| Japan - NPB - Reserveliga | 2021/08/01 06:00 | Chiba Lotte Marines - Reserve v Seibu Lions - Reserve | W | 4-3 |
| Japan - NPB - Reserveliga | 2021/07/30 04:00 | Chiba Lotte Marines - Reserve v Seibu Lions - Reserve | D | 4-4 |
| Japan - NPB - Reserveliga | 2020/11/22 03:30 | Chiba Lotte Marines - Reserve v Seibu Lions - Reserve | W | 9-4 |
| Japan - NPB - Reserveliga | 2020/08/12 04:00 | Chiba Lotte Marines - Reserve v Seibu Lions - Reserve | D | 0-0 |
| Japan - NPB - Reserveliga | 2020/08/11 04:00 | Chiba Lotte Marines - Reserve v Seibu Lions - Reserve | L | 0-7 |
| Japan - NPB - Reserveliga | 2020/06/28 04:00 | Seibu Lions - Reserve v Chiba Lotte Marines - Reserve | D | 0-0 |
| Baseball-Matches | 2020/03/27 04:00 | Chiba Lotte Marines - Reserve v Seibu Lions - Reserve | W | 5-4 |
| Japan - NPB - Reserveliga | 2019/07/27 04:16 | Chiba Lotte Marines - Reserve v Seibu Lions - Reserve | L | 1-2 |
| Japan - NPB - Reserveliga | 2021/08/18 07:00 | Chiba Lotte Marines - Reserve v Yomiuri Giants - Reserve | L | 1-10 |
| Japan - NPB - Reserveliga | 2021/08/17 07:00 | Chiba Lotte Marines - Reserve v Yomiuri Giants - Reserve | L | 0-2 |
| Japan - NPB - Reserveliga | 2021/08/01 06:00 | Chiba Lotte Marines - Reserve v Seibu Lions - Reserve | W | 4-3 |
| Japan - NPB - Reserveliga | 2021/07/30 04:00 | Chiba Lotte Marines - Reserve v Seibu Lions - Reserve | D | 4-4 |
| Japan - NPB - Reserveliga | 2021/07/29 04:00 | Yomiuri Giants - Reserve v Chiba Lotte Marines - Reserve | W | 5-6 |
| Japan - NPB - Reserveliga | 2021/07/22 04:00 | Chiba Lotte Marines - Reserve v Nipponham Fighters - Reserve | W | 4-3 |
| Japan - NPB - Reserveliga | 2021/07/21 04:00 | Chiba Lotte Marines - Reserve v Nipponham Fighters - Reserve | W | 5-4 |
| Japan - NPB - Reserveliga | 2021/07/20 04:00 | Chiba Lotte Marines - Reserve v Nipponham Fighters - Reserve | W | 7-0 |
| Japan - NPB - Reserveliga | 2021/09/13 08:45 | Rakuten Eagles - Reserve v Seibu Lions - Reserve | W | 1-4 |
| Japan - NPB - Reserveliga | 2021/09/11 04:00 | Rakuten Eagles - Reserve v Seibu Lions - Reserve | W | 0-2 |
| Japan - NPB - Reserveliga | 2021/09/05 04:00 | Seibu Lions - Reserve v Yomiuri Giants - Reserve | W | 7-3 |
| Japan - NPB - Reserveliga | 2021/09/04 04:00 | Seibu Lions - Reserve v Yomiuri Giants - Reserve | W | 7-4 |
| Japan - NPB - Reserveliga | 2021/09/01 03:55 | Nipponham Fighters - Reserve v Seibu Lions - Reserve | W | 10-11 |
| Japan - NPB - Reserveliga | 2021/08/26 04:00 | Yakult Swallows - Reserve v Seibu Lions - Reserve | W | 3-8 |
| Japan - NPB - Reserveliga | 2021/08/25 04:00 | Yakult Swallows - Reserve v Seibu Lions - Reserve | L | 4-0 |
| Japan - NPB - Reserveliga | 2021/08/24 04:00 | Yakult Swallows - Reserve v Seibu Lions - Reserve | L | 13-1 |