haruki Manju | 1:18:52 | 1 Jan 2026 | — | — |
| 51 | Isamu Fujisawa | 1:18:53 | 17 Feb 2019 | — | — |
| 52 | Masatora Kawano | 1:18:54 | 17 Mar 2024 | — | 25 |
| 53 | Hayato Katsuki | 1:18:56 | 1 Jan 2026 | — | 35 |
| 54 | Tomohiro Noda | 1:19:00 | 17 Feb 2019 | — | 23 |
| 54= | Hirooki Arai | 1:19:00 | 17 Feb 2019 | — | — |
| 56 | Yusuke Suzuki | 1:19:02 | 17 Feb 2013 | — | 25 |
| 56= | Yuta Koga | 1:19:02 | 19 Aug 2023 | — | — |
| 58 | Toshikazu Yamanishi | 1:19:03 | 19 Feb 2017 | — | 21 |
| 59 | Eiki Takahashi | 1:19:04 | 20 Feb 2022 | — | 29 |
| 59= | Yurato Murayama | 1:19:04 | 16 Feb 2025 | — | — |
| 61 | Koki Ikeda | 1:19:07 | 16 Feb 2020 | — | 21 |
| 61= | Toshikazu Yamanishi | 1:19:07 | 15 Jul 2022 | — | 26 |
| 61= | Eiki Takahashi | 1:19:07 | 19 Feb 2023 | — | 30 |
| 61= | Hiroto Jusho | 1:19:07 | 16 Mar 2025 | — | — |
| 65 | Isamu Fujisawa | 1:19:08 | 15 Mar 2015 | — | — |
| 65= | Daisuke Matsunaga | 1:19:08 | 15 Mar 2015 | — | — |
| 67 | Kai Kobayashi | 1:19:12 | 15 Mar 2015 | — | — |
| 67= | Satoshi Maruo | 1:19:12 | 17 Mar 2024 | — | 32 |
| 67= | Kento Yoshikawa | 1:19:12 | 17 Mar 2024 | — | — |
| 70 | Kai Kobayashi | 1:19:13 | 19 Feb 2017 | — | — |
| 70= | Eiki Takahashi | 1:19:13 | 8 Jun 2019 | — | 26 |
| 72 | Koki Ikeda | 1:19:14 | 15 Jul 2022 | — | 24 |
| 73 | Kazuki Takahashi | 1:19:17 | 18 May 2024 | — | — |
| 74 | Yusuke Suzuki | 1:19:19 | 4 May 2014 | — | 26 |
| 74= | Yuta Koga | 1:19:19 | 19 Mar 2023 | — | — |
| 76 | Haruki Manju | 1:19:20 | 17 Mar 2024 | — | — |
| 77 | Hirooki Arai | 1:19:25 | 19 Feb 2017 | — | — |
| 77= | Yurato Murayama | 1:19:25 | 19 Mar 2023 | — | — |
| 79 | Kazuki Takahashi | 1:19:26 | 22 Oct 2023 | — | — |
| 79= | Tomohiro Noda | 1:19:26 | 18 May 2024 | — | 28 |
| 81 | Satoshi Yanagisawa | 1:19:29 | 30 Jan 2000 | — | — |
| 82 | Hayato Katsuki | 1:19:34 | 7 Jun 2025 | — | 34 |
| 83 | Toshikazu Yamanishi | 1:19:37 | 5 May 2024 | — | 28 |
| 84 | Hiroto Jusho | 1:19:39 | 1 Jan 2025 | — | — |
| 85 | Daisuke Matsunaga | 1:19:40 | 19 Mar 2017 | — | — |
| 85= | Keisuke Hara | 1:19:40 | 16 Mar 2025 | — | — |
| 87 | Koki Ikeda | 1:19:41 | 1 Aug 2024 | — | 26 |
| 88 | Daisuke Ikeshima | 1:19:42 | 30 Jan 2000 | — | — |
| 88= | Satoshi Maruo | 1:19:42 | 15 Mar 2015 | — | 23 |
| 90 | Koki Ikeda | 1:19:44 | 19 Aug 2023 | — | 25 |
