Head to Head
| Japan NPB | 2020/11/04 09:00 | Nippon Ham Fighters v Seibu Lions | W | 3-10 |
| Japan NPB | 2020/11/03 05:00 | Nippon Ham Fighters v Seibu Lions | W | 4-5 |
| Japan NPB | 2020/11/02 09:00 | Nippon Ham Fighters v Seibu Lions | W | 0-4 |
| 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 |
Home History
| Japan NPB | 2020/11/09 09:00 | Seibu Lions v Softbank Hawks | L | 2-6 |
| Japan NPB | 2020/11/08 04:00 | Seibu Lions v Lotte Marines | L | 2-8 |
| Japan NPB | 2020/11/07 05:00 | Seibu Lions v Rakuten Eagles | D | 6-6 |
| Japan NPB | 2020/11/06 09:00 | Seibu Lions v Rakuten Eagles | L | 2-4 |
| Japan NPB | 2020/11/04 09:00 | Nippon Ham Fighters v Seibu Lions | W | 3-10 |
| Japan NPB | 2020/11/03 05:00 | Nippon Ham Fighters v Seibu Lions | W | 4-5 |
| Japan NPB | 2020/11/02 09:00 | Nippon Ham Fighters v Seibu Lions | W | 0-4 |
| Japan NPB | 2020/11/01 04:00 | Softbank Hawks v Seibu Lions | W | 1-3 |
Away History
| Japan NPB Exhibition | 2021/02/27 03:50 | Yokohama Bay Stars v Nippon Ham Fighters | D | 3-3 |
| Japan NPB Exhibition | 2021/02/23 03:50 | Rakuten Eagles v Nippon Ham Fighters | L | 2-0 |
| Japan NPB Exhibition | 2021/02/21 04:00 | Chunichi Dragons v Nippon Ham Fighters | W | 2-5 |
| Japan NPB | 2020/11/09 09:00 | Nippon Ham Fighters v Lotte Marines | W | 7-4 |
| Japan NPB | 2020/11/06 09:00 | Nippon Ham Fighters v Orix Buffaloes | L | 3-4 |
| Japan NPB | 2020/11/04 09:00 | Nippon Ham Fighters v Seibu Lions | L | 3-10 |
| Japan NPB | 2020/11/03 05:00 | Nippon Ham Fighters v Seibu Lions | L | 4-5 |
| Japan NPB | 2020/11/02 09:00 | Nippon Ham Fighters v Seibu Lions | L | 0-4 |