Head to Head
| Japan NPB | 2021/08/28 08:00 | Nippon Ham Fighters v Seibu Lions | D | 8-8 |
| Japan NPB | 2021/08/27 08:45 | Nippon Ham Fighters v Seibu Lions | W | 7-2 |
| Japan NPB | 2021/07/07 09:00 | Seibu Lions v Nippon Ham Fighters | W | 1-2 |
| Japan NPB | 2021/07/06 09:00 | Seibu Lions v Nippon Ham Fighters | W | 3-4 |
| Japan NPB | 2021/05/23 05:00 | Nippon Ham Fighters v Seibu Lions | W | 10-3 |
| Japan NPB | 2021/05/22 05:00 | Nippon Ham Fighters v Seibu Lions | L | 1-8 |
| Japan NPB | 2021/05/21 08:45 | Nippon Ham Fighters v Seibu Lions | L | 1-7 |
| Japan NPB | 2021/05/01 05:00 | Seibu Lions v Nippon Ham Fighters | W | 4-5 |
Home History
| Japan NPB | 2021/08/28 08:00 | Nippon Ham Fighters v Seibu Lions | D | 8-8 |
| Japan NPB | 2021/08/27 08:45 | Nippon Ham Fighters v Seibu Lions | W | 7-2 |
| Japan NPB | 2021/08/25 09:00 | Lotte Marines v Nippon Ham Fighters | L | 7-4 |
| Japan NPB | 2021/08/24 09:30 | Lotte Marines v Nippon Ham Fighters | D | 3-3 |
| Japan NPB | 2021/08/22 05:00 | Rakuten Eagles v Nippon Ham Fighters | W | 1-2 |
| Japan NPB | 2021/08/21 06:00 | Rakuten Eagles v Nippon Ham Fighters | L | 8-4 |
| Japan NPB | 2021/08/20 09:00 | Rakuten Eagles v Nippon Ham Fighters | D | 3-3 |
| Japan NPB | 2021/08/18 09:00 | Nippon Ham Fighters v Orix Buffaloes | L | 2-5 |
Away History
| Japan NPB | 2021/08/28 08:00 | Nippon Ham Fighters v Seibu Lions | D | 8-8 |
| Japan NPB | 2021/08/27 08:45 | Nippon Ham Fighters v Seibu Lions | L | 7-2 |
| Japan NPB | 2021/08/26 08:45 | Softbank Hawks v Seibu Lions | W | 0-3 |
| Japan NPB | 2021/08/25 08:45 | Softbank Hawks v Seibu Lions | L | 6-1 |
| Japan NPB | 2021/08/24 08:45 | Softbank Hawks v Seibu Lions | D | 4-4 |
| Japan NPB | 2021/08/22 04:00 | Seibu Lions v Orix Buffaloes | W | 10-3 |
| Japan NPB | 2021/08/20 09:00 | Seibu Lions v Orix Buffaloes | L | 1-2 |
| Japan NPB | 2021/08/19 08:45 | Seibu Lions v Lotte Marines | D | 3-3 |