| 91 | Motofumi Suwa | 1:19:45 | 17 Mar 2024 | — | — |
| 92 | Kento Yoshikawa | 1:19:46 | 20 Sep 2025 | — | — |
| 93 | Rihito Ishida | 1:19:48 | 16 Feb 2025 | — | — |
| 94 | Tomohiro Noda | 1:19:49 | 2 Jun 2018 | — | 22 |
| 95 | Daisuke Ikeshima | 1:19:50 | 1 Nov 1998 | — | — |
| 95= | Yuta Koga | 1:19:50 | 1 Aug 2024 | — | — |
| 97 | Hayoto Yanagihara | 1:19:51 | 16 Mar 2025 | — | — |
| 97= | Satoshi Maruo | 1:19:51 | 7 Jun 2025 | — | 33 |
| 99 | Tomohiro Noda | 1:19:52 | 19 Feb 2023 | — | 27 |
| 100 | Eiki Takahashi | 1:19:53 | 16 Feb 2020 | — | 27 |
| 100= | Daisuke Matsunaga | 1:19:53 | 20 Mar 2022 | — | — |
| 102 | Hirooki Arai | 1:19:54 | 21 Feb 2016 | — | — |
| 102= | Yuta Koga | 1:19:54 | 21 Apr 2024 | — | — |
| 104 | Hayato Katsuki | 1:19:55 | 16 Feb 2025 | — | 34 |
| 104= | Taisei Yoshizako | 1:19:55 | 16 Mar 2025 | — | — |
| 106 | Hirooki Arai | 1:19:56 | 8 Jun 2019 | — | — |
| 106= | Haruki Manju | 1:19:56 | 18 May 2024 | — | — |
| 108 | Yusuke Suzuki | 1:20:01 | 1 Jan 2020 | — | 31 |
| 108= | Yushi Nakajima | 1:20:01 | 1 Jan 2026 | — | — |
| 110 | Satoshi Maruo | 1:20:02 | 21 Feb 2021 | — | 29 |
| 111 | Isamu Fujisawa | 1:20:03 | 16 Feb 2014 | — | — |
| 112 | Eiki Takahashi | 1:20:04 | 4 May 2014 | — | 21 |
| 112= | Tomohiro Noda | 1:20:04 | 19 Mar 2017 | — | 21 |
| 112= | Isamu Fujisawa | 1:20:04 | 13 Aug 2017 | — | — |
| 115 | Takumi Saito | 1:20:05 | 17 Feb 2013 | — | — |
| 116 | Yusuke Suzuki | 1:20:06 | 14 Mar 2010 | — | 22 |
| 116= | Tomohiro Noda | 1:20:06 | 7 Jun 2025 | — | 29 |
| 118 | Tomohiro Noda | 1:20:08 | 15 Mar 2015 | — | 19 |
| 118= | Eiki Takahashi | 1:20:08 | 6 Jun 2015 | — | 22 |
| 118= | Atsuki Tsuchiya | 1:20:08 | 27 Jul 2025 | — | — |
| 121 | Satoshi Maruo | 1:20:09 | 20 Sep 2025 | — | 33 |
| 122 | Masatora Kawano | 1:20:11 | 2 Jun 2018 | — | 19 |
| 123 | Isamu Fujisawa | 1:20:12 | 14 Mar 2010 | — | — |
| 124 | Koichiro Morioka | 1:20:14 | 17 Feb 2013 | — | — |
| 124= | Takumi Saito | 1:20:14 | 21 Feb 2016 | — | — |
| 124= | Satoshi Maruo | 1:20:14 | 21 Feb 2016 | — | 24 |
| 124= | Hiroto Jusho | 1:20:14 | 20 Feb 2022 | — | — |
| 128 | Daisuke Ikeshima | 1:20:15 | 31 Jan 1999 | — | — |
| 128= | Isamu Fujisawa | 1:20:15 | 16 Feb 2020 | — | — |
| 128= | Haruki Manju | 1:20:15 | 19 Mar 2023 | — | — |
