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).
71
Stored marks
69
Distinct marks shown
Men's 50 km Walk
Derived 14 Sep 2026
| # | Athlete | Mark | Date | Venue | Age |
|---|---|---|---|---|---|
| 1 | Masatora Kawano | 3:36:45 | 27 Oct 2019 | — | 21 |
| 2 | Satoshi Maruo | 3:37:39 | 27 Oct 2019 | — | 27 |
| 3 | Satoshi Maruo | 3:38:42 | 11 Apr 2021 | — | 29 |
| 4 | Yusuke Suzuki | 3:39:07 | 14 Apr 2019 | — | 31 |
| 5 | Masatora Kawano | 3:39:24 | 14 Apr 2019 | — | 20 |
| 6 | Tomohiro Noda | 3:39:47 | 28 Oct 2018 | — | 22 |
| 7 | Satoshi Maruo | 3:40:04 | 14 Apr 2019 | — | 27 |
| 8 | Yuki Yamazaki | 3:40:12 | 12 Apr 2009 | — | — |
| 9 | Takayuki Tanii | 3:40:19 | 1 Oct 2014 | — | — |
| 10 | Hironori Arai | 3:40:20 | 19 Apr 2015 | — | — |
| 11 | Hirooki Arai | 3:40:34 | 26 Oct 2014 | — | — |
| 12 | Hirooki Arai | 3:41:17 | 13 Aug 2017 | — | — |
| 13 | Kai Kobayashi | 3:41:19 | 13 Aug 2017 | — | — |
| 14 | Hirooki Arai | 3:41:24 | 19 Aug 2016 | — | — |
| 15 | Yuki Yamazaki | 3:41:29 | 26 Oct 2008 | — | — |
| 16 | Takayuki Tanii | 3:41:32 | 20 Apr 2014 | — | — |
| 17 | Yuki Yamazaki | 3:41:47 | 15 Apr 2012 | — | — |
| 18 | Yuki Yamazaki | 3:41:55 | 13 Apr 2008 | — | — |
| 19 | Takayuki Tanii | 3:42:01 | 19 Apr 2015 | — | — |
| 20 | Hayato Katsuki | 3:42:34 | 11 Apr 2021 | — | 30 |
| 21 | Takayuki Tanii | 3:42:55 | 29 Aug 2015 | — | — |
| 22 | Takuya Yoshida | 3:43:02 | 26 Oct 2014 | — | — |
| 22= | Hirooki Arai | 3:43:02 | 14 Apr 2019 | — | — |
| 24 | Satoshi Maruo | 3:43:03 | 13 Aug 2017 | — | 25 |
| 25 | Koichiro Morioka | 3:43:14 | 11 Aug 2012 | — | — |
| 26 | Kai Kobayashi | 3:43:31 | 11 Apr 2021 | — | — |
| 27 | Yuki Yamazaki | 3:43:38 | 16 Apr 2006 | — | — |
| 28 | Yuki Yamazaki | 3:43:40 | 19 Apr 2015 | — | — |
| 29 | Hirooki Arai | 3:43:44 | 29 Aug 2015 | — | — |
| 30 | Kai Kobayashi | 3:43:46 | 14 Apr 2019 | — | — |
| 31 | Takayuki Tanii | 3:43:56 | 15 Apr 2012 | — | — |
| 32 | Takayuki Tanii | 3:44:12 | 17 Apr 2016 | — | — |
| 33 | Yuki Yamazaki | 3:44:23 | 20 Apr 2014 | — | — |
| 34 | Hirooki Arai | 3:44:25 | 5 May 2018 | — | — |
| 35 | Takayuki Tanii | 3:44:26 | 14 Aug 2013 | — | — |
| 36 | Koichiro Morioka | 3:44:27 | 25 Oct 2015 | — | — |
| 37 | Hayato Katsuki | 3:44:31 | 5 May 2018 | — | 27 |
| 38 | Koichiro Morioka | 3:44:45 | 17 Apr 2011 | — | — |
| 39 | Hirooki Arai | 3:44:47 | 17 Apr 2016 | — | — |
| 40 | Satoshi Maruo | 3:44:52 | 5 May 2018 | — | 26 |
| 41 | Hayato Katsuki | 3:45:05 | 14 Apr 2019 | — | 28 |
| 42 | Koichiro Morioka | 3:45:22 | 15 Apr 2012 | — | — |
| 43 | Tomohiro Noda | 3:45:26 | 11 Apr 2021 | — | 25 |
| 44 | Yuki Yamazaki | 3:45:47 | 22 Aug 2008 | — | — |
| 45 | Hirooki Arai | 3:45:56 | 14 Aug 2013 | — | — |
| 45= | Tomohiro Noda | 3:45:56 | 15 Apr 2018 | — | 22 |
| 47 | Takuya Yoshida | 3:46:07 | 19 Apr 2015 | — | — |
| 48 | Koichiro Morioka | 3:46:21 | 3 Sep 2011 | — | — |
| 49 | Kai Kobayashi | 3:46:23 | 27 Oct 2019 | — | — |
| 50 | Kai Kobayashi | 3:46:26 | 28 Oct 2018 | — | — |
| 51 | Isamu Fujisawa | 3:46:27 | 11 Apr 2021 | — | — |
| 52 | Yuki Yamazaki | 3:46:56 | 17 Apr 2010 | — | — |
| 53 | Hirooki Arai | 3:47:18 | 16 Apr 2017 | — | — |
| 54 | Takayuki Tanii | 3:47:23 | 16 Apr 2006 | — | — |
| 55 | Masatora Kawano | 3:47:30 | 28 Oct 2018 | — | 20 |
| 56 | Kazuki Takahashi | 3:47:38 | 11 Apr 2021 | — | — |
| 57 | Yuki Yamazaki | 3:47:40 | 15 Apr 2007 | — | — |
| 58 | Koichiro Morioka | 3:47:41 | 25 Nov 2010 | — | — |
| 59 | Takayuki Tanii | 3:47:54 | 2 Nov 2003 | — | — |
| 60 | Takayuki Tanii | 3:48:03 | 3 Sep 2011 | — | — |
| 61 | Takayuki Tanii | 3:48:21 | 17 Apr 2011 | — | — |
| 62 | Hayato Katsuki | 3:48:36 | 22 Oct 2017 | — | 26 |
| 63 | Hirooki Arai | 3:48:40 | 3 Sep 2011 | — | — |
| 64 | Hironori Arai | 3:48:46 | 17 Apr 2011 | — | — |
| 65 | Koichiro Morioka | 3:49:12 | 12 Apr 2009 | — | — |
| 66 | Satoshi Maruo | 3:49:17 | 16 Apr 2017 | — | 25 |
| 67 | Hirooki Arai | 3:49:18 | 20 Apr 2014 | — | — |
| 68 | Koichiro Morioka | 3:49:29 | 17 Apr 2010 | — | — |
| 69 | Takayuki Tanii | 3:49:33 | 13 Apr 2008 | — | — |
| 70 | Fumio Imamura | 3:49:38 | 12 Apr 1998 | — | — |
| 71 | Hayato Katsuki | 3:49:49 | 16 Apr 2017 | — | 26 |
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.