Head to Head
| Japan NPB Reserve League | 2019/07/08 04:00 | Yokohama Bay Stars Reserves v Seibu Lions Reserves | W | 7-5 |
| Japan NPB Reserve League | 2019/06/23 04:00 | Seibu Lions Reserves v Yokohama Bay Stars Reserves | W | 0-4 |
| Japan NPB Reserve League | 2019/06/22 04:00 | Seibu Lions Reserves v Yokohama Bay Stars Reserves | D | 0-0 |
| Japan NPB Reserve League | 2019/06/21 02:00 | Seibu Lions Reserves v Yokohama Bay Stars Reserves | W | 1-10 |
| Japan NPB Reserve League | 2019/05/31 09:00 | Seibu Lions Reserves v Yokohama Bay Stars Reserves | W | 1-4 |
Home History
| Japan NPB Reserve League | 2020/07/03 04:00 | Yokohama Bay Stars Reserves v Nipponham Fighters Reserves | L | 4-5 |
| Japan NPB Reserve League | 2019/07/23 09:00 | Chiba Lotte Marines Reserves v Yokohama Bay Stars Reserves | L | 14-5 |
| Japan NPB Reserve League | 2019/07/21 04:00 | Yokohama Bay Stars Reserves v Nipponham Fighters Reserves | L | 5-8 |
| Japan NPB Reserve League | 2019/07/20 04:00 | Yokohama Bay Stars Reserves v Nipponham Fighters Reserves | W | 3-2 |
| Japan NPB Reserve League | 2019/07/19 04:00 | Yokohama Bay Stars Reserves v Nipponham Fighters Reserves | W | 14-7 |
| Japan NPB Reserve League | 2019/07/08 04:00 | Yokohama Bay Stars Reserves v Seibu Lions Reserves | W | 7-5 |
| Japan NPB Reserve League | 2019/07/07 05:00 | Nipponham Fighters Reserves v Yokohama Bay Stars Reserves | L | 5-4 |
| Japan NPB Reserve League | 2019/07/06 09:00 | Nipponham Fighters Reserves v Yokohama Bay Stars Reserves | W | 1-4 |
Away History
| Japan NPB Reserve League | 2020/07/09 04:00 | Rakuten Eagles Reserves v Seibu Lions Reserves | W | 7-8 |
| Japan NPB Reserve League | 2020/07/07 03:59 | Rakuten Eagles Reserves v Seibu Lions Reserves | D | 0-0 |
| Japan NPB Reserve League | 2020/06/30 04:00 | Seibu Lions Reserves v Nipponham Fighters Reserves | W | 6-1 |
| Japan NPB Reserve League | 2020/06/28 04:00 | Seibu Lions Reserves v Chiba Lotte Marines Reserves | D | 0-0 |
| Baseball Matches | 2020/03/27 04:00 | Chiba Lotte Marines Reserves v Seibu Lions Reserves | L | 5-4 |
| Japan NPB Reserve League | 2019/07/27 04:16 | Chiba Lotte Marines Reserves v Seibu Lions Reserves | W | 1-2 |
| Japan NPB Reserve League | 2019/07/25 04:00 | Seibu Lions Reserves v Rakuten Eagles Reserves | L | 0-7 |
| Japan NPB Reserve League | 2019/07/24 04:00 | Seibu Lions Reserves v Rakuten Eagles Reserves | L | 3-5 |