| Japan - NPB - Reserveliga | 2023/09/11 04:00 | Yakult Swallows - Reserve v Seibu Lions - Reserve | L | 7-13 |
| Japan - NPB - Reserveliga | 2023/07/02 04:00 | Yakult Swallows - Reserve v Seibu Lions - Reserve | W | 2-0 |
| Japan - NPB - Reserveliga | 2023/05/17 04:00 | Yakult Swallows - Reserve v Seibu Lions - Reserve | W | 9-7 |
| Japan - NPB - Reserveliga | 2023/05/16 04:00 | Yakult Swallows - Reserve v Seibu Lions - Reserve | L | 7-10 |
| Japan - NPB - Reserveliga | 2023/04/23 04:00 | Yakult Swallows - Reserve v Seibu Lions - Reserve | L | 4-9 |
| Japan - NPB - Reserveliga | 2023/04/22 04:00 | Yakult Swallows - Reserve v Seibu Lions - Reserve | L | 2-8 |
| Japan - NPB - Reserveliga | 2023/04/21 04:00 | Yakult Swallows - Reserve v Seibu Lions - Reserve | L | 2-7 |
| Japan - NPB - Reserveliga | 2022/06/24 04:00 | Yakult Swallows - Reserve v Seibu Lions - Reserve | L | 5-14 |
| Japan - NPB - Reserveliga | 2023/09/11 04:00 | Yakult Swallows - Reserve v Seibu Lions - Reserve | L | 7-13 |
| Japan - NPB - Reserveliga | 2023/08/18 09:00 | Yakult Swallows - Reserve v Yomiuri Giants - Reserve | L | 0-2 |
| Japan - NPB - Reserveliga | 2023/08/03 04:00 | Yakult Swallows - Reserve v Nipponham Fighters - Reserve | L | 6-7 |
| Japan - NPB - Reserveliga | 2023/08/02 04:00 | Yakult Swallows - Reserve v Nipponham Fighters - Reserve | L | 6-13 |
| Japan - NPB - Reserveliga | 2023/08/01 04:00 | Yakult Swallows - Reserve v Nipponham Fighters - Reserve | D | 4-4 |
| Japan - NPB - Reserveliga | 2023/07/08 04:00 | Yakult Swallows - Reserve v Yomiuri Giants - Reserve | L | 6-8 |
| Japan - NPB - Reserveliga | 2023/07/07 04:00 | Yakult Swallows - Reserve v Yomiuri Giants - Reserve | W | 8-3 |
| Japan - NPB - Reserveliga | 2023/07/02 04:00 | Yakult Swallows - Reserve v Seibu Lions - Reserve | W | 2-0 |
| Japan - NPB - Reserveliga | 2023/09/11 04:00 | Yakult Swallows - Reserve v Seibu Lions - Reserve | W | 7-13 |
| Japan - NPB - Reserveliga | 2023/08/24 04:00 | Nipponham Fighters - Reserve v Seibu Lions - Reserve | W | 5-8 |
| Japan - NPB - Reserveliga | 2023/08/23 04:00 | Nipponham Fighters - Reserve v Seibu Lions - Reserve | L | 3-0 |
| Japan - NPB - Reserveliga | 2023/08/17 01:30 | Rakuten Eagles - Reserve v Seibu Lions - Reserve | L | 3-2 |
| Japan - NPB - Reserveliga | 2023/08/16 01:30 | Rakuten Eagles - Reserve v Seibu Lions - Reserve | L | 7-3 |
| Japan - NPB - Reserveliga | 2023/08/15 01:30 | Rakuten Eagles - Reserve v Seibu Lions - Reserve | W | 2-4 |
| Japan - NPB - Reserveliga | 2023/08/07 04:00 | Seibu Lions - Reserve v Nipponham Fighters - Reserve | D | 3-3 |
| Japan - NPB - Reserveliga | 2023/08/03 09:00 | Chiba Lotte Marines - Reserve v Seibu Lions - Reserve | W | 1-5 |