Head to Head
| Japan NPB | 2021/08/13 08:45 | Rakuten Eagles v Seibu Lions | W | 5-0 |
| Japan NPB | 2021/07/11 04:00 | Seibu Lions v Rakuten Eagles | W | 3-9 |
| Japan NPB | 2021/07/10 07:00 | Seibu Lions v Rakuten Eagles | L | 6-2 |
| Japan NPB | 2021/06/23 08:45 | Rakuten Eagles v Seibu Lions | W | 6-4 |
| Japan NPB | 2021/06/22 08:45 | Rakuten Eagles v Seibu Lions | L | 0-2 |
| Japan NPB | 2021/05/12 05:00 | Seibu Lions v Rakuten Eagles | W | 3-4 |
| Japan NPB | 2021/05/11 09:00 | Seibu Lions v Rakuten Eagles | D | 3-3 |
| Japan NPB | 2021/04/25 04:00 | Seibu Lions v Rakuten Eagles | W | 4-8 |
Home History
| Japan NPB | 2021/08/13 08:45 | Rakuten Eagles v Seibu Lions | W | 5-0 |
| Japan NPB | 2021/07/14 09:00 | Rakuten Eagles v Softbank Hawks | W | 4-2 |
| Japan NPB | 2021/07/13 09:00 | Rakuten Eagles v Softbank Hawks | W | 6-2 |
| Japan NPB | 2021/07/12 09:00 | Rakuten Eagles v Softbank Hawks | L | 0-8 |
| Japan NPB | 2021/07/11 04:00 | Seibu Lions v Rakuten Eagles | W | 3-9 |
| Japan NPB | 2021/07/10 07:00 | Seibu Lions v Rakuten Eagles | L | 6-2 |
| Japan NPB | 2021/07/08 09:00 | Rakuten Eagles v Orix Buffaloes | D | 1-1 |
| Japan NPB | 2021/07/07 09:00 | Rakuten Eagles v Orix Buffaloes | W | 6-5 |
Away History
| 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 |
| Japan NPB Exhibition | 2021/07/31 09:00 | Seibu Lions v Hanshin Tigers | L | 3-6 |
| Japan NPB Exhibition | 2021/07/30 09:00 | Seibu Lions v Hanshin Tigers | L | 2-3 |
| Japan NPB | 2021/07/14 08:45 | Lotte Marines v Seibu Lions | W | 3-8 |
| Japan NPB | 2021/07/13 08:45 | Lotte Marines v Seibu Lions | L | 7-6 |
| Japan NPB | 2021/07/11 04:00 | Seibu Lions v Rakuten Eagles | L | 3-9 |
| Japan NPB | 2021/07/10 07:00 | Seibu Lions v Rakuten Eagles | W | 6-2 |