Head to Head
| Japan NPB | 2018/09/16 04:00 | Seibu Lions v Softbank Hawks | L | 8-5 |
| Japan NPB | 2018/09/15 05:00 | Softbank Hawks v Seibu Lions | L | 5-11 |
| Japan NPB | 2018/08/26 04:00 | Seibu Lions v Softbank Hawks | W | 8-12 |
| Japan NPB | 2018/08/25 09:00 | Seibu Lions v Softbank Hawks | W | 1-5 |
| Japan NPB | 2018/08/02 09:00 | Softbank Hawks v Seibu Lions | L | 2-10 |
| Japan NPB | 2018/08/01 09:00 | Softbank Hawks v Seibu Lions | W | 14-6 |
| Japan NPB | 2018/07/31 09:00 | Softbank Hawks v Seibu Lions | L | 4-7 |
| Japan NPB | 2018/07/18 09:00 | Seibu Lions v Softbank Hawks | L | 12-5 |
Home History
| Japan NPB | 2018/09/16 04:00 | Seibu Lions v Softbank Hawks | L | 8-5 |
| Japan NPB | 2018/09/15 05:00 | Softbank Hawks v Seibu Lions | L | 5-11 |
| Japan NPB | 2018/09/12 09:00 | Softbank Hawks v Rakuten Eagles | W | 13-2 |
| Japan NPB | 2018/09/11 09:00 | Softbank Hawks v Rakuten Eagles | W | 6-1 |
| Japan NPB | 2018/09/09 04:00 | Orix Buffaloes v Softbank Hawks | W | 0-1 |
| Japan NPB | 2018/09/08 05:00 | Softbank Hawks v Orix Buffaloes | W | 12-0 |
| Japan NPB | 2018/09/07 09:00 | Orix Buffaloes v Softbank Hawks | L | 3-1 |
| Japan NPB | 2018/09/06 09:15 | Softbank Hawks v Lotte Marines | W | 2-1 |
Away History
| 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 |
| 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 |