All available race results Tadaaki Nakai
| Date | Race | Rank |
| Tour of Japan | ||
| 19/05 | Prologue | 41 |
| 20/05 | Stage 2 | 79 |
| 21/05 | Stage 3 | 71 |
| 22/05 | Stage 4 | 85 |
| 23/05 | Stage 5 | 76 |
| 24/05 | Stage 6 | 66 |
| 25/05 | Stage 7 | 69 |
| 26/05 | Stage 8 | 72 |
| General Classification | 70 |
Rider information for 2019
| Rank | 2279 |
| Score | 7 |
| Name | Tadaaki NAKAI |
| Country | Japan |
| Team | Shimano Racing Team |
No results available in season 2020.
Rider information for 2020
| Rank | 3780 |
| Score | 0 |
| Name | Tadaaki NAKAI |
| Country | Japan |
| Team | Shimano Racing Team |
No results available in season 2021.
Rider information for 2021
| Rank | 4570 |
| Score | 0 |
| Name | Tadaaki NAKAI |
| Country | Japan |
| Team | Shimano Racing Team |
| Date | Race | Rank |
| Tour of Japan | ||
| 19/05 | Stage 1 | 44 |
| 20/05 | Stage 2 | 44 |
| 21/05 | Stage 3 | 30 |
| 22/05 | Stage 4 | 68 |
| General Classification | 40 | |
| Tour de Taiwan | ||
| 02/10 | Stage 1 | 9 |
| 03/10 | Stage 2 | 17 |
| 04/10 | Stage 3 | 7 |
| 05/10 | Stage 4 | 21 |
| 06/10 | Stage 5 | 20 |
| General Classification | 10 | |
| 16/10 | Japan Cup | 36 |
Rider information for 2022
| Rank | 2504 |
| Score | 5 |
| Name | Tadaaki NAKAI |
| Country | Japan |
| Team | Shimano Racing |
| Date | Race | Rank |
| Tour of Japan | ||
| 21/05 | Prologue | 69 |
| 22/05 | Stage 1 | 65 |
| 23/05 | Stage 2 | 72 |
| 24/05 | Stage 3 | 84 |
| 25/05 | Stage 4 | 73 |
| 26/05 | Stage 5 | 51 |
| 27/05 | Stage 6 | 32 |
| 28/05 | Stage 7 | 9 |
| General Classification | 68 | |
| Tour de Kyushu | ||
| 07/10 | Stage 1 | 23 |
| 08/10 | Stage 2 | 35 |
| 09/10 | Stage 3 | 25 |
| General Classification | 23 |
Rider information for 2023
| Rank | 3334 |
| Score | 4 |
| Name | Tadaaki NAKAI |
| Country | Japan |
| Team | Shimano Racing |
| Date | Race | Rank |
| Tour of Japan | ||
| 19/05 | Prologue | 15 |
| 20/05 | Stage 1 | 36 |
| 21/05 | Stage 2 | 27 |
| 22/05 | Stage 3 | 66 |
| 23/05 | Stage 4 | 71 |
| 24/05 | Stage 5 | 77 |
| 25/05 | Stage 6 | 67 |
| 26/05 | Stage 7 | 77 |
| General Classification | 57 |
Rider information for 2024
| Rank | 3901 |
| Score | 0 |
| Name | Tadaaki NAKAI |
| Country | Japan |
| Team | Shimano Racing |