| Japonia - NPB Reserve League | 2022/09/15 09:00 | Yokohama Bay Stars - Rezerwa v Seibu Lions - Rezerwa | L | 2-4 |
| Japonia - NPB Reserve League | 2021/08/19 04:00 | Yokohama Bay Stars - Rezerwa v Seibu Lions - Rezerwa | L | 8-9 |
| Japonia - NPB Reserve League | 2021/08/18 04:00 | Yokohama Bay Stars - Rezerwa v Seibu Lions - Rezerwa | W | 13-1 |
| Japonia - NPB Reserve League | 2021/08/17 04:00 | Yokohama Bay Stars - Rezerwa v Seibu Lions - Rezerwa | L | 0-2 |
| Japonia - NPB Reserve League | 2021/07/29 04:00 | Yokohama Bay Stars - Rezerwa v Seibu Lions - Rezerwa | L | 6-10 |
| Japonia - NPB Reserve League | 2021/07/28 04:00 | Yokohama Bay Stars - Rezerwa v Seibu Lions - Rezerwa | W | 8-2 |
| Japonia - NPB Reserve League | 2021/03/26 03:54 | Yokohama Bay Stars - Rezerwa v Seibu Lions - Rezerwa | L | 6-8 |
| Japonia - NPB Reserve League | 2020/09/29 09:00 | Seibu Lions - Rezerwa v Yokohama Bay Stars - Rezerwa | D | 0-0 |
| Japonia - NPB Reserve League | 2023/05/11 04:00 | Yokohama Bay Stars - Rezerwa v Nipponham Fighters - Rezerwa | W | 3-0 |
| Japonia - NPB Reserve League | 2023/05/10 04:00 | Yokohama Bay Stars - Rezerwa v Nipponham Fighters - Rezerwa | L | 3-4 |
| Japonia - NPB Reserve League | 2023/05/09 04:00 | Yokohama Bay Stars - Rezerwa v Nipponham Fighters - Rezerwa | W | 1-0 |
| Japonia - NPB Reserve League | 2023/04/25 04:00 | Yokohama Bay Stars - Rezerwa v Yomiuri Giants - Rezerwa | L | 0-6 |
| Japonia - NPB Reserve League | 2023/04/20 04:00 | Yokohama Bay Stars - Rezerwa v Nipponham Fighters - Rezerwa | L | 0-9 |
| Japonia - NPB Reserve League | 2023/04/19 04:00 | Yokohama Bay Stars - Rezerwa v Nipponham Fighters - Rezerwa | W | 7-3 |
| Japonia - NPB Reserve League | 2023/04/18 04:00 | Yokohama Bay Stars - Rezerwa v Nipponham Fighters - Rezerwa | L | 2-5 |
| Japonia - NPB Reserve League | 2022/10/27 03:30 | SoftBank Hawks - Rezerwa v Yokohama Bay Stars - Rezerwa | L | 6-2 |
| Japonia - NPB Reserve League | 2023/05/17 04:00 | Yakult Swallows - Rezerwa v Seibu Lions - Rezerwa | L | 9-7 |
| Japonia - NPB Reserve League | 2023/05/16 04:00 | Yakult Swallows - Rezerwa v Seibu Lions - Rezerwa | W | 7-10 |
| Japonia - NPB Reserve League | 2023/05/12 04:00 | Yomiuri Giants - Rezerwa v Seibu Lions - Rezerwa | W | 3-4 |
| Japonia - NPB Reserve League | 2023/05/02 04:00 | Nipponham Fighters - Rezerwa v Seibu Lions - Rezerwa | L | 11-3 |
| Japonia - NPB Reserve League | 2023/04/23 04:00 | Yakult Swallows - Rezerwa v Seibu Lions - Rezerwa | W | 4-9 |
| Japonia - NPB Reserve League | 2023/04/22 04:00 | Yakult Swallows - Rezerwa v Seibu Lions - Rezerwa | W | 2-8 |
| Japonia - NPB Reserve League | 2023/04/21 04:00 | Yakult Swallows - Rezerwa v Seibu Lions - Rezerwa | W | 2-7 |
| Japonia - NPB Reserve League | 2023/04/12 04:00 | Rakuten Eagles - Rezerwa v Seibu Lions - Rezerwa | L | 4-2 |