Head to Head
| Japan NPB | 2019/04/03 09:00 | Lotte Marines v Seibu Lions | L | 3-9 |
| Japan NPB | 2019/04/02 09:00 | Lotte Marines v Seibu Lions | L | 4-7 |
| Japan NPB | 2018/10/04 09:15 | Seibu Lions v Lotte Marines | L | 6-3 |
| Japan NPB | 2018/09/22 05:00 | Seibu Lions v Lotte Marines | L | 5-3 |
| Japan NPB | 2018/09/21 09:15 | Seibu Lions v Lotte Marines | L | 7-4 |
| Japan NPB | 2018/09/09 04:00 | Lotte Marines v Seibu Lions | L | 2-6 |
| Japan NPB | 2018/09/08 05:00 | Seibu Lions v Lotte Marines | W | 9-13 |
| Japan NPB | 2018/09/07 09:00 | Lotte Marines v Seibu Lions | L | 4-10 |
Home History
| Japan NPB | 2019/04/03 09:00 | Lotte Marines v Seibu Lions | L | 3-9 |
| Japan NPB | 2019/04/02 09:00 | Lotte Marines v Seibu Lions | L | 4-7 |
| Japan NPB | 2019/03/31 05:00 | Rakuten Eagles v Lotte Marines | L | 9-4 |
| Japan NPB | 2019/03/30 05:00 | Rakuten Eagles v Lotte Marines | L | 9-3 |
| Japan NPB | 2019/03/29 09:30 | Rakuten Eagles v Lotte Marines | W | 4-5 |
| Japan Pre-Season Friendlies | 2019/03/24 05:00 | Yomiuri Giants v Lotte Marines | D | 0-0 |
| Japan Pre-Season Friendlies | 2019/03/23 09:00 | Yomiuri Giants v Lotte Marines | W | 5-8 |
| Japan Pre-Season Friendlies | 2019/03/21 04:00 | Lotte Marines v Hanshin Tigers | W | 3-0 |
Away History
| 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 |
| Japan Pre-Season Friendlies | 2019/03/22 09:00 | Seibu Lions v Hiroshima Carp | L | 0-4 |