Head to Head
| Japan NPB | 2018/09/09 04:00 | Lotte Marines v Seibu Lions | W | 2-6 |
| Japan NPB | 2018/09/08 05:00 | Seibu Lions v Lotte Marines | L | 9-13 |
| Japan NPB | 2018/09/07 09:00 | Lotte Marines v Seibu Lions | W | 4-10 |
| Japan NPB | 2018/08/23 09:15 | Seibu Lions v Lotte Marines | W | 4-2 |
| Japan NPB | 2018/08/22 09:15 | Seibu Lions v Lotte Marines | W | 8-3 |
| Japan NPB | 2018/08/21 09:30 | Seibu Lions v Lotte Marines | L | 4-6 |
| Japan NPB | 2018/07/29 09:00 | Seibu Lions v Lotte Marines | W | 9-3 |
| Japan NPB | 2018/07/11 09:00 | Lotte Marines v Seibu Lions | W | 4-8 |
Home History
| 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 | 2018/09/17 04:00 | Softbank Hawks v Seibu Lions | W | 1-8 |
| Japan NPB | 2018/09/16 04:00 | Seibu Lions v Softbank Hawks | W | 8-5 |
| Japan NPB | 2018/09/15 05:00 | Softbank Hawks v Seibu Lions | W | 5-11 |
| Japan NPB | 2018/09/14 09:00 | Rakuten Eagles v Seibu Lions | W | 5-10 |
| Japan NPB | 2018/09/12 09:00 | Seibu Lions v Orix Buffaloes | L | 0-7 |
| Japan NPB | 2018/09/11 09:00 | Seibu Lions v Orix Buffaloes | W | 7-0 |
Away History
| Japan NPB | 2018/09/19 09:15 | Softbank Hawks v Lotte Marines | L | 3-0 |
| Japan NPB | 2018/09/18 09:15 | Softbank Hawks v Lotte Marines | L | 4-2 |
| Japan NPB | 2018/09/17 05:00 | Rakuten Eagles v Lotte Marines | L | 7-2 |
| Japan NPB | 2018/09/16 05:00 | Rakuten Eagles v Lotte Marines | L | 3-1 |
| Japan NPB | 2018/09/15 05:00 | Rakuten Eagles v Lotte Marines | L | 10-3 |
| 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 |