Head to Head
| Japan NPB | 2015/09/03 09:00 | Seibu Lions v Softbank Hawks | W | 1-10 |
| Japan NPB | 2015/09/02 09:00 | Seibu Lions v Softbank Hawks | W | 4-5 |
| Japan NPB | 2015/09/01 09:00 | Seibu Lions v Softbank Hawks | L | 13-3 |
| Japan NPB | 2015/08/16 04:00 | Softbank Hawks v Seibu Lions | L | 4-6 |
| Japan NPB | 2015/08/15 05:00 | Softbank Hawks v Seibu Lions | W | 6-5 |
| Japan NPB | 2015/08/14 09:00 | Softbank Hawks v Seibu Lions | W | 8-2 |
| Japan NPB | 2015/08/02 09:00 | Seibu Lions v Softbank Hawks | W | 3-4 |
| Japan NPB | 2015/08/01 09:00 | Seibu Lions v Softbank Hawks | W | 1-2 |
Home History
| Japan NPB | 2015/09/16 09:00 | Orix Buffaloes v Softbank Hawks | W | 0-2 |
| Japan NPB | 2015/09/15 09:00 | Orix Buffaloes v Softbank Hawks | L | 6-1 |
| Japan NPB | 2015/09/13 05:00 | Rakuten Eagles v Softbank Hawks | W | 6-8 |
| Japan NPB | 2015/09/12 05:00 | Rakuten Eagles v Softbank Hawks | W | 2-9 |
| Japan NPB | 2015/09/10 09:00 | Nippon Ham Fighters v Softbank Hawks | W | 3-7 |
| Japan NPB | 2015/09/09 09:00 | Nippon Ham Fighters v Softbank Hawks | W | 2-13 |
| Japan NPB | 2015/09/08 09:00 | Nippon Ham Fighters v Softbank Hawks | W | 5-8 |
| Japan NPB | 2015/09/06 04:00 | Softbank Hawks v Rakuten Eagles | W | 5-3 |
Away History
| Japan NPB | 2015/09/14 09:00 | Rakuten Eagles v Seibu Lions | L | 3-0 |
| Japan NPB | 2015/09/13 04:00 | Seibu Lions v Lotte Marines | L | 4-5 |
| Japan NPB | 2015/09/12 04:00 | Seibu Lions v Nippon Ham Fighters | W | 9-8 |
| Japan NPB | 2015/09/09 09:00 | Seibu Lions v Orix Buffaloes | L | 0-4 |
| Japan NPB | 2015/09/08 09:00 | Seibu Lions v Orix Buffaloes | W | 3-1 |
| Japan NPB | 2015/09/06 08:00 | Lotte Marines v Seibu Lions | W | 3-9 |
| Japan NPB | 2015/09/05 08:00 | Lotte Marines v Seibu Lions | W | 0-6 |
| Japan NPB | 2015/09/04 09:15 | Lotte Marines v Seibu Lions | W | 1-2 |