| 131 | Akihiko Koike | 1:20:16 | 30 Jan 2000 | — | — |
| 131= | Yurato Murayama | 1:20:16 | 18 May 2024 | — | — |
| 133 | Yurato Murayama | 1:20:17 | 1 Jan 2025 | — | — |
| 133= | Subaru Ishida | 1:20:17 | 16 Feb 2025 | — | — |
| 135 | Atsuki Tsuchiya | 1:20:18 | 16 Mar 2025 | — | — |
| 136 | Eiki Takahashi | 1:20:19 | 21 Mar 2021 | — | 28 |
| 137 | Takumi Saito | 1:20:21 | 16 Feb 2014 | — | — |
| 138 | Daisuke Matsunaga | 1:20:22 | 12 Aug 2016 | — | — |
| 139 | Isamu Fujisawa | 1:20:23 | 16 Mar 2014 | — | — |
| 139= | Satoshi Maruo | 1:20:23 | 21 Apr 2024 | — | 32 |
| 141 | Yuta Koga | 1:20:24 | 17 Mar 2019 | — | — |
| 141= | Isamu Fujisawa | 1:20:24 | 15 Mar 2020 | — | — |
| 141= | Tomohiro Noda | 1:20:24 | 20 Feb 2022 | — | 26 |
| 144 | Eiki Takahashi | 1:20:25 | 17 Feb 2013 | — | 20 |
| 144= | Eiki Takahashi | 1:20:25 | 19 Aug 2023 | — | 30 |
| 146 | Tomohiro Noda | 1:20:26 | 16 Feb 2020 | — | 24 |
| 146= | Yuta Koga | 1:20:26 | 7 Jun 2025 | — | — |
| 146= | Keisuke Hara | 1:20:26 | 27 Jul 2025 | — | — |
| 149 | Daisuke Ikeshima | 1:20:27 | 19 Apr 1997 | — | — |
| 150 | Hiroto Jusho | 1:20:28 | 19 Feb 2023 | — | — |
| 151 | Isamu Fujisawa | 1:20:29 | 21 Feb 2021 | — | — |
| 152 | Koichiro Morioka | 1:20:30 | 16 Feb 2014 | — | — |
| 153 | Toshihito Fujinohara | 1:20:31 | 26 Jan 2003 | — | — |
| 153= | Satoshi Maruo | 1:20:31 | 19 Feb 2017 | — | 25 |
| 155 | Hirooki Arai | 1:20:32 | 16 Feb 2020 | — | — |
| 155= | Yushi Nakajima | 1:20:32 | 16 Mar 2025 | — | — |
| 157 | Ryo Hamanishi | 1:20:33 | 1 Aug 2024 | — | — |
| 158 | Yuta Koga | 1:20:34 | 23 Oct 2022 | — | — |
| 159 | Hirooki Arai | 1:20:35 | 15 Feb 2015 | — | — |
| 160 | Eiki Takahashi | 1:20:36 | 13 Aug 2017 | — | 24 |
| 160= | Daisuke Matsunaga | 1:20:36 | 28 Oct 2018 | — | — |
| 162 | Masatora Kawano | 1:20:37 | 19 Feb 2023 | — | 24 |
| 162= | Motofumi Suwa | 1:20:37 | 19 Mar 2023 | — | — |
| 164 | Yuki Yamazaki | 1:20:38 | 26 Jan 2003 | — | — |
| 164= | Isamu Fujisawa | 1:20:38 | 18 Feb 2012 | — | — |
| 164= | Hirooki Arai | 1:20:38 | 16 Feb 2014 | — | — |
| 164= | Kazuhiro Tateiwa | 1:20:38 | 16 Feb 2025 | — | — |
| 164= | Rihito Ishida | 1:20:38 | 16 Mar 2025 | — | — |
| 169 | Takayuki Tanii | 1:20:39 | 25 Jan 2004 | — | — |
| 169= | Subaru Ishida | 1:20:39 | 21 Feb 2021 | — | — |
