Head to Head
| Japan NPB | 2017/06/11 04:00 | Yokohama Bay Stars v Seibu Lions | W | 0-1 |
| Japan NPB | 2017/06/10 05:00 | Yokohama Bay Stars v Seibu Lions | W | 2-6 |
| Japan NPB | 2017/06/09 09:00 | Yokohama Bay Stars v Seibu Lions | L | 4-3 |
| Japan NPB | 2016/06/02 09:00 | Seibu Lions v Yokohama Bay Stars | W | 4-1 |
| Japan NPB | 2016/06/01 09:00 | Seibu Lions v Yokohama Bay Stars | W | 7-0 |
| Japan NPB | 2016/05/31 09:00 | Seibu Lions v Yokohama Bay Stars | L | 2-5 |
| Japan NPB | 2015/06/07 04:00 | Yokohama Bay Stars v Seibu Lions | W | 3-9 |
| Japan NPB | 2015/06/06 05:00 | Yokohama Bay Stars v Seibu Lions | W | 1-5 |
Home History
| Japan Pre-Season Friendlies | 2018/03/11 04:00 | Orix Buffaloes v Seibu Lions | L | 6-2 |
| Japan NPB | 2017/10/16 09:00 | Rakuten Eagles v Seibu Lions | L | 5-2 |
| Japan NPB | 2017/10/15 04:00 | Rakuten Eagles v Seibu Lions | L | 4-1 |
| Japan NPB | 2017/10/14 04:00 | Rakuten Eagles v Seibu Lions | W | 0-10 |
| Japan NPB | 2017/10/05 09:00 | Nippon Ham Fighters v Seibu Lions | L | 8-6 |
| Japan NPB | 2017/10/03 09:00 | Rakuten Eagles v Seibu Lions | W | 3-10 |
| Japan NPB | 2017/10/02 09:00 | Rakuten Eagles v Seibu Lions | L | 2-1 |
| Japan NPB | 2017/10/01 05:00 | Seibu Lions v Nippon Ham Fighters | W | 5-0 |
Away History
| Japan Pre-Season Friendlies | 2018/03/11 04:00 | Nippon Ham Fighters v Yokohama Bay Stars | D | 1-1 |
| Japan Pre-Season Friendlies | 2018/03/07 04:00 | Hanshin Tigers v Yokohama Bay Stars | W | 1-3 |
| Japan NPB | 2017/11/04 09:30 | Yokohama Bay Stars v Softbank Hawks | L | 3-4 |
| Japan NPB | 2017/11/02 09:30 | Softbank Hawks v Yokohama Bay Stars | W | 4-5 |
| Japan NPB | 2017/11/01 09:30 | Softbank Hawks v Yokohama Bay Stars | W | 0-6 |
| Japan NPB | 2017/10/31 09:30 | Softbank Hawks v Yokohama Bay Stars | L | 3-2 |
| Japan NPB | 2017/10/29 09:30 | Yokohama Bay Stars v Softbank Hawks | L | 3-4 |
| Japan NPB | 2017/10/28 09:30 | Yokohama Bay Stars v Softbank Hawks | L | 1-10 |