Head to Head
| Japan NPB | 2018/10/03 09:00 | Seibu Lions v Nippon Ham Fighters | W | 7-3 |
| Japan NPB | 2018/10/02 09:00 | Seibu Lions v Nippon Ham Fighters | W | 3-2 |
| Japan NPB | 2018/10/01 09:00 | Seibu Lions v Nippon Ham Fighters | W | 2-1 |
| Japan NPB | 2018/09/30 09:00 | Seibu Lions v Nippon Ham Fighters | L | 1-4 |
| Japan NPB | 2018/09/19 09:00 | Nippon Ham Fighters v Seibu Lions | W | 4-12 |
| Japan NPB | 2018/09/18 09:00 | Nippon Ham Fighters v Seibu Lions | W | 4-7 |
| Japan NPB | 2018/09/05 09:00 | Seibu Lions v Nippon Ham Fighters | L | 0-4 |
| Japan NPB | 2018/09/04 09:00 | Seibu Lions v Nippon Ham Fighters | W | 7-3 |
Home History
| Japan NPB | 2019/04/04 09:00 | Lotte Marines v Seibu Lions | W | 6-8 |
| Japan NPB | 2019/04/03 09:00 | Lotte Marines v Seibu Lions | W | 3-9 |
| Japan NPB | 2019/04/02 09:00 | Lotte Marines v Seibu Lions | W | 4-7 |
| Japan NPB | 2019/03/31 04:00 | Seibu Lions v Softbank Hawks | L | 1-3 |
| Japan NPB | 2019/03/30 04:00 | Seibu Lions v Softbank Hawks | L | 5-6 |
| Japan NPB | 2019/03/29 09:30 | Seibu Lions v Softbank Hawks | L | 4-5 |
| Japan Pre-Season Friendlies | 2019/03/24 04:00 | Seibu Lions v Yokohama Bay Stars | L | 1-6 |
| Japan Pre-Season Friendlies | 2019/03/23 04:00 | Seibu Lions v Yokohama Bay Stars | W | 4-3 |
Away History
| Japan NPB | 2019/04/04 04:00 | Nippon Ham Fighters v Rakuten Eagles | L | 2-11 |
| Japan NPB | 2019/04/03 04:00 | Nippon Ham Fighters v Rakuten Eagles | L | 2-3 |
| Japan NPB | 2019/04/02 07:00 | Nippon Ham Fighters v Rakuten Eagles | L | 1-3 |
| Japan NPB | 2019/03/31 05:00 | Orix Buffaloes v Nippon Ham Fighters | W | 1-3 |
| Japan NPB | 2019/03/30 05:30 | Orix Buffaloes v Nippon Ham Fighters | D | 4-4 |
| Japan NPB | 2019/03/29 09:30 | Orix Buffaloes v Nippon Ham Fighters | W | 3-7 |
| Japan Pre-Season Friendlies | 2019/03/24 04:00 | Nippon Ham Fighters v Yakult Swallows | L | 2-4 |
| Japan Pre-Season Friendlies | 2019/03/23 05:00 | Nippon Ham Fighters v Yakult Swallows | L | 0-5 |