KS
Kousei Shirosaki
JPNMenBirth dateAug 21, 2003
Height-
Weight-
Kousei Shirosaki is a Japan sprinter, born on August 21, 2003. He competes primarily in the 100m, 4x100m and 4x400m.
His personal bests include 10.26 in the 100m, 38.93 in the 4x100m, 3:10.70 in the 4x400m, 2.10 in the HJ and 7.25 in the LJ. He is currently active on the international athletics circuit, representing Japan.
Key facts
100 m
10.26
Triple Jump
16.20
Age
23 years old
As of Sep 24, 2026: 100 m 10.26, Triple Jump 16.20, 2026 season best 16.20 (Jun 12, 2026, Municipal Mizuho Stadium, Nagoya (JPN)) · Last competition: Japanese Championships, Jun 12, 2026, 16.20 · 23 years old
Performance Charts
Season bests
| Season | Discipline | Result | Wind | Date | Trend | Competitions |
|---|---|---|---|---|---|---|
| 2026 | TJ | 16.20 | -0.4 | Jun 12, 2026 | ↓ | Japanese Championships |
| 2025 | 100m | 10.40 | +1.3 | Jun 1, 2025 | ↑ | 2025 Fuse Sprint |
| 2025 | TJ | 16.02 | +2.0 | Mar 9, 2025 | ↓ | 29th Spring Record Meeting |
| 2025 | 4x100m | 38.93 | - | Jun 6, 2025 | - | 94th Japan Inter-University Athletics Championships |
| 2024 | LJ | 7.20 | -0.3 | Mar 15, 2024 | ↓ | 2024 Spring Challenge Meet, National Stadium, Tokyo |
| 2024 | 100m | 10.26 | +1.9 | Apr 7, 2024 | ↑ | 17th Iwakabe Cup, Athletic Park, Ageo |
| 2024 | TJ | 16.05 | - | Feb 4, 2024 | ↓ | Japanese Indoor Championships, Osaka Castle Hall, Osaka (i) |
| 2024 | 300m | 33.23 | - | Apr 7, 2024 | - | 17th Iwakabe Cup, Athletic Park, Ageo |
| 2023 | LJ | 7.19 | +0.0 | Sep 24, 2023 | ↓ | 34th Kanto University Rookies Athletics Championships, Gion Stadium, Sagamihara |
| 2023 | 100m | 10.53 | -0.8 | Aug 8, 2023 | ↑ | 16th Iwakabe Cup |
| 2023 | TJ | 16.01 | -0.1 | May 4, 2023 | ↓ | Fukuoka Athletics Championships, Hakatanomori Athletic Stadium, Fukuoka |
| 2023 | 4x400m | 3:10.70 | - | Aug 8, 2023 | - | 16th Iwakabe Cup |
| 2022 | LJ | 7.25 | +0.7 | Aug 11, 2022 | ↓ | Juntendo University Stadium, Inzai (JPN) |
| 2022 | 100m | 10.62 | +2.5 | Oct 16, 2022 | ↑ | Honjo Athletic Stadium, Kitakyushu (JPN) |
| 2022 | TJ | 15.32 | -0.5 | Aug 27, 2022 | ↓ | Prefectural Stadium, Fujiyoshida (JPN) |
| 2021 | HJ | 2.10 | - | Jun 19, 2021 | ↓ | Showa Denko Stadium, Oita (JPN) |
| 2021 | LJ | 6.79 | +0.9 | Apr 10, 2021 | ↓ | Municipal Sayagatani Stadium, Kitakyushu (JPN) |
| 2021 | 100m | 11.03 | -1.6 | Oct 10, 2021 | ↑ | Honjo Athletic Stadium, Kitakyushu (JPN) |
| 2021 | TJ | 15.56 | +1.3 | Jul 31, 2021 | ↓ | Prefectural Stadium, Fukui (JPN) |
| 2020 | HJ | 1.99 | - | Oct 24, 2020 | ↓ | Edion Stadium, Hiroshima (JPN) |
| 2020 | LJ | 6.37 | +0.3 | Nov 15, 2020 | ↓ | Municipal Sayagatani Stadium, Kitakyushu (JPN) |
| 2020 | 100m | 11.32 | +0.5 | Nov 15, 2020 | ↑ | Municipal Sayagatani Stadium, Kitakyushu (JPN) |
| 2019 | HJ | 2.05 | - | Aug 8, 2019 | ↓ | Okinawa (JPN) |
2026
1 performance| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
TJ | 16.20 | -0.4 | Jun 12 | Japanese Championships |
2025
13 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
4x100m | 38.97 | - | Aug 20 | The 20th Twilight Games, International Stadium, Yokohama |
