StadiumStadion Koshi
| Current capacity of the stadium |
| Standing | 19 900 |
| Seats | 12 400 |
| Tribune | 7 500 |
| Seats for sponsors | 200 |
| Fans attended |
| 17. 8. 2026 | Koshi-FC Tokyo | 5 361 |
| 13. 8. 2026 | Koshi- Sasebo | 4 994 |
| 8. 8. 2026 | Koshi- Fukushima | 4 585 |
| 3. 8. 2026 | Koshi-Suginami | 4 030 |
| 30. 7. 2026 | Koshi-Setagaya | 4 126 |
| 25. 7. 2026 | Koshi-Saga | 3 782 |
| 20. 7. 2026 | Koshi- Nonoichi | 4 673 |
| 11. 7. 2026 | Koshi-Hirošima | 4 621 |
| 6. 7. 2026 | Koshi-Hamamatsu | 4 270 |