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).
164
Stored marks
123
Distinct marks shown
Women's 20 km Walk
Derived 14 Sep 2026
| # | Athlete | Mark | Date | Venue | Age |
|---|---|---|---|---|---|
| 1 | Nanako Fujii | 1:26:18 | 20 Sep 2025 | — | — |
| 2 | Nanako Fujii | 1:26:33 | 16 Feb 2025 | — | — |
| 3 | Kumiko Okada | 1:27:41 | 8 Jun 2019 | — | 27 |
| 4 | Masumi Fuchise | 1:28:03 | 25 Jan 2009 | — | — |
| 5 | Kumiko Okada | 1:28:17 | 16 Feb 2025 | — | 33 |
| 6 | Kumiko Okada | 1:28:26 | 17 Feb 2019 | — | 27 |
| 7 | Masumi Fuchise | 1:28:41 | 11 Aug 2012 | — | — |
| 8 | Mayumi Kawasaki | 1:28:49 | 25 Jan 2009 | — | — |
| 9 | Mayumi Kawasaki | 1:28:56 | 25 Mar 2007 | — | — |
| 10 | Nanako Fujii | 1:28:58 | 8 Jun 2019 | — | — |
| 11 | Nanako Fujii | 1:29:01 | 15 Jul 2022 | — | — |
| 12 | Kumi Otoshi | 1:29:11 | 20 Feb 2011 | — | — |
| 13 | Mayumi Kawasaki | 1:29:28 | 27 Jan 2008 | — | — |
| 14 | Masumi Fuchise | 1:29:35 | 14 Mar 2010 | — | — |
| 15 | Masumi Fuchise | 1:29:36 | 28 Jan 2007 | — | — |
| 16 | Sachiko Konishi | 1:29:39 | 25 Jan 2009 | — | — |
| 17 | Kumiko Okada | 1:29:40 | 21 Feb 2016 | — | 24 |
| 17= | Kumiko Okada | 1:29:40 | 19 Feb 2017 | — | 25 |
| 19 | Mayumi Kawasaki | 1:29:43 | 21 Aug 2008 | — | — |
| 20 | Ayane Yanai | 1:29:44 | 18 May 2024 | — | — |
| 21 | Kumiko Okada | 1:29:46 | 15 Mar 2015 | — | 23 |
| 22 | Kumi Otoshi | 1:29:48 | 18 Feb 2012 | — | — |
| 22= | Kumiko Okada | 1:29:48 | 7 Jun 2025 | — | 33 |
| 24 | Nanako Fujii | 1:29:54 | 19 Feb 2023 | — | — |
| 25 | Nanako Fujii | 1:29:55 | 17 Feb 2019 | — | — |
| 26 | Kumiko Okada | 1:29:56 | 16 Feb 2020 | — | 28 |
| 27 | Kumiko Okada | 1:30:03 | 20 Mar 2016 | — | 24 |
| 28 | Nanako Fujii | 1:30:10 | 20 Aug 2023 | — | — |
| 29 | Kumiko Okada | 1:30:12 | 20 Sep 2025 | — | 33 |
| 30 | Ryoko Sakakura | 1:30:16 | 28 Jan 2007 | — | — |
| 31 | Mayumi Kawasaki | 1:30:20 | 11 Aug 2012 | — | — |
| 32 | Mayumi Kawasaki | 1:30:25 | 20 Feb 2011 | — | — |
| 32= | Ayane Yanai | 1:30:25 | 16 Mar 2025 | — | — |
| 34 | Sachiko Konishi | 1:30:26 | 27 Jan 2008 | — | — |
| 35 | Masumi Fuchise | 1:30:27 | 10 Mar 2013 | — | — |
| 36 | Masumi Fuchise | 1:30:34 | 23 Nov 2010 | — | — |
| 37 | Kumi Otoshi | 1:30:36 | 14 Mar 2010 | — | — |
| 37= | Masumi Fuchise | 1:30:36 | 11 Mar 2012 | — | — |
| 39 | Mayumi Kawasaki | 1:30:37 | 31 Jan 2010 | — | — |
