Head to Head
| Japan NPB | 2015/06/05 09:00 | Yokohama Bay Stars v Seibu Lions | D | 3-3 |
| Japan NPB | 2014/06/22 04:00 | Yokohama Bay Stars v Seibu Lions | W | 4-3 |
| Japan NPB | 2014/06/21 05:00 | Yokohama Bay Stars v Seibu Lions | W | 8-7 |
| Japan NPB | 2014/06/04 09:00 | Seibu Lions v Yokohama Bay Stars | L | 1-0 |
| Japan NPB | 2014/06/03 09:00 | Seibu Lions v Yokohama Bay Stars | W | 2-5 |
Home History
| Japan NPB | 2015/06/05 09:00 | Yokohama Bay Stars v Seibu Lions | D | 3-3 |
| Japan NPB | 2015/06/04 09:00 | Yokohama Bay Stars v Softbank Hawks | L | 0-8 |
| Japan NPB | 2015/06/03 09:00 | Yokohama Bay Stars v Softbank Hawks | L | 2-4 |
| Japan NPB | 2015/06/02 09:00 | Yokohama Bay Stars v Softbank Hawks | W | 6-5 |
| Japan NPB | 2015/05/31 04:00 | Lotte Marines v Yokohama Bay Stars | L | 9-5 |
| Japan NPB | 2015/05/30 05:00 | Lotte Marines v Yokohama Bay Stars | W | 1-5 |
| Japan NPB | 2015/05/29 09:15 | Lotte Marines v Yokohama Bay Stars | L | 4-3 |
| Japan NPB | 2015/05/28 09:00 | Yokohama Bay Stars v Orix Buffaloes | L | 3-4 |
Away History
| Japan NPB | 2015/06/05 09:00 | Yokohama Bay Stars v Seibu Lions | D | 3-3 |
| Japan NPB | 2015/06/04 09:00 | Chunichi Dragons v Seibu Lions | D | 1-1 |
| Japan NPB | 2015/06/03 09:00 | Chunichi Dragons v Seibu Lions | W | 1-4 |
| Japan NPB | 2015/06/02 09:00 | Chunichi Dragons v Seibu Lions | L | 2-0 |
| Japan NPB | 2015/05/31 04:00 | Seibu Lions v Hanshin Tigers | W | 9-4 |
| Japan NPB | 2015/05/30 05:00 | Seibu Lions v Hanshin Tigers | W | 9-2 |
| Japan NPB | 2015/05/29 09:00 | Seibu Lions v Hanshin Tigers | L | 0-1 |
| Japan NPB | 2015/05/28 09:00 | Yomiuri Giants v Seibu Lions | L | 4-1 |