Face à face
| Japon - NPB | 2020/10/15 09:00 | Yokohama Bay Stars v Yakult Swallows | W | 3-4 |
| Japon - NPB | 2020/10/14 09:00 | Yokohama Bay Stars v Yakult Swallows | L | 9-6 |
| Japon - NPB | 2020/10/13 09:00 | Yokohama Bay Stars v Yakult Swallows | L | 8-1 |
| Japon - NPB | 2020/10/01 09:00 | Yakult Swallows v Yokohama Bay Stars | W | 2-0 |
| Japon - NPB | 2020/09/30 09:00 | Yakult Swallows v Yokohama Bay Stars | W | 5-3 |
| Japon - NPB | 2020/09/29 09:00 | Yakult Swallows v Yokohama Bay Stars | L | 4-8 |
| Japon - NPB | 2020/09/17 09:00 | Yokohama Bay Stars v Yakult Swallows | W | 0-9 |
| Japon - NPB | 2020/09/16 09:00 | Yokohama Bay Stars v Yakult Swallows | W | 2-3 |
Home History
| Japon - NPB | 2021/03/28 04:00 | Hanshin Tigers v Yakult Swallows | L | 8-2 |
| Japon - NPB | 2021/03/27 05:00 | Hanshin Tigers v Yakult Swallows | L | 9-5 |
| Japon - NPB - Exhibition | 2021/03/21 04:00 | Yakult Swallows v Seibu Lions | L | 6-8 |
| Japon - NPB - Exhibition | 2021/03/20 04:00 | Yakult Swallows v Seibu Lions | L | 1-2 |
| Japon - NPB - Exhibition | 2021/03/19 04:00 | Rakuten Eagles v Yakult Swallows | W | 4-8 |
| Japon - NPB - Exhibition | 2021/03/17 04:00 | Hiroshima Carp v Yakult Swallows | L | 11-0 |
| Japon - NPB - Exhibition | 2021/03/16 04:00 | Hanshin Tigers v Yakult Swallows | L | 9-6 |
| Japon - NPB - Exhibition | 2021/03/14 04:00 | Chunichi Dragons v Yakult Swallows | W | 4-5 |
Away History
| Japon - NPB | 2021/03/28 05:00 | Yokohama Bay Stars v Yomiuri Giants | D | 1-1 |
| Japon - NPB | 2021/03/27 05:00 | Yokohama Bay Stars v Yomiuri Giants | L | 5-10 |
| Japon - NPB | 2021/03/26 08:45 | Yokohama Bay Stars v Yomiuri Giants | L | 7-8 |
| Japon - NPB - Exhibition | 2021/03/20 05:00 | Lotte Marines v Yokohama Bay Stars | L | 3-1 |
| Japon - NPB - Exhibition | 2021/03/19 04:00 | Yokohama Bay Stars v Seibu Lions | W | 5-1 |
| Japon - NPB - Exhibition | 2021/03/17 09:00 | Yokohama Bay Stars v Softbank Hawks | L | 1-2 |
| Japon - NPB - Exhibition | 2021/03/16 09:00 | Yokohama Bay Stars v Softbank Hawks | L | 0-1 |
| Japon - NPB - Exhibition | 2021/03/14 04:00 | Yokohama Bay Stars v Rakuten Eagles | L | 1-3 |