StadiumStadion Koshi
| Current capacity of the stadium |
| Standing | 19 900 |
| Seats | 12 400 |
| Tribune | 7 500 |
| Seats for sponsors | 200 |
| Fans attended |
| 2. 2. 2026 | Koshi- Matsue | 31 473 |
| 26. 1. 2026 | Koshi-Asahi | 18 956 |
| 22. 1. 2026 | Koshi- Otawara | 22 942 |
| 17. 1. 2026 | Koshi-Matsushima | 27 788 |
| 12. 1. 2026 | Koshi-Sapporo | 26 029 |
| 5. 1. 2026 | Koshi-Hokkaido Club Nippon | 27 364 |
| 1. 1. 2026 | Koshi-Fuchu | 24 820 |
| 27. 12. 2025 | Koshi- Sayama | 18 196 |
| 26. 12. 2025 | Koshi-FC Tokyo | 29 112 |