| 40 | Kumi Otoshi | 1:30:44 | 13 Mar 2011 | — | — |
| 41 | Kumi Otoshi | 1:30:45 | 17 Feb 2013 | — | — |
| 41= | Nanako Fujii | 1:30:45 | 21 Feb 2021 | — | — |
| 43 | Sachiko Konishi | 1:30:49 | 28 Oct 2007 | — | — |
| 43= | Masumi Fuchise | 1:30:49 | 15 Mar 2009 | — | — |
| 45 | Mayumi Kawasaki | 1:30:51 | 11 Mar 2012 | — | — |
| 46 | Kumi Otoshi | 1:30:58 | 3 Jan 2010 | — | — |
| 46= | Ayane Yanai | 1:30:58 | 19 Mar 2023 | — | — |
| 48 | Yukiko Umeno | 1:31:02 | 16 Feb 2025 | — | — |
| 49 | Kaori Kawazoe | 1:31:10 | 17 Feb 2019 | — | — |
| 50 | Masumi Fuchise | 1:31:11 | 18 Apr 2008 | — | — |
| 51 | Masumi Fuchise | 1:31:15 | 16 Aug 2009 | — | — |
| 52 | Sachiko Konishi | 1:31:17 | 28 Jan 2007 | — | — |
| 53 | Mayumi Kawasaki | 1:31:19 | 25 Jan 2004 | — | — |
| 53= | Kumiko Okada | 1:31:19 | 13 Aug 2017 | — | 25 |
| 55 | Kumiko Okada | 1:31:21 | 19 Feb 2023 | — | 31 |
| 56 | Chiaki Asada | 1:31:28 | 15 Mar 2015 | — | — |
| 57 | Kumiko Okada | 1:31:29 | 4 May 2018 | — | 26 |
| 58 | Mayumi Kawasaki | 1:31:34 | 20 Jun 2009 | — | — |
| 59 | Masumi Fuchise | 1:31:36 | 27 Jan 2008 | — | — |
| 60 | Mayumi Kawasaki | 1:31:39 | 16 Mar 2008 | — | — |
| 61 | Kumi Otoshi | 1:31:42 | 15 Mar 2009 | — | — |
| 61= | Masumi Fuchise | 1:31:42 | 9 Jul 2009 | — | — |
| 63 | Ryoko Sakakura | 1:31:43 | 5 Nov 2006 | — | — |
| 64 | Rei Inoue | 1:31:48 | 16 Feb 2014 | — | — |
| 65 | Mayumi Kawasaki | 1:31:51 | 30 Jan 2005 | — | — |
| 65= | Kumiko Okada | 1:31:51 | 21 Feb 2021 | — | 29 |
| 67 | Masumi Fuchise | 1:31:52 | 13 Mar 2011 | — | — |
| 68 | Kumiko Okada | 1:31:53 | 15 Jul 2022 | — | 30 |
| 69 | Nanako Fujii | 1:31:55 | 6 Aug 2021 | — | — |
| 70 | Kumi Otoshi | 1:31:57 | 1 May 2009 | — | — |
| 70= | Kumiko Okada | 1:31:57 | 15 Feb 2015 | — | 23 |
| 70= | Kumiko Okada | 1:31:57 | 6 Aug 2021 | — | 29 |
| 73 | Maiko Kawasaki | 1:32:06 | 29 Jan 2006 | — | — |
| 74 | Mayumi Kawasaki | 1:32:07 | 28 Jan 2007 | — | — |
| 75 | Serena Sonoda | 1:32:11 | 19 Mar 2023 | — | — |
| 76 | Chiaki Asada | 1:32:12 | 19 Mar 2017 | — | — |
| 76= | Serena Sonoda | 1:32:12 | 20 Mar 2022 | — | — |
| 78 | Maiko Kawasaki | 1:32:16 | 2 Nov 2003 | — | — |
| 78= | Ryoko Sakakura | 1:32:16 | 25 Jan 2004 | — | — |
| 80 | Kumi Otoshi | 1:32:17 | 25 Jan 2009 | — | — |
| 81 | Kumi Otoshi | 1:32:20 | 19 Jun 2010 | — | — |