100m | 10.45 | +0.8 | Jul 4 | Japanese Championships, National Stadium, Tokyo |
TJ | 15.85 | +0.4 | Jun 7 | 94th Japan Inter-University Athletics Championships |
TJ | 15.85 | +0.4 | Jun 6 | 94th Japan Inter-University Athletics Championships |
4x100m | 38.93 | - | Jun 6 | 94th Japan Inter-University Athletics Championships |
4x100m | 39.10 | - | Jun 5 | 94th Japan Inter-University Athletics Championships |
100m | 10.49 | -0.8 | Jun 1 | 2025 Fuse Sprint |
100m | 10.40 | +1.3 | Jun 1 | 2025 Fuse Sprint |
TJ | 15.53 | -0.6 | May 10 | The 104th Kanto Inter-University Track＆Field Championships, Gion Stadium, Sagamihara |
TJ | 15.58 | +2.7 | Apr 27 | All Japan University Track & Field Challenge, Tokai University Stadium, Hiratsuka |
TJ | 15.58 | +2.7 | Apr 26 | All Japan University Track & Field Challenge, Tokai University Stadium, Hiratsuka |
TJ | 16.02 | +2.0 | Mar 9 | 29th Spring Record Meeting |
TJ | 16.02 | +2.0 | Mar 8 | 29th Spring Record Meeting |
2024
19 performances2023
11 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
TJ | 15.07 | +2.0 | Oct 13 | National Sports Festival |
TJ | 15.15 | +2.4 | Oct 13 | National Sports Festival |
LJ | 7.19 | +0.0 | Sep 24 | 34th Kanto University Rookies Athletics Championships, Gion Stadium, Sagamihara |
TJ | 15.03 | +0.3 | Sep 16 | 92nd Japan Inter-University Athletics Championships, Prefectural Stadium, Kumagaya |
100m | 10.53 | -0.8 | Aug 8 | 16th Iwakabe Cup |
4x400m | 3:10.70 | - | Aug 8 | 16th Iwakabe Cup |
TJ | 15.93 | +1.6 | Aug 6 | Fuji Hokuroku World Trials 2023 |
TJ | 14.83 | +0.8 | Jul 29 | 20th Tajima Naoto Memorial, Ishin Me-Life Stadium, Yamaguchi |
TJ | 16.01 | -0.1 | May 4 | Fukuoka Athletics Championships, Hakatanomori Athletic Stadium, Fukuoka |
TJ | 15.79 | +0.9 | Apr 23 | 86th Tokyo Athletics Open Championships |
TJ | 15.79 | +0.9 | Apr 22 | 86th Tokyo Athletics Open Championships |
2022
6 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
100m | 10.62 | +2.5 | Oct 16 | 44th Kitakyushu Carnival, Honjo Athletic Stadium, Kitakyushu |
100m | 10.80 | -0.8 | Oct 16 | 44th Kitakyushu Carnival, Honjo Athletic Stadium, Kitakyushu |
LJ | 7.18 | +0.0 | Oct 16 | 44th Kitakyushu Carnival, Honjo Athletic Stadium, Kitakyushu |
TJ | 14.79 | -0.5 | Sep 11 | 91st Japan Inter-University Athletics Championships, Takebishi Stadium, Kyoto |
TJ | 15.32 | -0.5 | Aug 27 | Fuji Hokuroku World Trials, Prefectural Stadium, Fujiyoshida |
LJ | 7.25 | +0.7 | Aug 11 | 8th Juntendo University Competition, Juntendo University Stadium, Inzai |
Showing 1 - 50 of 73
Honours
No medals
FAQ
Frequently asked questions
What is Kousei Shirosaki's 100 m personal best?
Kousei Shirosaki's 100 m personal best is 10.26, set on Apr 7, 2024 in Athletic Park, Ageo (JPN).
Which events does Kousei Shirosaki compete in?
Kousei Shirosaki competes in the 100 m and Triple Jump.
How did Kousei Shirosaki perform in 2026?
2026 season best: 16.20, set on Jun 12, 2026 in Municipal Mizuho Stadium, Nagoya (JPN). Last competition: Japanese Championships on Jun 12, 2026, 16.20.