Head to Head
| Japan Pre-Season Friendlies | 2019/03/17 04:00 | Yakult Swallows v Seibu Lions | L | 5-7 |
| Japan NPB | 2018/06/14 09:00 | Yakult Swallows v Seibu Lions | W | 6-4 |
| Japan NPB | 2018/06/13 09:00 | Yakult Swallows v Seibu Lions | L | 4-7 |
| Japan NPB | 2018/06/12 09:00 | Yakult Swallows v Seibu Lions | W | 3-1 |
| Japan NPB | 2017/06/04 04:00 | Seibu Lions v Yakult Swallows | D | 8-8 |
| Japan NPB | 2017/06/03 05:00 | Seibu Lions v Yakult Swallows | L | 11-2 |
| Japan NPB | 2017/06/02 09:00 | Seibu Lions v Yakult Swallows | L | 3-2 |
| Japan NPB | 2016/06/19 04:00 | Yakult Swallows v Seibu Lions | L | 5-7 |
| Japan NPB | 2016/06/18 05:00 | Yakult Swallows v Seibu Lions | W | 5-4 |
| Japan NPB | 2016/06/17 09:00 | Yakult Swallows v Seibu Lions | W | 5-1 |
| Japan NPB | 2015/06/14 04:00 | Seibu Lions v Yakult Swallows | L | 3-2 |
| Japan NPB | 2015/06/13 05:00 | Seibu Lions v Yakult Swallows | L | 6-4 |
| Japan NPB | 2015/06/12 09:00 | Seibu Lions v Yakult Swallows | W | 3-9 |
| Japan NPB | 2014/06/09 09:00 | Yakult Swallows v Seibu Lions | L | 2-5 |
| Japan NPB | 2014/06/08 05:00 | Yakult Swallows v Seibu Lions | W | 9-5 |
| Japan NPB | 2014/05/24 05:00 | Seibu Lions v Yakult Swallows | L | 12-8 |
| Japan NPB | 2014/05/23 09:00 | Seibu Lions v Yakult Swallows | W | 4-8 |