Head to Head
| Japão - NPB | 2018/06/14 09:00 | Yakult Swallows v Seibu Lions | W | 6-4 |
| Japão - NPB | 2018/06/13 09:00 | Yakult Swallows v Seibu Lions | L | 4-7 |
| Japão - NPB | 2018/06/12 09:00 | Yakult Swallows v Seibu Lions | W | 3-1 |
| Japão - NPB | 2017/06/04 04:00 | Seibu Lions v Yakult Swallows | D | 8-8 |
| Japão - NPB | 2017/06/03 05:00 | Seibu Lions v Yakult Swallows | L | 11-2 |
| Japão - NPB | 2017/06/02 09:00 | Seibu Lions v Yakult Swallows | L | 3-2 |
| Japão - NPB | 2016/06/19 04:00 | Yakult Swallows v Seibu Lions | L | 5-7 |
| Japão - NPB | 2016/06/18 05:00 | Yakult Swallows v Seibu Lions | W | 5-4 |
Home History
| Japan Pre-Season Friendlies | 2019/03/16 04:00 | Yakult Swallows v Yomiuri Giants | L | 7-8 |
| Japan Pre-Season Friendlies | 2019/03/13 04:00 | Lotte Marines v Yakult Swallows | W | 5-9 |
| Japan Pre-Season Friendlies | 2019/03/12 04:00 | Lotte Marines v Yakult Swallows | W | 0-4 |
| Japan Pre-Season Friendlies | 2019/03/07 05:00 | Orix Buffaloes v Yakult Swallows | L | 5-0 |
| Japan Pre-Season Friendlies | 2019/03/06 09:00 | Orix Buffaloes v Yakult Swallows | W | 4-5 |
| Japan Pre-Season Friendlies | 2019/03/05 09:00 | Orix Buffaloes v Yakult Swallows | L | 5-1 |
| Japan Pre-Season Friendlies | 2019/03/02 09:00 | Yomiuri Giants v Yakult Swallows | L | 5-4 |
| Japão - NPB | 2018/10/14 09:00 | Yomiuri Giants v Yakult Swallows | L | 4-0 |
Away History
| Japan Pre-Season Friendlies | 2019/03/16 04:00 | Hanshin Tigers v Seibu Lions | W | 1-5 |
| Japan Pre-Season Friendlies | 2019/03/16 04:00 | Yokohama Bay Stars v Seibu Lions | W | 1-4 |
| Japan Pre-Season Friendlies | 2019/03/06 09:00 | Seibu Lions v Softbank Hawks | L | 2-5 |
| Japan Pre-Season Friendlies | 2019/03/05 09:00 | Seibu Lions v Softbank Hawks | W | 11-3 |
| Japão - NPB | 2018/10/21 04:00 | Softbank Hawks v Seibu Lions | L | 6-5 |
| Japão - NPB | 2018/10/20 05:00 | Softbank Hawks v Seibu Lions | L | 8-2 |
| Japão - NPB | 2018/10/19 09:00 | Softbank Hawks v Seibu Lions | L | 15-4 |
| Japão - NPB | 2018/10/18 09:00 | Softbank Hawks v Seibu Lions | W | 5-13 |