Head to Head
| Japan NPB | 2021/09/03 09:00 | Seibu Lions v Rakuten Eagles | W | 8-4 |
| 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 | 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 |
| 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 |
Home History
| Japan NPB | 2021/09/03 09:00 | Seibu Lions v Rakuten Eagles | W | 8-4 |
| Japan NPB | 2021/09/01 08:45 | Seibu Lions v Lotte Marines | W | 14-7 |
| Japan NPB | 2021/08/31 08:45 | Seibu Lions v Lotte Marines | L | 1-5 |
| Japan NPB | 2021/08/29 08:00 | Nippon Ham Fighters v Seibu Lions | L | 6-0 |
| Japan NPB | 2021/08/28 08:00 | Nippon Ham Fighters v Seibu Lions | D | 8-8 |
| Japan NPB | 2021/08/27 08:45 | Nippon Ham Fighters v Seibu Lions | L | 7-2 |
| Japan NPB | 2021/08/26 08:45 | Softbank Hawks v Seibu Lions | W | 0-3 |
| Japan NPB | 2021/08/25 08:45 | Softbank Hawks v Seibu Lions | L | 6-1 |
Away History
| Japan NPB | 2021/09/03 09:00 | Seibu Lions v Rakuten Eagles | L | 8-4 |
| Japan NPB | 2021/09/02 09:00 | Rakuten Eagles v Softbank Hawks | L | 2-5 |
| Japan NPB | 2021/08/31 09:00 | Rakuten Eagles v Softbank Hawks | W | 6-3 |
| Japan NPB | 2021/08/29 08:00 | Lotte Marines v Rakuten Eagles | L | 1-0 |
| Japan NPB | 2021/08/28 09:00 | Lotte Marines v Rakuten Eagles | L | 5-1 |
| Japan NPB | 2021/08/27 09:00 | Lotte Marines v Rakuten Eagles | L | 3-1 |
| Japan NPB | 2021/08/26 09:00 | Orix Buffaloes v Rakuten Eagles | W | 6-7 |
| Japan NPB | 2021/08/25 09:00 | Orix Buffaloes v Rakuten Eagles | D | 2-2 |