StadiumStadion Koshi
| Current capacity of the stadium |
| Standing | 19 900 |
| Seats | 12 400 |
| Tribune | 7 500 |
| Seats for sponsors | 200 |
| Fans attended |
| 16. 4. 2026 | Koshi-Himi | 3 785 |
| 11. 4. 2026 | Koshi-FC Tokio | 4 390 |
| 6. 4. 2026 | Koshi-Morioka | 5 934 |
| 2. 4. 2026 | Koshi-Suginami | 7 980 |
| 28. 3. 2026 | Koshi-Hamamatsu | 14 231 |
| 25. 3. 2026 | Koshi- Tazawako | 18 437 |
| 23. 3. 2026 | Koshi-Ashikaga | 9 124 |
| 22. 3. 2026 | Koshi-Kawasaki Frontale | 12 011 |
| 19. 3. 2026 | Koshi-Dazaifu | 9 074 |