Head to Head
| Japan NPB | 2020/10/15 09:00 | Seibu Lions v Nippon Ham Fighters | L | 3-8 |
| Japan NPB | 2020/10/14 09:00 | Seibu Lions v Nippon Ham Fighters | L | 2-7 |
| Japan NPB | 2020/10/13 09:00 | Seibu Lions v Nippon Ham Fighters | W | 7-0 |
| Japan NPB | 2020/09/24 09:00 | Nippon Ham Fighters v Seibu Lions | L | 12-2 |
| Japan NPB | 2020/09/23 09:00 | Nippon Ham Fighters v Seibu Lions | W | 5-6 |
| Japan NPB | 2020/09/22 09:00 | Nippon Ham Fighters v Seibu Lions | L | 5-1 |
| Japan NPB | 2020/09/06 04:00 | Seibu Lions v Nippon Ham Fighters | W | 4-2 |
| Japan NPB | 2020/09/05 05:00 | Seibu Lions v Nippon Ham Fighters | L | 2-6 |
Home History
| Japan NPB | 2020/10/30 09:00 | Softbank Hawks v Seibu Lions | L | 4-3 |
| Japan NPB | 2020/10/29 09:00 | Rakuten Eagles v Seibu Lions | L | 13-5 |
| Japan NPB | 2020/10/28 09:00 | Rakuten Eagles v Seibu Lions | W | 3-4 |
| Japan NPB | 2020/10/27 09:00 | Rakuten Eagles v Seibu Lions | W | 3-4 |
| Japan NPB | 2020/10/25 04:00 | Seibu Lions v Softbank Hawks | L | 2-7 |
| Japan NPB | 2020/10/24 05:00 | Seibu Lions v Softbank Hawks | W | 4-1 |
| Japan NPB | 2020/10/23 09:00 | Seibu Lions v Softbank Hawks | L | 1-8 |
| Japan NPB | 2020/10/22 09:00 | Lotte Marines v Seibu Lions | W | 4-7 |
Away History
| Japan NPB | 2020/10/30 09:00 | Orix Buffaloes v Nippon Ham Fighters | L | 3-2 |
| Japan NPB | 2020/10/29 09:00 | Orix Buffaloes v Nippon Ham Fighters | W | 3-4 |
| Japan NPB | 2020/10/28 09:00 | Nippon Ham Fighters v Orix Buffaloes | W | 1-0 |
| Japan NPB | 2020/10/27 09:00 | Nippon Ham Fighters v Orix Buffaloes | W | 5-3 |
| Japan NPB | 2020/10/25 04:00 | Nippon Ham Fighters v Rakuten Eagles | L | 4-13 |
| Japan NPB | 2020/10/24 05:00 | Nippon Ham Fighters v Rakuten Eagles | W | 5-4 |
| Japan NPB | 2020/10/23 09:00 | Nippon Ham Fighters v Rakuten Eagles | D | 4-4 |
| Japan NPB | 2020/10/22 09:00 | Softbank Hawks v Nippon Ham Fighters | L | 4-2 |