Head to Head
| Japan NPB | 2018/08/17 09:00 | Nippon Ham Fighters v Seibu Lions | W | 5-3 |
| Japan NPB | 2018/08/05 09:00 | Nippon Ham Fighters v Seibu Lions | L | 4-7 |
| Japan NPB | 2018/08/04 09:00 | Nippon Ham Fighters v Seibu Lions | W | 6-3 |
| Japan NPB | 2018/08/03 09:00 | Nippon Ham Fighters v Seibu Lions | L | 3-4 |
| Japan NPB | 2018/07/03 09:00 | Seibu Lions v Nippon Ham Fighters | L | 5-2 |
| Japan NPB | 2018/05/27 04:00 | Nippon Ham Fighters v Seibu Lions | W | 10-8 |
| Japan NPB | 2018/05/26 05:00 | Nippon Ham Fighters v Seibu Lions | W | 6-5 |
| Japan NPB | 2018/05/25 09:00 | Nippon Ham Fighters v Seibu Lions | W | 8-5 |
Home History
| Japan NPB | 2018/08/17 09:00 | Nippon Ham Fighters v Seibu Lions | W | 5-3 |
| Japan NPB | 2018/08/16 09:00 | Lotte Marines v Nippon Ham Fighters | L | 6-2 |
| Japan NPB | 2018/08/15 09:00 | Lotte Marines v Nippon Ham Fighters | W | 1-4 |
| Japan NPB | 2018/08/14 09:00 | Lotte Marines v Nippon Ham Fighters | L | 3-1 |
| Japan NPB | 2018/08/12 04:00 | Nippon Ham Fighters v Softbank Hawks | L | 5-11 |
| Japan NPB | 2018/08/11 05:00 | Nippon Ham Fighters v Softbank Hawks | W | 3-1 |
| Japan NPB | 2018/08/10 09:00 | Nippon Ham Fighters v Softbank Hawks | L | 0-5 |
| Japan NPB | 2018/08/09 09:00 | Rakuten Eagles v Nippon Ham Fighters | L | 10-0 |
Away History
| Japan NPB | 2018/08/17 09:00 | Nippon Ham Fighters v Seibu Lions | L | 5-3 |
| Japan NPB | 2018/08/16 09:00 | Orix Buffaloes v Seibu Lions | D | 1-1 |
| Japan NPB | 2018/08/15 09:00 | Orix Buffaloes v Seibu Lions | L | 4-3 |
| Japan NPB | 2018/08/14 09:00 | Orix Buffaloes v Seibu Lions | W | 6-7 |
| Japan NPB | 2018/08/12 08:00 | Seibu Lions v Rakuten Eagles | L | 1-3 |
| Japan NPB | 2018/08/11 09:00 | Seibu Lions v Rakuten Eagles | W | 10-0 |
| Japan NPB | 2018/08/10 09:00 | Seibu Lions v Rakuten Eagles | W | 7-3 |
| Japan NPB | 2018/08/09 09:00 | Seibu Lions v Orix Buffaloes | L | 6-7 |