Face à face
| Japon - NPB | 2020/09/20 04:00 | Seibu Lions v Orix Buffaloes | W | 5-4 |
| Japon - NPB | 2020/09/19 09:00 | Seibu Lions v Orix Buffaloes | L | 3-6 |
| Japon - NPB | 2020/09/18 09:00 | Seibu Lions v Orix Buffaloes | L | 2-8 |
| Japon - NPB | 2020/09/10 09:00 | Orix Buffaloes v Seibu Lions | L | 12-4 |
| Japon - NPB | 2020/09/09 09:00 | Orix Buffaloes v Seibu Lions | W | 5-13 |
| Japon - NPB | 2020/09/08 09:00 | Orix Buffaloes v Seibu Lions | W | 0-2 |
| Japon - NPB | 2020/08/23 04:00 | Seibu Lions v Orix Buffaloes | L | 5-6 |
| Japon - NPB | 2020/08/22 05:00 | Seibu Lions v Orix Buffaloes | L | 2-5 |
Home History
| Japon - NPB | 2020/09/27 04:00 | Rakuten Eagles v Seibu Lions | W | 2-6 |
| Japon - NPB | 2020/09/26 05:00 | Rakuten Eagles v Seibu Lions | W | 1-5 |
| Japon - NPB | 2020/09/25 09:00 | Rakuten Eagles v Seibu Lions | W | 4-5 |
| Japon - NPB | 2020/09/24 09:00 | Nippon Ham Fighters v Seibu Lions | L | 12-2 |
| Japon - NPB | 2020/09/23 09:00 | Nippon Ham Fighters v Seibu Lions | W | 5-6 |
| Japon - NPB | 2020/09/22 09:00 | Nippon Ham Fighters v Seibu Lions | L | 5-1 |
| Japon - NPB | 2020/09/20 04:00 | Seibu Lions v Orix Buffaloes | W | 5-4 |
| Japon - NPB | 2020/09/19 09:00 | Seibu Lions v Orix Buffaloes | L | 3-6 |
Away History
| Japon - NPB | 2020/09/27 04:00 | Nippon Ham Fighters v Orix Buffaloes | W | 8-12 |
| Japon - NPB | 2020/09/26 05:00 | Nippon Ham Fighters v Orix Buffaloes | L | 6-5 |
| Japon - NPB | 2020/09/25 09:00 | Nippon Ham Fighters v Orix Buffaloes | W | 2-9 |
| Japon - NPB | 2020/09/24 09:00 | Orix Buffaloes v Softbank Hawks | D | 3-3 |
| Japon - NPB | 2020/09/23 09:00 | Orix Buffaloes v Softbank Hawks | W | 10-5 |
| Japon - NPB | 2020/09/22 09:00 | Orix Buffaloes v Softbank Hawks | W | 1-0 |
| Japon - NPB | 2020/09/20 04:00 | Seibu Lions v Orix Buffaloes | L | 5-4 |
| Japon - NPB | 2020/09/19 09:00 | Seibu Lions v Orix Buffaloes | W | 3-6 |