All available race results Shotaro Watanabe
| Date | Race | Rank |
| Tour de Langkawi | ||
| 22/02 | Stage 1 | 44 |
| 23/02 | Stage 2 | 71 |
| 24/02 | Stage 3 | 35 |
| 25/02 | Stage 4 | 77 |
| 26/02 | Stage 5 | 28 |
| 27/02 | Stage 6 | 24 |
| Tour de Taiwan | ||
| 26/03 | Stage 1 | 43 |
| Tour of Thailand | ||
| 01/04 | Stage 1 | 91 |
| 02/04 | Stage 2 | 102 |
| 03/04 | Stage 3 | 15 |
| 04/04 | Stage 4 | 17 |
| 05/04 | Stage 5 | 10 |
| 06/04 | Stage 6 | 15 |
| General Classification | 29 | |
| Tour of Japan | ||
| 21/05 | Prologue | 24 |
| 22/05 | Stage 2 | 46 |
| 23/05 | Stage 3 | 54 |
| 24/05 | Stage 4 | 16 |
| 25/05 | Stage 5 | 62 |
| 26/05 | Stage 6 | 48 |
| 27/05 | Stage 7 | 58 |
| 28/05 | Stage 8 | 23 |
| General Classification | 46 |
Rider information for 2017
| Rank | 4818 |
| Score | 0 |
| Name | Shotaro WATANABE |
| Country | Japan |
| Team | Aisan Racing Team |
| Date | Race | Rank |
| Tour of Thailand | ||
| 01/04 | Stage 1 | 20 |
| 02/04 | Stage 2 | 17 |
| 03/04 | Stage 3 | 46 |
| 04/04 | Stage 4 | 11 |
| 05/04 | Stage 5 | 32 |
| 06/04 | Stage 6 | 84 |
| General Classification | 44 | |
| Tour of Japan | ||
| 20/05 | Prologue | 49 |
| 21/05 | Stage 2 | 74 |
| 22/05 | Stage 3 | 84 |
| 23/05 | Stage 4 | 47 |
| 24/05 | Stage 5 | 50 |
| 25/05 | Stage 6 | 76 |
Rider information for 2018
| Rank | 4726 |
| Score | 0 |
| Name | Shotaro WATANABE |
| Country | Japan |
| Team | Aisan Racing Team |
| Date | Race | Rank |
| New Zealand Cycle Classic | ||
| 23/01 | Stage 1 | 49 |
| Tour of Japan | ||
| 19/05 | Prologue | 24 |
| 20/05 | Stage 2 | 66 |
| 21/05 | Stage 3 | 72 |
| 22/05 | Stage 4 | 19 |
| 23/05 | Stage 5 | 75 |
| 24/05 | Stage 6 | 76 |
| 25/05 | Stage 7 | 73 |
| 26/05 | Stage 8 | 66 |
| General Classification | 69 |
Rider information for 2019
| Rank | 1996 |
| Score | 8 |
| Name | Shotaro WATANABE |
| Country | Japan |
| Team | Aisan Racing Team |
No results available in season 2020.
Rider information for 2020
| Rank | 3668 |
| Score | 0 |
| Name | Shotaro WATANABE |
| Country | Japan |
| Team | Nasu Blasen |
| Date | Race | Rank |
| Tour of Japan | ||
| 28/05 | Stage 1 | 62 |
| 29/05 | Stage 2 | 60 |
| 30/05 | Stage 3 | 14 |
| General Classification | 61 |
Rider information for 2021
| Rank | 4158 |
| Score | 0 |
| Name | Shotaro WATANABE |
| Country | Japan |
| Team | Nasu Blasen |
No results available in season 2022.
Rider information for 2022
| Rank | 3719 |
| Score | 2 |
| Name | Shotaro WATANABE |
| Country | Japan |
| Team | Aisan Racing Team |
| Date | Race | Rank |
| Tour de Taiwan | ||
| 12/03 | Stage 1 | 62 |
| 13/03 | Stage 2 | 34 |
| 14/03 | Stage 3 | 65 |
| 15/03 | Stage 4 | 39 |
| 16/03 | Stage 5 | 78 |
| General Classification | 56 | |
| Tour de Kyushu | ||
| 07/10 | Stage 1 | 31 |
| 08/10 | Stage 2 | 77 |
| 09/10 | Stage 3 | 46 |
| General Classification | 49 |
Rider information for 2023
| Rank | 6458 |
| Score | 0 |
| Name | Shotaro WATANABE |
| Country | Japan |
| Team | Aisan Racing Team |
| Date | Race | Rank |
| Tour of Sharjah | ||
| 26/01 | Stage 1 | 107 |
| 27/01 | Stage 2 | 141 |
| 28/01 | Stage 3 | 36 |
| 30/01 | Stage 4 | 26 |
| 31/01 | Stage 5 | 115 |
| General Classification | 96 |
Rider information for 2024
| Rank | 4774 |
| Score | 0 |
| Name | Shotaro WATANABE |
| Country | Japan |
| Team | Aisan Racing Team |