All available race results Koki Shirakawa
| Date | Race | Rank |
| Tour de Kumano | ||
| 31/05 | Prologue | 73 |
| 14/10 | Oita Urban Classic Road Race | 23 |
Rider information for 2018
| Rank | 6050 |
| Score | 0 |
| Name | Koki SHIRAKAWA |
| Country | Japan |
| Team | Elite without contract |
No results available in season 2020.
Rider information for 2020
| Rank | 3953 |
| 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 | 5592 |
| Score | 0 |
| Name | Koki SHIRAKAWA |
| Country | Japan |
| Team | Elite without contract |
| Date | Race | Rank |
| Tour de Kumano | ||
| 27/05 | Stage 1 | 21 |
| 28/05 | Stage 2 | 35 |
| 29/05 | Stage 3 | 34 |
| General Classification | 31 | |
| 26/06 | National Championship Japan | 14 |
Rider information for 2022
| Rank | 6681 |
| Score | 0 |
| Name | Koki SHIRAKAWA |
| Country | Japan |
| Team | Elite without contract |
No results available in season 2023.
Rider information for 2023
| Rank | 6197 |
| 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 | 4466 |
| Score | 0 |
| Name | Koki SHIRAKAWA |
| Country | Japan |
| Team | Kinan Racing Team |
| Date | Race | Rank |
| Tour de Kumano | ||
| 08/05 | Stage 1 | 77 |
| 09/05 | Stage 2 | 61 |
| 10/05 | Stage 3 | 68 |
| 11/05 | Stage 4 | 46 |
| General Classification | 50 | |
| Tour of Japan | ||
| 18/05 | Prologue | 91 |
| 19/05 | Stage 1 | 66 |
| 20/05 | Stage 2 | 76 |
| 21/05 | Stage 3 | 71 |
| 22/05 | Stage 4 | 64 |
| 23/05 | Stage 5 | 81 |
| 24/05 | Stage 6 | 82 |
| 25/05 | Stage 7 | 75 |
| General Classification | 78 |
Rider information for 2025
| Rank | 3664 |
| Score | 0 |
| Name | Koki SHIRAKAWA |
| Country | Japan |
| Team | Victoire Hiroshima |