Head to Head
| Japan NPB | 2019/06/09 04:00 | Seibu Lions v Yokohama Bay Stars | W | 4-6 |
| Japan NPB | 2019/06/08 05:00 | Seibu Lions v Yokohama Bay Stars | W | 3-7 |
| Japan NPB | 2019/06/07 09:00 | Seibu Lions v Yokohama Bay Stars | L | 6-2 |
| Japan Pre-Season Friendlies | 2019/03/24 04:00 | Seibu Lions v Yokohama Bay Stars | W | 1-6 |
| Japan Pre-Season Friendlies | 2019/03/23 04:00 | Seibu Lions v Yokohama Bay Stars | L | 4-3 |
| Japan Pre-Season Friendlies | 2019/03/16 04:00 | Yokohama Bay Stars v Seibu Lions | L | 1-4 |
| Japan NPB | 2018/06/18 09:00 | Seibu Lions v Yokohama Bay Stars | W | 2-4 |
| Japan NPB | 2018/06/07 09:00 | Seibu Lions v Yokohama Bay Stars | L | 9-7 |
Home History
| Japan NPB | 2020/11/14 05:00 | Yomiuri Giants v Yokohama Bay Stars | W | 4-5 |
| Japan NPB | 2020/11/11 09:00 | Yokohama Bay Stars v Hanshin Tigers | L | 0-1 |
| Japan NPB | 2020/11/05 09:00 | Yokohama Bay Stars v Chunichi Dragons | L | 0-2 |
| Japan NPB | 2020/11/04 09:00 | Yokohama Bay Stars v Chunichi Dragons | L | 4-5 |
| Japan NPB | 2020/11/03 05:00 | Yokohama Bay Stars v Chunichi Dragons | L | 5-7 |
| Japan NPB | 2020/11/01 05:00 | Hanshin Tigers v Yokohama Bay Stars | W | 5-6 |
| Japan NPB | 2020/10/31 05:00 | Hanshin Tigers v Yokohama Bay Stars | L | 13-5 |
| Japan NPB | 2020/10/30 09:00 | Hanshin Tigers v Yokohama Bay Stars | D | 3-3 |
Away History
| Japan NPB | 2020/11/09 09:00 | Seibu Lions v Softbank Hawks | L | 2-6 |
| Japan NPB | 2020/11/08 04:00 | Seibu Lions v Lotte Marines | L | 2-8 |
| Japan NPB | 2020/11/07 05:00 | Seibu Lions v Rakuten Eagles | D | 6-6 |
| Japan NPB | 2020/11/06 09:00 | Seibu Lions v Rakuten Eagles | L | 2-4 |
| Japan NPB | 2020/11/04 09:00 | Nippon Ham Fighters v Seibu Lions | W | 3-10 |
| Japan NPB | 2020/11/03 05:00 | Nippon Ham Fighters v Seibu Lions | W | 4-5 |
| Japan NPB | 2020/11/02 09:00 | Nippon Ham Fighters v Seibu Lions | W | 0-4 |
| Japan NPB | 2020/11/01 04:00 | Softbank Hawks v Seibu Lions | W | 1-3 |