Head to Head
| Japan - NPB | 2017/09/28 09:00 | Seibu Lions v Softbank Hawks | W | 5-8 |
| Japan - NPB | 2017/09/18 04:00 | Softbank Hawks v Seibu Lions | L | 13-14 |
| Japan - NPB | 2017/09/17 04:00 | Softbank Hawks v Seibu Lions | L | 2-3 |
| Japan - NPB | 2017/09/16 05:00 | Softbank Hawks v Seibu Lions | W | 7-3 |
| Japan - NPB | 2017/08/24 09:00 | Seibu Lions v Softbank Hawks | W | 1-10 |
| Japan - NPB | 2017/08/23 09:00 | Seibu Lions v Softbank Hawks | W | 0-9 |
| Japan - NPB | 2017/08/22 09:00 | Seibu Lions v Softbank Hawks | W | 0-7 |
| Japan - NPB | 2017/08/06 09:00 | Softbank Hawks v Seibu Lions | L | 1-6 |
Home History
| Japan - NPB | 2018/04/01 04:00 | Orix Buffaloes v Softbank Hawks | W | 3-12 |
| Japan - NPB | 2018/03/31 04:00 | Orix Buffaloes v Softbank Hawks | L | 8-4 |
| Japan - NPB | 2018/03/30 09:30 | Orix Buffaloes v Softbank Hawks | W | 0-2 |
| Japan Pre-Season Friendlies | 2018/03/24 04:00 | Softbank Hawks v Hiroshima Carp | W | 6-5 |
| Japan Pre-Season Friendlies | 2018/03/21 04:00 | Softbank Hawks v Chunichi Dragons | L | 3-4 |
| Japan Pre-Season Friendlies | 2018/03/17 04:00 | Lotte Marines v Softbank Hawks | L | 4-3 |
| Japan - NPB | 2017/11/04 09:30 | Yokohama Bay Stars v Softbank Hawks | W | 3-4 |
| Japan - NPB | 2017/11/02 09:30 | Softbank Hawks v Yokohama Bay Stars | L | 4-5 |
Away History
| Japan - NPB | 2018/04/01 05:00 | Seibu Lions v Nippon Ham Fighters | W | 4-1 |
| Japan - NPB | 2018/03/31 05:30 | Seibu Lions v Nippon Ham Fighters | W | 7-2 |
| Japan - NPB | 2018/03/30 09:30 | Seibu Lions v Nippon Ham Fighters | W | 11-2 |
| Japan Pre-Season Friendlies | 2018/03/11 04:00 | Orix Buffaloes v Seibu Lions | L | 6-2 |
| Japan - NPB | 2017/10/16 09:00 | Rakuten Eagles v Seibu Lions | L | 5-2 |
| Japan - NPB | 2017/10/15 04:00 | Rakuten Eagles v Seibu Lions | L | 4-1 |
| Japan - NPB | 2017/10/14 04:00 | Rakuten Eagles v Seibu Lions | W | 0-10 |
| Japan - NPB | 2017/10/05 09:00 | Nippon Ham Fighters v Seibu Lions | L | 8-6 |