| 82 | Sachiko Konishi | 1:32:21 | 30 Jan 2005 | — | — |
| 82= | Sachiko Konishi | 1:32:21 | 21 Aug 2008 | — | — |
| 82= | Yukiko Umeno | 1:32:21 | 27 Oct 2024 | — | — |
| 85 | Kumiko Okada | 1:32:22 | 17 Feb 2013 | — | 21 |
| 86 | Yuki Yoshizumi | 1:32:23 | 19 Mar 2017 | — | — |
| 86= | Masumi Fuchise | 1:32:23 | 17 Feb 2019 | — | — |
| 86= | Asada Chiaki | 1:32:23 | 17 Mar 2019 | — | — |
| 89 | Hiroi Maeda | 1:32:25 | 10 Mar 2013 | — | — |
| 90 | Masumi Fuchise | 1:32:28 | 20 Feb 2011 | — | — |
| 91 | Kumi Otoshi | 1:32:30 | 27 Jan 2008 | — | — |
| 91= | Ai Michiguchi | 1:32:30 | 21 Feb 2016 | — | — |
| 93 | Masumi Fuchise | 1:32:31 | 16 Feb 2014 | — | — |
| 94 | Ryoko Sakakura | 1:32:33 | 16 Apr 2006 | — | — |
| 95 | Ai Michiguchi | 1:32:34 | 25 Oct 2015 | — | — |
| 96 | Ryoko Sakakura | 1:32:36 | 17 Sep 2006 | — | — |
| 97 | Masumi Fuchise | 1:32:37 | 16 Mar 2008 | — | — |
| 98 | Kaori Nikaido | 1:32:40 | 25 Jan 2004 | — | — |
| 99 | Ai Michiguchi | 1:32:41 | 16 Feb 2014 | — | — |
| 99= | Rena Goto | 1:32:41 | 21 Feb 2016 | — | — |
| 101 | Kumiko Okada | 1:32:42 | 19 Aug 2016 | — | 24 |
| 102 | Ryoko Sakakura | 1:32:43 | 2 Nov 2003 | — | — |
| 102= | Masumi Fuchise | 1:32:43 | 19 Jun 2010 | — | — |
| 102= | Rei Inoue | 1:32:43 | 18 Feb 2012 | — | — |
| 102= | Ai Michiguchi | 1:32:43 | 7 May 2016 | — | — |
| 106 | Kaori Nikaido | 1:32:44 | 29 Oct 2000 | — | — |
| 106= | Kumi Otoshi | 1:32:44 | 13 Aug 2013 | — | — |
| 108 | Masumi Fuchise | 1:32:45 | 1 May 2009 | — | — |
| 109 | Kumi Otoshi | 1:32:46 | 31 Oct 2010 | — | — |
| 109= | Serena Sonoda | 1:32:46 | 3 Jun 2023 | — | — |
| 111 | Kaori Kawazoe | 1:32:48 | 17 Mar 2019 | — | — |
| 112 | Rena Goto | 1:32:50 | 19 Feb 2017 | — | — |
| 113 | Sachiko Konishi | 1:32:52 | 29 Jan 2006 | — | — |
| 113= | Ayane Yanai | 1:32:52 | 21 Apr 2024 | — | — |
| 115 | Mayumi Kawasaki | 1:32:53 | 18 Apr 2008 | — | — |
| 116 | Takako Terui | 1:32:54 | 27 Jan 2002 | — | — |
| 116= | Ai Michiguchi | 1:32:54 | 17 Feb 2019 | — | — |
| 118 | Rei Inoue | 1:32:55 | 3 May 2014 | — | — |
| 119 | Rei Inoue | 1:32:56 | 16 Mar 2014 | — | — |
| 120 | Ryoko Sakakura | 1:32:58 | 27 Jan 2008 | — | — |
| 121 | Rei Inoue | 1:33:04 | 15 Mar 2015 | — | — |
| 122 | Sachiko Konishi | 1:33:05 | 25 Mar 2007 | — | — |
| 122= | Kumi Otoshi | 1:33:05 | 16 Aug 2009 | — | — |