| 169= | Hiroto Jusho | 1:20:39 | 15 Jul 2022 | — | — |
| 172 | Yuta Koga | 1:20:40 | 20 Mar 2022 | — | — |
| 172= | Yurato Murayama | 1:20:40 | 1 Jan 2023 | — | — |
| 174 | Satoshi Maruo | 1:20:41 | 16 Feb 2020 | — | 28 |
| 175 | Hiroto Jusho | 1:20:42 | 20 Mar 2022 | — | — |
| 176 | Yuki Yamazaki | 1:20:43 | 27 Jan 2002 | — | — |
| 176= | Koichiro Morioka | 1:20:43 | 31 Jan 2010 | — | — |
| 176= | Subaru Ishida | 1:20:43 | 20 Mar 2022 | — | — |
| 179 | Yusuke Suzuki | 1:20:44 | 28 Sep 2014 | — | 26 |
| 179= | Daisuke Matsunaga | 1:20:44 | 3 Jun 2017 | — | — |
| 181 | Takayuki Tanii | 1:20:45 | 26 Jan 2003 | — | — |
| 181= | Kai Kobayashi | 1:20:45 | 15 Feb 2015 | — | — |
| 181= | Fumitaka Oikawa | 1:20:45 | 19 Feb 2017 | — | — |
| 181= | Eiki Takahashi | 1:20:45 | 3 Jun 2017 | — | 24 |
| 181= | Tomohiro Noda | 1:20:45 | 16 Feb 2025 | — | 29 |
| 186 | Akinori Matsuzaki | 1:20:46 | 20 Apr 2003 | — | — |
| 186= | Kento Yoshikawa | 1:20:46 | 27 May 2025 | — | — |
| 188 | Takuya Yoshida | 1:20:47 | 17 Feb 2013 | — | — |
| 188= | Takayuki Tanii | 1:20:47 | 16 Feb 2014 | — | — |
| 188= | Yuta Koga | 1:20:47 | 16 Feb 2020 | — | — |
| 191 | Daisuke Ikeshima | 1:20:48 | 26 Jan 1997 | — | — |
| 191= | Koki Ikeda | 1:20:48 | 22 Oct 2017 | — | 19 |
| 193 | Isamu Fujisawa | 1:20:49 | 20 Mar 2016 | — | — |
| 193= | Motofumi Suwa | 1:20:49 | 1 Jan 2020 | — | — |
| 193= | Yurato Murayama | 1:20:49 | 15 Mar 2020 | — | — |
| 196 | Isamu Fujisawa | 1:20:50 | 17 Feb 2013 | — | — |
| 196= | Toshikazu Yamanishi | 1:20:50 | 28 May 2016 | — | 20 |
| 196= | Toshikazu Yamanishi | 1:20:50 | 4 May 2025 | — | 29 |
| 199 | Takumi Saito | 1:20:51 | 4 May 2014 | — | — |
| 200 | Tomohiro Noda | 1:20:54 | 22 Oct 2017 | — | 21 |
| 201 | Daisuke Matsunaga | 1:20:55 | 18 Mar 2018 | — | — |
| 202 | Takumi Saito | 1:20:56 | 19 Mar 2017 | — | — |
| 202= | Satoshi Maruo | 1:20:56 | 8 Jun 2019 | — | 27 |
| 204 | Satoshi Yanagisawa | 1:20:57 | 27 Jan 2002 | — | — |
| 204= | Satoshi Maruo | 1:20:57 | 25 Oct 2015 | — | 23 |
| 204= | Tomohiro Noda | 1:20:57 | 21 Feb 2021 | — | 25 |
| 207 | Toshikazu Yamanishi | 1:20:58 | 6 May 2023 | — | 27 |
| 208 | Tomohiro Noda | 1:20:59 | 15 Feb 2015 | — | 19 |
Every mark in scope within the compiled depth. 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.