| Toshikazu Yamanishi JPN |
| Date of birth: 15 February 96 |
| Age: 24 years 318 days |
| Height: 164 cm |
| Weight: 51 kg |
| Club/team: 京都大 |
| Name in Japanese: 山西 利和 |
| 20km Race Walk World Champion 2019 |
| 10,000m Race Walk World Youth Champion 2013 |
| 20km Race Walk Asian Games Silver Medallist 2018 |
| 20km Race Walk Asian Champion 2019 |
| 20km Race Walk World University Games Champion 2017 |
| 1 National Title |
| 20km Race Walk World Alltime no. 4 1:17:15 Nomi 17 Mar 2019 |
| 10,000m Race Walk World Alltime no. 81 39:24.49 Osaka 13 May 2017 |
| 10km Race Walk World Alltime no. 431 41:14 Kobe 17 Feb 2013 |
| 5000m Race Walk World Alltime no. 13 18:34.88 Kumagaya 19 Sep 2020 |
Personal bests in BOLD.
| 5000m Race Walk | |||||||
| Outdoor Alltime Show/hide | |||||||
| 2015 19:40.48 | 1 | Tokyo | 10 Oct | ||||
| 2016 19:52.17 | 1 | Tokyo | 30 Jul | ||||
| 2020 18:34.88 AR | 1 | Kumagaya | 19 Sep | ||||
| 10,000m Race Walk | |||||||
| Outdoor Alltime Show/hide | |||||||
| 2013 41:53.80 | 1-17 | Donetsk | 13 Jul | ||||
| 2014 40:40.96 | 7 | Isahaya | 21 Oct | ||||
| 2015 39:28.63 | 2 | Osaka | 13 Sep | ||||
| 2016 39:55.80 | 4 | Kitakami | 9 Oct | ||||
| 2017 39:24.49 | 1 | Osaka | 13 May | ||||
| 2018 39:27.04 | 3 | Osaka | 22 Sep | ||||
| 10km Race Walk | |||||||
| Outdoor Alltime Show/hide | |||||||
| 2013 41:14 | 1-19 | Kobe | 17 Feb | ||||
| 20km Race Walk | |||||||
| Outdoor Alltime Show/hide | |||||||
| 2015 1:21:20 | 8 | Nomi | 15 Mar | ||||
| 2016 1:20:50 | 7 | La Coruña | 28 May | ||||
| 2017 1:19:03 | 3 | Kobe | 19 Feb | ||||
| 2018 1:17:41 | 2 | Kobe | 18 Feb | ||||
| 2019 1:17:15 | 1 | Nomi | 17 Mar | ||||
| 2020 1:17:36 | 1 | Kobe | 16 Feb | ||||
| Outdoor | |||
| 10,000m Race Walk | |||
| WY | 2013: | 1-17 | 41:53.80 |
| 20km Race Walk | |||
| WUG | 2017: | 1 | 1:27:30 |
| AsianG | 2018: | 2 | 1:22:10 |
| WTC | 2018: | 4 | 1:21:53 |
| AsC | 2019: | 1 | 1:17:15 |
| WC | 2019: | 1 | 1:26:34 |
note:click on indoor/outdoor to see PB progression.
| 5000m Race Walk | ||||||||
| Winstreak: 3 (finals) Show/hide | ||||||||
| Outdoor | 18:34.88 AR | Kumagaya | 19 Sep 2020 | |||||
| 10,000m Race Walk | ||||||||
| Outdoor | 39:24.49 | Osaka | 13 May 2017 | |||||
| 10km Race Walk | ||||||||
| Winstreak: 1 (finals) Show/hide | ||||||||
| Outdoor | 41:14 | Kobe | 17 Feb 2013 | |||||
| 20km Race Walk | ||||||||
| Winstreak: 4 (finals) Show/hide | ||||||||
| races under 1:20:00: 6 | ||||||||
| Outdoor | 1:17:15 | Nomi | 17 Mar 2019 | |||||
| 10,000m Race Walk, 10 best results (legal): | |||||||
| 39:24.49 | 1 | Osaka | 13 May 2017 | ||||
| 39:27.04 | 3 | Osaka | 22 Sep 2018 | ||||
| 39:28.63 | 2 | Osaka | 13 Sep 2015 | ||||
| 39:55.80 | 4 | Kitakami | 9 Oct 2016 | ||||
| 40:22.28 | 1 | Fukui | 9 Sep 2017 | ||||
| 40:28.82 | 2 | Wakayama | 4 Oct 2015 | ||||
| 40:38.01 | 1 | Kumagaya | 4 Sep 2016 | ||||
| 40:40.96 | 7 | Isahaya | 21 Oct 2014 | ||||
| 40:54.49 | 1 | Osaka | 15 May 2016 | ||||
| 40:58.20 | 3 | Matsuyama | 8 Oct 2017 | ||||
| Average: 40:13.872 | |||||||
| 20km Race Walk, 10 best results (legal): | |||||||
| 1:17:15 | 1 | Nomi | 17 Mar 2019 | ||||
| 1:17:36 | 1 | Kobe | 16 Feb 2020 | ||||
| 1:17:41 | 2 | Kobe | 18 Feb 2018 | ||||
| 1:17:41 | 1 | La Coruña | 8 Jun 2019 | ||||
| 1:18:10 | 3 | Kobe | 17 Feb 2019 | ||||
| 1:19:03 | 3 | Kobe | 19 Feb 2017 | ||||
| 1:20:50 | 7 | La Coruña | 28 May 2016 | ||||
| 1:21:20 | 8 | Nomi | 15 Mar 2015 | ||||
| 1:21:23 | 8 | Nomi | 19 Mar 2017 | ||||
| 1:21:53 | 4 | Taicang | 6 May 2018 | ||||
| Average: 1:19:17.2 | |||||||
| 5000m Race Walk: | 3 |
| 10,000m Race Walk: | 15 |
| 10km Race Walk: | 1 |
| 20km Race Walk: | 17 |
position in the world list in brackets following the season's best,
junior list position in green and youth list position in orange.
help: click on competition name or Venue to see competition results.
help: click on placing to see event results in the competition.
| Season | Ind/Out | Event | Pos | Result |
| 2013 | Outdoor | 10,000m Race Walk | 80 | 41:53.80 |
| 2013 | Outdoor | 10km Race Walk | 30 | 41:14 |
| 2014 | Outdoor | 10,000m Race Walk | 33 | 40:40.96 |
| 2015 | Outdoor | 5000m Race Walk | 26 | 19:40.48 |
| 2015 | Outdoor | 10,000m Race Walk | 10 | 39:28.63 |
| 2015 | Outdoor | 20km Race Walk | 35 | 1:21:20 |
| 2016 | Outdoor | 5000m Race Walk | 44 | 19:52.17 |
| 2016 | Outdoor | 10,000m Race Walk | 15 | 39:55.80 |
| 2016 | Outdoor | 20km Race Walk | 43 | 1:20:50 |
| 2017 | Outdoor | 10,000m Race Walk | 4 | 39:24.49 |
| 2017 | Outdoor | 20km Race Walk | 8 | 1:19:03 |
| 2018 | Outdoor | 10,000m Race Walk | 8 | 39:27.04 |
| 2018 | Outdoor | 20km Race Walk | 3 | 1:17:41 |
| 2019 | Outdoor | 20km Race Walk | 1 | 1:17:15 |
| 2020 | Outdoor | 5000m Race Walk | 4 | 18:34.88 |
| 2020 | Outdoor | 20km Race Walk | 1 | 1:17:36 |