StadiumStadion NAGANO Stars™
| Current capacity of the stadium |
| Standing | 38 100 |
| Seats | 23 800 |
| Tribune | 14 300 |
| Seats for sponsors | 500 |
| Fans attended |
| 9. 7. 2026 | Kosai-Sumida | 4 672 |
| 4. 7. 2026 | Kosai-Kanazawa | 5 393 |
| 29. 6. 2026 | Kosai- Fukuchiyama Fifty Heroes | 4 875 |
| 25. 6. 2026 | Kosai-Kamakura | 4 537 |
| 20. 6. 2026 | Kosai- Takayama | 4 136 |
| 15. 6. 2026 | Kosai- Shigenobu | 14 771 |
| 11. 6. 2026 | Kosai- Musashino | 16 852 |
| 4. 6. 2026 | Kosai- Ashikaga | 17 173 |