| Japan - NPB Reserve League | 2019/06/28 04:00 | Yakult Swallows - Reserves v Seibu Lions - Reserves | W | 4-3 |
| Japan - NPB Reserve League | 2019/05/07 04:00 | Seibu Lions - Reserves v Yakult Swallows - Reserves | D | 5-5 |
| Japan - NPB Reserve League | 2020/08/06 04:00 | Yakult Swallows - Reserves v Nipponham Fighters - Reserves | W | 6-5 |
| Japan - NPB Reserve League | 2020/08/05 04:00 | Yakult Swallows - Reserves v Nipponham Fighters - Reserves | L | 1-3 |
| Japan - NPB Reserve League | 2020/08/04 04:00 | Yakult Swallows - Reserves v Nipponham Fighters - Reserves | L | 3-10 |
| Honkbal - Wedstrijden | 2020/03/27 04:00 | Nipponham Fighters - Reserves v Yakult Swallows - Reserves | W | 2-7 |
| Japan - NPB Reserve League | 2019/07/08 04:00 | Yomiuri Giants - Reserves v Yakult Swallows - Reserves | L | 1-0 |
| Japan - NPB Reserve League | 2019/07/06 04:00 | Hanshin Tigers - Reserves v Yakult Swallows - Reserves | D | 0-0 |
| Japan - NPB Reserve League | 2019/07/04 04:00 | Yakult Swallows - Reserves v Rakuten Eagles - Reserves | D | 0-0 |
| Japan - NPB Reserve League | 2019/07/03 04:00 | Yakult Swallows - Reserves v Rakuten Eagles - Reserves | L | 1-3 |
| Japan - NPB Reserve League | 2020/07/28 04:00 | Nipponham Fighters - Reserves v Seibu Lions - Reserves | W | 5-8 |
| Japan - NPB Reserve League | 2020/07/24 04:30 | Yokohama Bay Stars - Reserves v Seibu Lions - Reserves | L | 4-3 |
| Japan - NPB Reserve League | 2020/07/16 04:00 | Yomiuri Giants - Reserves v Seibu Lions - Reserves | W | 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 | 2020/07/09 04:00 | Rakuten Eagles - Reserves v Seibu Lions - Reserves | W | 7-8 |
| Japan - NPB Reserve League | 2020/07/07 03:59 | Rakuten Eagles - Reserves v Seibu Lions - Reserves | D | 0-0 |
| Japan - NPB Reserve League | 2020/06/30 04:00 | Seibu Lions - Reserves v Nipponham Fighters - Reserves | W | 6-1 |
| Japan - NPB Reserve League | 2020/06/28 04:00 | Seibu Lions - Reserves v Chiba Lotte Marines - Reserves | D | 0-0 |