Face à face
| Japon - NPB | 2019/08/20 09:00 | Nippon Ham Fighters v Seibu Lions | L | 2-4 |
| Japon - NPB | 2019/07/28 08:00 | Nippon Ham Fighters v Seibu Lions | L | 7-8 |
| Japon - NPB | 2019/07/27 09:00 | Nippon Ham Fighters v Seibu Lions | W | 10-6 |
| Japon - NPB | 2019/07/26 09:00 | Nippon Ham Fighters v Seibu Lions | W | 12-7 |
| Japon - NPB | 2019/07/04 09:00 | Seibu Lions v Nippon Ham Fighters | L | 8-2 |
| Japon - NPB | 2019/07/03 09:00 | Seibu Lions v Nippon Ham Fighters | W | 3-5 |
| Japon - NPB | 2019/07/02 09:00 | Seibu Lions v Nippon Ham Fighters | W | 1-9 |
| Japon - NPB | 2019/05/26 04:00 | Nippon Ham Fighters v Seibu Lions | W | 6-5 |
Home History
| Japon - NPB | 2019/08/20 09:00 | Nippon Ham Fighters v Seibu Lions | L | 2-4 |
| Japon - NPB | 2019/08/18 05:00 | Rakuten Eagles v Nippon Ham Fighters | D | 4-4 |
| Japon - NPB | 2019/08/17 06:00 | Rakuten Eagles v Nippon Ham Fighters | W | 1-6 |
| Japon - NPB | 2019/08/15 09:00 | Lotte Marines v Nippon Ham Fighters | L | 6-0 |
| Japon - NPB | 2019/08/14 09:00 | Lotte Marines v Nippon Ham Fighters | L | 9-4 |
| Japon - NPB | 2019/08/13 09:00 | Lotte Marines v Nippon Ham Fighters | L | 6-1 |
| Japon - NPB | 2019/08/12 04:00 | Nippon Ham Fighters v Softbank Hawks | L | 3-6 |
| Japon - NPB | 2019/08/11 04:00 | Nippon Ham Fighters v Softbank Hawks | L | 0-2 |
Away History
| Japon - NPB | 2019/08/20 09:00 | Nippon Ham Fighters v Seibu Lions | W | 2-4 |
| Japon - NPB | 2019/08/19 09:00 | Seibu Lions v Softbank Hawks | L | 1-2 |
| Japon - NPB | 2019/08/18 05:00 | Seibu Lions v Softbank Hawks | L | 4-5 |
| Japon - NPB | 2019/08/17 09:00 | Seibu Lions v Softbank Hawks | W | 13-8 |
| Japon - NPB | 2019/08/15 09:00 | Orix Buffaloes v Seibu Lions | L | 20-8 |
| Japon - NPB | 2019/08/14 09:00 | Orix Buffaloes v Seibu Lions | W | 7-8 |
| Japon - NPB | 2019/08/13 09:00 | Orix Buffaloes v Seibu Lions | W | 4-11 |
| Japon - NPB | 2019/08/12 08:00 | Seibu Lions v Lotte Marines | W | 9-2 |
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