StadiumStadion Kosei
| Current capacity of the stadium |
| Standing | 14 500 |
| Seats | 9 100 |
| Tribune | 5 400 |
| Seats for sponsors | 200 |
| Fans attended |
| 5. 2. 2026 | Kosei- Fuso | 5 832 |
| 31. 1. 2026 | Kosei- Yashio | 5 258 |
| 26. 1. 2026 | Kosei- Oizumi | 6 471 |
| 22. 1. 2026 | Kosei- Niigata | 6 089 |
| 17. 1. 2026 | Kosei- Iwase | 6 959 |
| 15. 1. 2026 | Kosei- Makabe | 8 732 |
| 10. 1. 2026 | Kosei- Nishigoshi | 8 561 |
| 8. 1. 2026 | Kosei-Izumisano | 8 532 |
| 3. 1. 2026 | Kosei- Minakami | 9 181 |