| Japonia - NPB Reserve League | 2021/08/26 04:00 | Yakult Swallows - Rezerwa v Seibu Lions - Rezerwa | L | 3-8 |
| Japonia - NPB Reserve League | 2021/08/25 04:00 | Yakult Swallows - Rezerwa v Seibu Lions - Rezerwa | W | 4-0 |
| Japonia - NPB Reserve League | 2021/08/24 04:00 | Yakult Swallows - Rezerwa v Seibu Lions - Rezerwa | W | 13-1 |
| Japonia - NPB Reserve League | 2021/07/22 04:00 | Yakult Swallows - Rezerwa v Seibu Lions - Rezerwa | L | 2-3 |
| Japonia - NPB Reserve League | 2021/07/20 08:45 | Yakult Swallows - Rezerwa v Seibu Lions - Rezerwa | W | 4-3 |
| Japonia - NPB Reserve League | 2020/10/25 03:30 | Yakult Swallows - Rezerwa v Seibu Lions - Rezerwa | L | 3-4 |
| Japonia - NPB Reserve League | 2020/10/24 03:30 | Yakult Swallows - Rezerwa v Seibu Lions - Rezerwa | L | 0-5 |
| Japonia - NPB Reserve League | 2020/10/23 03:30 | Yakult Swallows - Rezerwa v Seibu Lions - Rezerwa | D | 0-0 |
| Japonia - NPB Reserve League | 2022/04/08 04:00 | Yakult Swallows - Rezerwa v Nipponham Fighters - Rezerwa | L | 2-3 |
| Japonia - NPB Reserve League | 2021/11/01 03:00 | SoftBank Hawks - Rezerwa v Yakult Swallows - Rezerwa | L | 4-3 |
| Japonia - NPB Reserve League | 2021/10/30 03:30 | Hanshin Tigers - Rezerwa v Yakult Swallows - Rezerwa | L | 6-1 |
| Japonia - NPB Reserve League | 2021/09/22 04:00 | Yakult Swallows - Rezerwa v Nipponham Fighters - Rezerwa | W | 13-3 |
| Japonia - NPB Reserve League | 2021/09/20 04:00 | Yakult Swallows - Rezerwa v Yomiuri Giants - Rezerwa | W | 14-4 |
| Japonia - NPB Reserve League | 2021/09/19 04:00 | Yakult Swallows - Rezerwa v Yomiuri Giants - Rezerwa | L | 3-4 |
| Japonia - NPB Reserve League | 2021/08/26 04:00 | Yakult Swallows - Rezerwa v Seibu Lions - Rezerwa | L | 3-8 |
| Japonia - NPB Reserve League | 2021/08/25 04:00 | Yakult Swallows - Rezerwa v Seibu Lions - Rezerwa | W | 4-0 |
| Japonia - NPB Reserve League | 2022/04/08 04:00 | Seibu Lions - Rezerwa v Yomiuri Giants - Rezerwa | L | 5-9 |
| Japonia - NPB Reserve League | 2022/04/07 04:00 | Nipponham Fighters - Rezerwa v Seibu Lions - Rezerwa | W | 0-7 |
| Japonia - NPB Reserve League | 2022/03/23 04:00 | Chiba Lotte Marines - Rezerwa v Seibu Lions - Rezerwa | W | 2-3 |
| Japonia - NPB Reserve League | 2021/11/01 02:00 | Hiroshima Carp - Rezerwa v Seibu Lions - Rezerwa | L | 4-2 |
| Japonia - NPB Reserve League | 2021/10/28 03:26 | Hanshin Tigers - Rezerwa v Seibu Lions - Rezerwa | L | 9-1 |
| Japonia - NPB Reserve League | 2021/10/27 03:30 | Yomiuri Giants - Rezerwa v Seibu Lions - Rezerwa | L | 4-1 |
| Japonia - NPB Reserve League | 2021/10/03 04:00 | Yomiuri Giants - Rezerwa v Seibu Lions - Rezerwa | L | 5-1 |
| Japonia - NPB Reserve League | 2021/09/20 04:00 | Chiba Lotte Marines - Rezerwa v Seibu Lions - Rezerwa | D | 0-0 |