| Japonia - NPB Reserve League | 2020/10/06 03:30 | Nipponham Fighters - Rezerwa v Seibu Lions - Rezerwa | W | 11-2 |
| Japonia - NPB Reserve League | 2020/09/02 03:56 | Nipponham Fighters - Rezerwa v Seibu Lions - Rezerwa | W | 6-5 |
| Japonia - NPB Reserve League | 2020/09/01 04:00 | Nipponham Fighters - Rezerwa v Seibu Lions - Rezerwa | W | 6-4 |
| Japonia - NPB Reserve League | 2020/07/28 04:00 | Nipponham Fighters - Rezerwa v Seibu Lions - Rezerwa | L | 5-8 |
| Japonia - NPB Reserve League | 2020/06/30 04:00 | Seibu Lions - Rezerwa v Nipponham Fighters - Rezerwa | L | 6-1 |
| Japonia - NPB Reserve League | 2019/07/03 04:00 | Seibu Lions - Rezerwa v Nipponham Fighters - Rezerwa | L | 2-1 |
| Japonia - NPB Reserve League | 2019/06/12 04:00 | Seibu Lions - Rezerwa v Nipponham Fighters - Rezerwa | W | 1-5 |
| Japonia - NPB Reserve League | 2019/05/24 04:00 | Nipponham Fighters - Rezerwa v Seibu Lions - Rezerwa | L | 1-4 |
| Japonia - NPB Reserve League | 2020/10/06 03:30 | Nipponham Fighters - Rezerwa v Seibu Lions - Rezerwa | W | 11-2 |
| Japonia - NPB Reserve League | 2020/10/01 03:30 | Chiba Lotte Marines - Rezerwa v Nipponham Fighters - Rezerwa | W | 0-13 |
| Japonia - NPB Reserve League | 2020/09/30 03:30 | Chiba Lotte Marines - Rezerwa v Nipponham Fighters - Rezerwa | D | 3-3 |
| Japonia - NPB Reserve League | 2020/09/10 04:00 | Nipponham Fighters - Rezerwa v Yomiuri Giants - Rezerwa | L | 5-6 |
| Japonia - NPB Reserve League | 2020/09/09 04:00 | Nipponham Fighters - Rezerwa v Yomiuri Giants - Rezerwa | L | 4-11 |
| Japonia - NPB Reserve League | 2020/09/08 04:00 | Nipponham Fighters - Rezerwa v Yomiuri Giants - Rezerwa | W | 4-3 |
| Japonia - NPB Reserve League | 2020/09/04 04:07 | Rakuten Eagles - Rezerwa v Nipponham Fighters - Rezerwa | W | 1-5 |
| Japonia - NPB Reserve League | 2020/09/02 03:56 | Nipponham Fighters - Rezerwa v Seibu Lions - Rezerwa | W | 6-5 |
| Japonia - NPB Reserve League | 2020/10/06 03:30 | Nipponham Fighters - Rezerwa v Seibu Lions - Rezerwa | L | 11-2 |
| Japonia - NPB Reserve League | 2020/10/04 03:30 | Yomiuri Giants - Rezerwa v Seibu Lions - Rezerwa | D | 0-0 |
| Japonia - NPB Reserve League | 2020/10/02 04:00 | Yomiuri Giants - Rezerwa v Seibu Lions - Rezerwa | L | 6-4 |
| Japonia - NPB Reserve League | 2020/09/29 09:00 | Seibu Lions - Rezerwa v Yokohama Bay Stars - Rezerwa | D | 0-0 |
| Japonia - NPB Reserve League | 2020/09/20 04:00 | Yokohama Bay Stars - Rezerwa v Seibu Lions - Rezerwa | L | 10-8 |
| Japonia - NPB Reserve League | 2020/09/19 04:00 | Yokohama Bay Stars - Rezerwa v Seibu Lions - Rezerwa | D | 5-5 |
| Japonia - NPB Reserve League | 2020/09/17 04:00 | Rakuten Eagles - Rezerwa v Seibu Lions - Rezerwa | D | 6-6 |
| Japonia - NPB Reserve League | 2020/09/12 04:00 | Seibu Lions - Rezerwa v Yomiuri Giants - Rezerwa | D | 0-0 |