| 122= | Sumika Tani | 1:33:05 | 16 Mar 2025 | — | — |
| 125 | Yuka Mitsumori | 1:33:08 | 31 Jan 1999 | — | — |
| 126 | Kumi Otoshi | 1:33:09 | 13 May 2012 | — | — |
| 126= | Kaori Kawazoe | 1:33:09 | 19 Mar 2017 | — | — |
| 128 | Masumi Fuchise | 1:33:13 | 13 Aug 2013 | — | — |
| 129 | Hiroi Maeda | 1:33:14 | 17 Feb 2013 | — | — |
| 130 | Kaori Kawazoe | 1:33:15 | 16 Feb 2020 | — | — |
| 130= | Ayane Yanai | 1:33:15 | 27 May 2025 | — | — |
| 132 | Sae Matsumoto | 1:33:16 | 19 Feb 2017 | — | — |
| 132= | Nanako Fujii | 1:33:16 | 4 Mar 2022 | — | — |
| 134 | Ryoko Sakakura | 1:33:19 | 7 Dec 2006 | — | — |
| 135 | Nanako Fujii | 1:33:20 | 15 Mar 2020 | — | — |
| 136 | Kumiko Okada | 1:33:21 | 19 Mar 2017 | — | 25 |
| 137 | Kumiko Okada | 1:33:25 | 16 Mar 2014 | — | 22 |
| 138 | Nanako Fujii | 1:33:27 | 28 Oct 2018 | — | — |
| 139 | Kumiko Okada | 1:33:28 | 20 Feb 2022 | — | 30 |
| 140 | Kaori Nikaido | 1:33:29 | 28 Jan 2001 | — | — |
| 140= | Rena Goto | 1:33:29 | 7 May 2016 | — | — |
| 142 | Serena Sonoda | 1:33:33 | 24 Aug 2023 | — | — |
| 142= | Ayane Yanai | 1:33:33 | 16 Feb 2025 | — | — |
| 144 | Takako Terui | 1:33:34 | 14 Apr 2002 | — | — |
| 144= | Ryoko Sakakura | 1:33:34 | 28 Jan 2003 | — | — |
| 146 | Rie Mitsumori | 1:33:35 | 1 Nov 1998 | — | — |
| 146= | Mayumi Kawasaki | 1:33:35 | 31 Aug 2007 | — | — |
| 146= | Kaori Kawazoe | 1:33:35 | 19 Feb 2017 | — | — |
| 149 | Yukiko Umeno | 1:33:38 | 19 Mar 2023 | — | — |
| 150 | Sachiko Konishi | 1:33:40 | 5 Nov 2006 | — | — |
| 151 | Masumi Fuchise | 1:33:41 | 15 Mar 2020 | — | — |
| 151= | Miyu Naitho | 1:33:41 | 23 Oct 2022 | — | — |
| 153 | Ai Michiguchi | 1:33:42 | 4 May 2018 | — | — |
| 154 | Ryoko Sakakura | 1:33:43 | 31 Jan 1999 | — | — |
| 155 | Maiko Kawasaki | 1:33:45 | 20 Apr 2003 | — | — |
| 156 | Kumi Otoshi | 1:33:46 | 1 May 2013 | — | — |
| 156= | Ayane Yanai | 1:33:46 | 19 Feb 2023 | — | — |
| 158 | Kumi Otoshi | 1:33:49 | 10 Mar 2013 | — | — |
| 158= | Nanako Fujii | 1:33:49 | 29 Sep 2023 | — | — |
| 160 | Kumi Otoshi | 1:33:50 | 11 Aug 2012 | — | — |
| 161 | Kaori Kawazoe | 1:33:51 | 11 Apr 2021 | — | — |
| 162 | Hitomi Shimoka | 1:33:53 | 17 Mar 2024 | — | — |
| 163 | Masumi Fuchise | 1:33:59 | 16 Apr 2006 | — | — |
| 163= | Kumiko Okada | 1:33:59 | 16 Feb 2014 | — | 22 |
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.