Head to Head
| Japan NPB | 2021/08/15 09:00 | Yakult Swallows v Yokohama Bay Stars | L | 4-1 |
| Japan NPB | 2021/05/23 08:30 | Yokohama Bay Stars v Yakult Swallows | L | 5-10 |
| Japan NPB | 2021/05/22 08:30 | Yokohama Bay Stars v Yakult Swallows | L | 0-1 |
| Japan NPB | 2021/05/21 08:30 | Yokohama Bay Stars v Yakult Swallows | W | 5-3 |
| Japan NPB | 2021/05/02 05:00 | Yakult Swallows v Yokohama Bay Stars | W | 7-8 |
| Japan NPB | 2021/05/01 05:00 | Yakult Swallows v Yokohama Bay Stars | W | 2-10 |
| Japan NPB | 2021/04/30 08:45 | Yakult Swallows v Yokohama Bay Stars | L | 4-0 |
| Japan NPB | 2021/04/15 08:30 | Yokohama Bay Stars v Yakult Swallows | L | 1-2 |
Home History
| Japan NPB | 2021/08/21 05:00 | Yokohama Bay Stars v Yomiuri Giants | W | 7-2 |
| Japan NPB | 2021/08/20 08:45 | Yokohama Bay Stars v Yomiuri Giants | W | 6-1 |
| Japan NPB | 2021/08/19 08:45 | Hanshin Tigers v Yokohama Bay Stars | W | 4-5 |
| Japan NPB | 2021/08/18 08:45 | Hanshin Tigers v Yokohama Bay Stars | L | 5-2 |
| Japan NPB | 2021/08/17 08:45 | Hanshin Tigers v Yokohama Bay Stars | L | 6-2 |
| Japan NPB | 2021/08/15 09:00 | Yakult Swallows v Yokohama Bay Stars | L | 4-1 |
| Japan NPB Exhibition | 2021/08/06 04:00 | Yokohama Bay Stars v Nippon Ham Fighters | L | 4-8 |
| Japan NPB Exhibition | 2021/08/05 03:57 | Yokohama Bay Stars v Nippon Ham Fighters | L | 1-4 |
Away History
| Japan NPB | 2021/08/21 09:00 | Yakult Swallows v Hiroshima Carp | W | 8-3 |
| Japan NPB | 2021/08/20 09:00 | Yakult Swallows v Hiroshima Carp | L | 4-5 |
| Japan NPB | 2021/08/18 09:30 | Yomiuri Giants v Yakult Swallows | L | 3-2 |
| Japan NPB | 2021/08/17 09:30 | Yomiuri Giants v Yakult Swallows | W | 3-13 |
| Japan NPB | 2021/08/15 09:00 | Yakult Swallows v Yokohama Bay Stars | W | 4-1 |
| Japan NPB Exhibition | 2021/07/31 09:00 | Yakult Swallows v Softbank Hawks | W | 5-3 |
| Japan NPB | 2021/07/14 08:45 | Yakult Swallows v Yomiuri Giants | W | 11-7 |
| Japan NPB | 2021/07/13 08:45 | Yakult Swallows v Yomiuri Giants | W | 14-6 |