| Japan - NPB Reserve League | 2020/10/04 03:30 | Yomiuri Giants - Reserves v Seibu Lions - Reserves | D | 0-0 |
| Japan - NPB Reserve League | 2020/10/02 04:00 | Yomiuri Giants - Reserves v Seibu Lions - Reserves | W | 6-4 |
| Japan - NPB Reserve League | 2020/09/12 04:00 | Seibu Lions - Reserves v Yomiuri Giants - Reserves | D | 0-0 |
| Japan - NPB Reserve League | 2020/09/11 04:00 | Seibu Lions - Reserves v Yomiuri Giants - Reserves | W | 5-7 |
| Japan - NPB Reserve League | 2020/08/23 04:00 | Yomiuri Giants - Reserves v Seibu Lions - Reserves | W | 1-0 |
| Japan - NPB Reserve League | 2020/08/21 04:00 | Yomiuri Giants - Reserves v Seibu Lions - Reserves | D | 0-0 |
| Japan - NPB Reserve League | 2020/07/16 04:00 | Yomiuri Giants - Reserves v Seibu Lions - Reserves | L | 2-4 |
| Japan - NPB Reserve League | 2020/07/15 04:00 | Yomiuri Giants - Reserves v Seibu Lions - Reserves | D | 3-3 |
| Japan - NPB Reserve League | 2019/07/06 07:00 | Seibu Lions - Reserves v Yomiuri Giants - Reserves | L | 5-0 |
| Japan - NPB Reserve League | 2019/07/05 07:00 | Seibu Lions - Reserves v Yomiuri Giants - Reserves | L | 3-1 |
| Japan - NPB Reserve League | 2019/06/16 04:00 | Seibu Lions - Reserves v Yomiuri Giants - Reserves | L | 9-4 |