All available race results Koki Shirakawa
| Date | Race | Rank |
| 14/10 | Oita Urban Classic Road Race | 23 |
Rider information for 2018
| Rank | 6005 |
| Score | 0 |
| Name | Koki SHIRAKAWA |
| Country | Japan |
| Team | Elite without contract |
No results available in season 2020.
Rider information for 2020
| Rank | 3922 |
| Score | 0 |
| Name | Koki SHIRAKAWA |
| Country | Japan |
| Team | Victoire Hiroshima |
| Date | Race | Rank |
| 10/10 | Oita Urban Classic Road Race | 17 |
| 24/10 | National Championship Japan | 27 |
Rider information for 2021
| Rank | 5532 |
| Score | 0 |
| Name | Koki SHIRAKAWA |
| Country | Japan |
| Team | Elite without contract |
| Date | Race | Rank |
| 26/06 | National Championship Japan | 14 |
Rider information for 2022
| Rank | 6620 |
| Score | 0 |
| Name | Koki SHIRAKAWA |
| Country | Japan |
| Team | Elite without contract |
No results available in season 2023.
Rider information for 2023
| Rank | 6133 |
| Score | 0 |
| Name | Koki SHIRAKAWA |
| Country | Japan |
| Team | Kinan Racing Team |
| Date | Race | Rank |
| Tour of Antalya | ||
| 08/02 | Stage 1 | 46 |
| 09/02 | Stage 2 | 119 |
| 10/02 | Stage 3 | 134 |
| 11/02 | Stage 4 | 139 |
| General Classification | 124 |
Rider information for 2024
| Rank | 4083 |
| Score | 0 |
| Name | Koki SHIRAKAWA |
| Country | Japan |
| Team | Kinan Racing Team |