| Japan - NPB Reserve League | 2023/06/07 04:00 | Seibu Lions - Reserves v Yomiuri Giants - Reserves | W | 6-4 |
| Japan - NPB Reserve League | 2023/06/06 04:00 | Seibu Lions - Reserves v Yomiuri Giants - Reserves | W | 5-1 |
| Japan - NPB Reserve League | 2023/05/12 04:00 | Yomiuri Giants - Reserves v Seibu Lions - Reserves | W | 3-4 |
| Japan - NPB Reserve League | 2023/03/31 04:00 | Yomiuri Giants - Reserves v Seibu Lions - Reserves | W | 2-12 |
| Japan - NPB Reserve League | 2022/09/30 04:00 | Seibu Lions - Reserves v Yomiuri Giants - Reserves | L | 0-4 |
| Japan - NPB Reserve League | 2022/09/13 04:00 | Yomiuri Giants - Reserves v Seibu Lions - Reserves | D | 0-0 |
| Japan - NPB Reserve League | 2022/08/12 04:00 | Seibu Lions - Reserves v Yomiuri Giants - Reserves | L | 6-13 |
| Japan - NPB Reserve League | 2022/04/08 04:00 | Seibu Lions - Reserves v Yomiuri Giants - Reserves | L | 5-9 |
| Japan - NPB Reserve League | 2023/06/07 04:00 | Seibu Lions - Reserves v Yomiuri Giants - Reserves | W | 6-4 |
| Japan - NPB Reserve League | 2023/06/06 04:00 | Seibu Lions - Reserves v Yomiuri Giants - Reserves | W | 5-1 |
| Japan - NPB Reserve League | 2023/06/01 04:00 | Seibu Lions - Reserves v Nipponham Fighters - Reserves | W | 9-1 |
| Japan - NPB Reserve League | 2023/05/31 04:00 | Seibu Lions - Reserves v Nipponham Fighters - Reserves | W | 3-1 |
| Japan - NPB Reserve League | 2023/05/30 04:00 | Seibu Lions - Reserves v Nipponham Fighters - Reserves | W | 9-3 |
| Japan - NPB Reserve League | 2023/05/25 04:00 | Yokohama Bay Stars - Reserves v Seibu Lions - Reserves | D | 4-4 |
| Japan - NPB Reserve League | 2023/05/24 04:30 | Yokohama Bay Stars - Reserves v Seibu Lions - Reserves | L | 2-0 |
| Japan - NPB Reserve League | 2023/05/23 09:00 | Yokohama Bay Stars - Reserves v Seibu Lions - Reserves | W | 0-1 |
| Japan - NPB Reserve League | 2023/06/07 04:00 | Seibu Lions - Reserves v Yomiuri Giants - Reserves | L | 6-4 |
| Japan - NPB Reserve League | 2023/06/06 04:00 | Seibu Lions - Reserves v Yomiuri Giants - Reserves | L | 5-1 |
| Japan - NPB Reserve League | 2023/06/04 04:00 | Yomiuri Giants - Reserves v Nipponham Fighters - Reserves | L | 3-6 |
| Japan - NPB Reserve League | 2023/05/28 04:00 | Yakult Swallows - Reserves v Yomiuri Giants - Reserves | L | 5-1 |
| Japan - NPB Reserve League | 2023/05/26 04:00 | Yakult Swallows - Reserves v Yomiuri Giants - Reserves | W | 3-8 |
| Japan - NPB Reserve League | 2023/05/12 04:00 | Yomiuri Giants - Reserves v Seibu Lions - Reserves | L | 3-4 |
| Japan - NPB Reserve League | 2023/05/11 04:00 | Rakuten Eagles - Reserves v Yomiuri Giants - Reserves | D | 0-0 |
| Japan - NPB Reserve League | 2023/05/10 04:00 | Rakuten Eagles - Reserves v Yomiuri Giants - Reserves | W | 2-5 |