Head to Head
| Japan NPB | 2018/05/24 09:00 | Seibu Lions v Softbank Hawks | W | 12-5 |
| Japan NPB | 2018/05/23 09:00 | Seibu Lions v Softbank Hawks | W | 2-1 |
| Japan NPB | 2018/05/22 09:00 | Seibu Lions v Softbank Hawks | L | 3-5 |
| Japan NPB | 2018/05/09 09:00 | Softbank Hawks v Seibu Lions | L | 3-0 |
| Japan NPB | 2018/05/08 09:00 | Softbank Hawks v Seibu Lions | L | 5-0 |
| Japan NPB | 2018/04/26 09:00 | Seibu Lions v Softbank Hawks | L | 1-4 |
| Japan NPB | 2018/04/25 09:00 | Seibu Lions v Softbank Hawks | W | 12-6 |
| Japan NPB | 2018/04/04 05:00 | Softbank Hawks v Seibu Lions | W | 1-2 |
Home History
| Japan NPB | 2018/06/02 05:00 | Hanshin Tigers v Seibu Lions | L | 10-5 |
| Japan NPB | 2018/06/01 09:00 | Hanshin Tigers v Seibu Lions | W | 0-2 |
| Japan NPB | 2018/05/31 09:00 | Seibu Lions v Hiroshima Carp | W | 12-7 |
| Japan NPB | 2018/05/30 09:00 | Seibu Lions v Hiroshima Carp | L | 7-8 |
| Japan NPB | 2018/05/29 09:00 | Seibu Lions v Hiroshima Carp | W | 7-3 |
| Japan NPB | 2018/05/27 04:00 | Nippon Ham Fighters v Seibu Lions | L | 10-8 |
| Japan NPB | 2018/05/26 05:00 | Nippon Ham Fighters v Seibu Lions | L | 6-5 |
| Japan NPB | 2018/05/25 09:00 | Nippon Ham Fighters v Seibu Lions | L | 8-5 |
Away History
| Japan NPB | 2018/06/02 05:00 | Yokohama Bay Stars v Softbank Hawks | W | 4-5 |
| Japan NPB | 2018/06/01 09:00 | Yokohama Bay Stars v Softbank Hawks | W | 2-6 |
| Japan NPB | 2018/05/31 09:00 | Softbank Hawks v Hanshin Tigers | W | 5-2 |
| Japan NPB | 2018/05/30 09:00 | Softbank Hawks v Hanshin Tigers | W | 6-3 |
| Japan NPB | 2018/05/29 09:00 | Softbank Hawks v Hanshin Tigers | W | 1-0 |
| Japan NPB | 2018/05/27 04:00 | Rakuten Eagles v Softbank Hawks | L | 8-4 |
| Japan NPB | 2018/05/26 05:00 | Rakuten Eagles v Softbank Hawks | W | 3-4 |
| Japan NPB | 2018/05/25 09:00 | Rakuten Eagles v Softbank Hawks | L | 6-4 |