[5] Koshigaya Alphas 63-73 Sendai 89ers [4] 2021-04-21 10:00
Stadium: Koshigaya Municipal Gymnasium Round: 1
Head to Head
| Japan B League 2 | 2021/01/31 04:00 | Sendai 89ers v Koshigaya Alphas | W | 63-75 |
| Japan B League 2 | 2021/01/30 06:00 | Sendai 89ers v Koshigaya Alphas | W | 89-101 |
| Japan B League 2 | 2020/12/09 10:00 | Koshigaya Alphas v Sendai 89ers | W | 72-64 |
| Japan B League 2 | 2020/10/28 10:00 | Sendai 89ers v Koshigaya Alphas | W | 82-91 |
| Japan B League 2 | 2020/02/09 06:00 | Koshigaya Alphas v Sendai 89ers | L | 55-58 |
| Japan B League 2 | 2020/02/08 06:00 | Koshigaya Alphas v Sendai 89ers | L | 68-85 |
| Japan B League 2 | 2019/11/10 04:30 | Sendai 89ers v Koshigaya Alphas | L | 77-73 |
| Japan B League 2 | 2019/11/09 04:30 | Sendai 89ers v Koshigaya Alphas | L | 85-76 |