Head to Head
| Japan NPB | 2021/08/20 09:00 | Seibu Lions v Orix Buffaloes | L | 1-2 |
| Japan NPB | 2021/07/04 04:00 | Orix Buffaloes v Seibu Lions | L | 3-2 |
| Japan NPB | 2021/07/03 08:45 | Orix Buffaloes v Seibu Lions | L | 8-0 |
| Japan NPB | 2021/07/02 08:45 | Orix Buffaloes v Seibu Lions | L | 5-3 |
| 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 | 2021/05/05 04:00 | Orix Buffaloes v Seibu Lions | W | 2-6 |
Home History
| Japan NPB | 2021/08/20 09:00 | Seibu Lions v Orix Buffaloes | L | 1-2 |
| Japan NPB | 2021/08/19 08:45 | Seibu Lions v Lotte Marines | D | 3-3 |
| Japan NPB | 2021/08/18 08:45 | Seibu Lions v Lotte Marines | L | 3-5 |
| Japan NPB | 2021/08/17 08:45 | Seibu Lions v Lotte Marines | W | 8-2 |
| Japan NPB | 2021/08/15 08:00 | Rakuten Eagles v Seibu Lions | W | 2-10 |
| Japan NPB | 2021/08/14 08:00 | Rakuten Eagles v Seibu Lions | L | 7-6 |
| Japan NPB | 2021/08/13 08:45 | Rakuten Eagles v Seibu Lions | L | 5-0 |
| Japan NPB Exhibition | 2021/08/01 09:00 | Seibu Lions v Hanshin Tigers | L | 0-3 |
Away History
| Japan NPB | 2021/08/20 09:00 | Seibu Lions v Orix Buffaloes | W | 1-2 |
| Japan NPB | 2021/08/18 09:00 | Nippon Ham Fighters v Orix Buffaloes | W | 2-5 |
| Japan NPB | 2021/08/15 08:00 | Orix Buffaloes v Lotte Marines | W | 5-3 |
| Japan NPB | 2021/08/14 08:00 | Orix Buffaloes v Lotte Marines | L | 2-4 |
| Japan NPB | 2021/08/13 08:45 | Orix Buffaloes v Lotte Marines | W | 6-3 |
| Japan NPB | 2021/07/14 04:00 | Orix Buffaloes v Nippon Ham Fighters | L | 2-6 |
| Japan NPB | 2021/07/13 04:00 | Orix Buffaloes v Nippon Ham Fighters | W | 5-0 |
| Japan NPB | 2021/07/11 05:00 | Orix Buffaloes v Softbank Hawks | L | 4-7 |