Head to Head
| 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 |
| Japan NPB | 2021/05/04 05:00 | Orix Buffaloes v Seibu Lions | D | 6-6 |
| Japan NPB | 2021/05/03 08:45 | Orix Buffaloes v Seibu Lions | L | 6-3 |
| Japan NPB | 2021/04/22 09:00 | Seibu Lions v Orix Buffaloes | L | 6-7 |
| Japan NPB | 2021/04/21 09:00 | Seibu Lions v Orix Buffaloes | L | 2-4 |
| Japan NPB | 2021/04/20 09:00 | Seibu Lions v Orix Buffaloes | L | 3-11 |
| Japan NPB | 2021/03/28 04:00 | Orix Buffaloes v Seibu Lions | W | 1-5 |
Home History
| 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 |
| Japan NPB | 2021/06/18 08:45 | Lotte Marines v Seibu Lions | L | 5-0 |
| Japan NPB | 2021/06/15 09:00 | Seibu Lions v Hiroshima Carp | L | 3-5 |
| Japan NPB | 2021/06/14 09:00 | Seibu Lions v Hiroshima Carp | W | 3-2 |
Away History
| Japan NPB | 2021/06/25 09:00 | Seibu Lions v Orix Buffaloes | L | 3-1 |
| Japan NPB | 2021/06/24 09:00 | Nippon Ham Fighters v Orix Buffaloes | L | 5-2 |
| Japan NPB | 2021/06/23 09:00 | Nippon Ham Fighters v Orix Buffaloes | W | 1-3 |
| Japan NPB | 2021/06/22 09:00 | Nippon Ham Fighters v Orix Buffaloes | W | 2-5 |
| Japan NPB | 2021/06/21 09:00 | Orix Buffaloes v Rakuten Eagles | W | 4-3 |
| Japan NPB | 2021/06/20 04:00 | Orix Buffaloes v Rakuten Eagles | W | 3-0 |
| Japan NPB | 2021/06/18 09:00 | Orix Buffaloes v Rakuten Eagles | W | 5-2 |
| Japan NPB | 2021/06/13 04:00 | Hiroshima Carp v Orix Buffaloes | W | 8-9 |