Head to Head
| Japan NPB | 2021/06/28 09:00 | Seibu Lions v Softbank Hawks | W | 5-2 |
| Japan NPB | 2021/05/20 08:45 | Softbank Hawks v Seibu Lions | W | 2-7 |
| Japan NPB | 2021/05/19 08:45 | Softbank Hawks v Seibu Lions | L | 6-5 |
| Japan NPB | 2021/05/18 08:45 | Softbank Hawks v Seibu Lions | L | 8-2 |
| Japan NPB | 2021/05/09 04:00 | Seibu Lions v Softbank Hawks | L | 1-3 |
| Japan NPB | 2021/05/08 04:00 | Seibu Lions v Softbank Hawks | W | 2-0 |
| Japan NPB | 2021/05/07 09:00 | Seibu Lions v Softbank Hawks | D | 2-2 |
| Japan NPB | 2021/04/18 04:00 | Softbank Hawks v Seibu Lions | D | 4-4 |
Home History
| Japan NPB | 2021/06/28 09:00 | Seibu Lions v Softbank Hawks | W | 5-2 |
| Japan NPB | 2021/06/27 04:00 | Seibu Lions v Orix Buffaloes | L | 0-10 |
| Japan NPB | 2021/06/26 05:00 | Seibu Lions v Orix Buffaloes | D | 3-3 |
| Japan NPB | 2021/06/25 09:00 | Seibu Lions v Orix Buffaloes | W | 3-1 |
| Japan NPB | 2021/06/23 08:45 | Rakuten Eagles v Seibu Lions | L | 6-4 |
| Japan NPB | 2021/06/22 08:45 | Rakuten Eagles v Seibu Lions | W | 0-2 |
| Japan NPB | 2021/06/20 04:00 | Lotte Marines v Seibu Lions | D | 3-3 |
| Japan NPB | 2021/06/19 05:00 | Lotte Marines v Seibu Lions | W | 2-7 |
Away History
| Japan NPB | 2021/06/28 09:00 | Seibu Lions v Softbank Hawks | L | 5-2 |
| Japan NPB | 2021/06/27 04:00 | Softbank Hawks v Rakuten Eagles | L | 2-3 |
| Japan NPB | 2021/06/26 05:00 | Softbank Hawks v Rakuten Eagles | L | 2-3 |
| Japan NPB | 2021/06/25 09:00 | Softbank Hawks v Rakuten Eagles | L | 1-5 |
| Japan NPB | 2021/06/24 08:45 | Softbank Hawks v Lotte Marines | W | 7-2 |
| Japan NPB | 2021/06/23 08:45 | Softbank Hawks v Lotte Marines | D | 1-1 |
| Japan NPB | 2021/06/22 08:45 | Softbank Hawks v Lotte Marines | W | 6-4 |
| Japan NPB | 2021/06/20 04:00 | Nippon Ham Fighters v Softbank Hawks | D | 1-1 |