| Japan NPB Reserve League | 2021/08/18 07:00 | Chiba Lotte Marines Reserves v Yomiuri Giants Reserves | L | 1-10 |
| Japan NPB Reserve League | 2021/08/17 07:00 | Chiba Lotte Marines Reserves v Yomiuri Giants Reserves | L | 0-2 |
| Japan NPB Reserve League | 2021/07/29 04:00 | Yomiuri Giants Reserves v Chiba Lotte Marines Reserves | W | 5-6 |
| Japan NPB Reserve League | 2021/06/29 02:39 | Chiba Lotte Marines Reserves v Yomiuri Giants Reserves | W | 6-4 |
| Japan NPB Reserve League | 2021/04/08 04:00 | Chiba Lotte Marines Reserves v Yomiuri Giants Reserves | W | 9-0 |
| Japan NPB Reserve League | 2020/08/26 07:00 | Chiba Lotte Marines Reserves v Yomiuri Giants Reserves | W | 4-3 |
| Japan NPB Reserve League | 2020/08/25 07:00 | Chiba Lotte Marines Reserves v Yomiuri Giants Reserves | W | 9-2 |
| Japan NPB Reserve League | 2020/07/26 04:00 | Chiba Lotte Marines Reserves v Yomiuri Giants Reserves | L | 1-2 |
| Japan NPB Reserve League | 2021/11/01 03:30 | Hanshin Tigers Reserves v Chiba Lotte Marines Reserves | L | 10-2 |
| Japan NPB Reserve League | 2021/09/20 04:00 | Chiba Lotte Marines Reserves v Seibu Lions Reserves | D | 0-0 |
| Japan NPB Reserve League | 2021/08/18 07:00 | Chiba Lotte Marines Reserves v Yomiuri Giants Reserves | L | 1-10 |
| Japan NPB Reserve League | 2021/08/17 07:00 | Chiba Lotte Marines Reserves v Yomiuri Giants Reserves | L | 0-2 |
| Japan NPB Reserve League | 2021/08/01 06:00 | Chiba Lotte Marines Reserves v Seibu Lions Reserves | W | 4-3 |
| Japan NPB Reserve League | 2021/07/30 04:00 | Chiba Lotte Marines Reserves v Seibu Lions Reserves | D | 4-4 |
| Japan NPB Reserve League | 2021/07/29 04:00 | Yomiuri Giants Reserves v Chiba Lotte Marines Reserves | W | 5-6 |
| Japan NPB Reserve League | 2021/07/22 04:00 | Chiba Lotte Marines Reserves v Nipponham Fighters Reserves | W | 4-3 |
| Japan NPB Reserve League | 2021/10/31 03:30 | Nipponham Fighters Reserves v Yomiuri Giants Reserves | L | 5-3 |
| Japan NPB Reserve League | 2021/10/27 03:30 | Yomiuri Giants Reserves v Seibu Lions Reserves | W | 4-1 |
| Japan NPB Reserve League | 2021/10/26 03:30 | Chunichi Dragons Reserves v Yomiuri Giants Reserves | L | 4-0 |
| Japan NPB Reserve League | 2021/10/03 04:00 | Yomiuri Giants Reserves v Seibu Lions Reserves | W | 5-1 |
| Japan NPB Reserve League | 2021/09/29 07:00 | Nipponham Fighters Reserves v Yomiuri Giants Reserves | L | 13-7 |
| Japan NPB Reserve League | 2021/09/28 07:00 | Nipponham Fighters Reserves v Yomiuri Giants Reserves | W | 0-6 |
| Japan NPB Reserve League | 2021/09/20 04:00 | Yakult Swallows Reserves v Yomiuri Giants Reserves | L | 14-4 |
| Japan NPB Reserve League | 2021/09/19 04:00 | Yakult Swallows Reserves v Yomiuri Giants Reserves | W | 3-4 |